Entries |
Document | Title | Date |
20080200740 | PROCESS FOR CONVERTING GASEOUS ALKANES TO OLEFINS AND LIQUID HYDROCARBONS - A process for converting gaseous alkanes to olefins and higher molecular weight hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over a synthetic crystalline alumino-silicate catalyst, such as an X or Y type zeolite, at a temperature of from about 250° C. to about 500° C. so as to form olefins, higher molecular weight hydrocarbons and hydrobromic acid vapor. Various methods are disclosed to remove the hydrobromic acid vapor from the higher molecular weight hydrocarbons and to generate bromine from the hydrobromic acid for use in the process. | 08-21-2008 |
20080228019 | Method for Obtaining Raw -1,3-Butadiene - The invention relates to a method for obtaining raw-1,3-butadiene by extractive distillation with a selective solvent from a C | 09-18-2008 |
20080312481 | Propylene production - A process for producing propylene from ethylene and a feed stream comprising 1-butene, 2-butene, n-butane, and isobutane is disclosed. A butenes stream (1-butene and 2-butene) is produced from the feed stream by removing the paraffins. The butenes stream is reacted in the presence of an isomerization catalyst to produce an isomerized stream with increased concentration of 2-butene. The isomerized stream is reacted with ethylene in the presence of a metathesis catalyst to produce a reaction mixture comprising propylene; the propylene may be isolated from the reaction mixture by distillation. The removal of paraffins from the feed stream improves the catalyst productivity and the plant throughput. | 12-18-2008 |
20090030251 | Use of Olefin Cracking to Produce Alkylate - A process for producing a feedstock for gasolines having very little aromatic concentrations is disclosed. The present process uses by-product olefins and alkanes to produce an alkylate for use in gasoline blending. | 01-29-2009 |
20090030252 | Integration of Olefin Cracking with Metathesis to Increase Light Olefins Production - A process for increasing the propylene yields for hydrocarbon cracking processes. The process includes adding using alkylation of the C4s coming from the hydrocarbon cracker, and passing larger olefins to an olefin cracking unit. | 01-29-2009 |
20090112030 | METHOD FOR OLEFIN PRODUCTION FROM BUTANES - Systems and processes for producing one or more olefins are provided. In one or more embodiments, a C | 04-30-2009 |
20090112031 | METHOD FOR OLEFIN PRODUCTION FROM BUTANES USING A CATALYST - Systems and processes for producing one or more olefins are provided. In one or more embodiments, a feed stream containing butane can be dehydrogenated to provide a first product containing butene. At least a portion of the first product can bypass an existing etherification reactor used for converting isobutylene to MTBE. At least a portion of the first product can be cracked using a catalytic cracker at conditions favoring the conversion of the first product to propylene to provide a second product containing propylene, ethylene, and butane. In one or more embodiments, a catalyst consisting of essentially a zeolite favoring the production of propylene can be used in the catalytic cracker. | 04-30-2009 |
20090112032 | METHOD FOR OLEFIN PRODUCTION FROM BUTANES AND CRACKING REFINERY HYDROCARBONS - Systems and processes for producing one or more olefins are provided. A feed comprising butane can be dehydrogenated to provide a first product comprising butene. The first product can bypass an etherification reactor for converting isobutylene to methyl tert-butyl, and at least a portion of the first product can be cracked in a first cracking zone and fractionated to provide an olefinic mixture comprising propylene, ethylene, and butane. A refinery hydrocarbon comprising gas oil, full range gas oil, resid, or a combination thereof can be cracked in a second cracking zone and quenched to provide a quenched hydrocarbon. The olefinic mixture and the quenched hydrocarbon can be combined and selectively separated to provide a propylene product and a butane recycle. | 04-30-2009 |
20090198090 | Process for the Production of Ethylene - The invention relates to a process for the production of ethylene, comprising the steps of a) thermally converting, by a pyrolysis or a partial oxidation process, a feed charge containing methane into an acetylene containing effluent, and b) in situ hydrogenating, by a non-catalytic reaction, the acetylene produced in the first step into ethylene by intimately mixing the acetylene containing effluent with an ethane feed. | 08-06-2009 |
20090292151 | Oxygenate Conversion to Olefins With Metathesis - A processing scheme and system for enhanced light olefin production, particularly for increased relative yield of propylene, involves oxygenate conversion to olefins and subsequent oxygenate conversion effluent stream treatment including cross-metathesis of 1-butene with 2-butene, metathesis of 2-butene with ethylene, conversion or removal of at least a portion of the isobutene, and/or isomerization of at least a portion of 1-butene to 2-butene to produce additional propylene. The processing scheme and system may further involve a reaction with distillation column for the metathesis of butenes with ethylene to produce propylene and/or a reaction with distillation column for the conversion of isobutenes with an oxygenate-containing material to produce a tertiary ether or alcohol. | 11-26-2009 |
20090326293 | PROCESS FOR PRODUCING LIGHT OLEFINS FROM A FEED CONTAINING TRIGLYCERIDES - The process combines hydroconversion and catalytic cracking starting from a feed containing triglycerides, at concentrations of fatty acids above 85%, which maximizes the yields of light olefins, chiefly ethylene and propylene, while reducing the yield of gasoline, with conversion greater than 80 wt. %. | 12-31-2009 |
20100063337 | REACTOR FOR PRODUCING C2- TO C8- OLEFINS FROM A MATERIAL FLOW CONTAINING OXYGENATE, WATER VAPOR AND ONE OR MORE HYDROCARBONS - The invention relates to a reactor for the production of C | 03-11-2010 |
20100076238 | Production of Fuel from Co-Processing Multiple Renewable Feedstocks - A process for producing a fuel or fuel blending component from co-processing at least two different classes of renewable feedstocks, is presented. One feedstock comprises glycerides and free fatty acids in feedstocks such as plant and animal oils while the other feedstock comprises biomass derived pyrolysis oil. The source of the animal or plant oil and the biomass may be the same renewable source. | 03-25-2010 |
20100145120 | Production of Propylene and Ethylene from Butane and Ethane - The present invention relates to a process for the selective production of olefins from light hydrocarbons comprising:
| 06-10-2010 |
20100152509 | Fuel Produced From a Biomass - The present invention relates to a method of production of a fuel containing at least one hydrocarbon from a biomass, comprising the steps of: -A) chemical decomposition of the biomass in a solvent to at least one chemical intermediate compound chosen from the group consisting of a hexose, a pentose and a derivative of lignin, or a combination thereof, optionally produced together with at least one other target chemical, to form a first solution; - B) complete reduction of the first solution with a reducing agent to at least one hydrocarbon to form a fuel; wherein the steps A) and B) are performed below 300° C. | 06-17-2010 |
20100168487 | Propylene production - A propylene production process is disclosed. The process comprises (a) reacting a feed stream comprising isobutene in the presence of a skeletal isomerization catalyst to obtain an isomerized stream comprising C | 07-01-2010 |
20100168488 | FLUID CATALYTIC CRACKING SYSTEM AND PROCESS - One exemplary embodiment can be a fluid catalytic cracking system. Generally, the fluid catalytic cracking system includes a first reaction vessel and a second reaction vessel. The first reaction vessel may contain a first catalyst having pores with openings greater than about 0.7 nm and a second catalyst having pores with smaller openings than the first catalyst. What is more, the second reaction vessel may contain the second catalyst. Generally, at least a portion of the second catalyst is directly communicated with the first reaction vessel. | 07-01-2010 |
20100197985 | PROCESSES FOR MAKING ETHANOL FROM ACETIC ACID - A process for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of first metal, a silicaceous support, and at least one support modifier. Preferably, the first metal is selected from the group consisting of copper, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, titanium, zinc, chromium, rhenium, molybdenum, and tungsten. In addition the catalyst may comprise a second metal preferably selected from the group consisting of copper, molybdenum, tin, chromium, iron, cobalt, vanadium, tungsten, palladium, platinum, lanthanum, cerium, manganese, ruthenium, rhenium, gold, and nickel. | 08-05-2010 |
20100204530 | Preparing A Light-Olefin Containing Product Stream from an Oxygenate-Containing Feed Steam Using Reactors Directing a Flow of a Fluidized Dual-Function Catalyst System - The present invention provides a reactor system for converting an oxygenate-containing feed stream to an olefin-containing product stream. The system includes: (1) a first fluidized catalytic reactor for converting methanol to propylene, the first reactor having a fluidized catalyst system comprising a first catalyst and a second catalyst; (2) a second fluidized catalytic reactor communicating with the first fluidized catalytic reactor for cracking heavy olefins having four carbon atoms or greater into propylene, the second reactor having the fluidized catalyst system; (3) wherein the first catalyst is a non-zeolite molecular sieve catalyst; and (4) wherein the second catalyst is a zeolite molecular sieve catalyst. | 08-12-2010 |
20100240938 | PROCESS FOR PRODUCING TRIPTANE - A process for producing triptane and/or triptene from methanol and/or one or more derivatives thereof, and optionally one or more further alcohols and/or derivatives thereof at a temperature in the range of from 150 to 400° C., in the presence of a zeolite catalyst having Brønsted acidity, in which all the carbon atoms in the triptane and/or triptene are derived from the methanol and/or one or more derivatives thereof and the optional further alcohols and/or derivatives thereof, the zeolite catalyst being selected from: i. zeolites having frameworks comprising silicon and aluminium atoms at a Si:Al mole ratio of greater than (2), which zeolites also have a channel structure comprising a ring size of (12) or more non-oxygen atoms in (2) or (3) dimensions; and ii. zeolites having frameworks comprising silicon and aluminium atoms, and which have a framework ring comprising (12) or more non-oxygen-atoms accessible on the external surface of the zeolite and a pore structure in which all of the channels have a ring-size of less than (12) non-oxygen atoms. There is also described a process for producing triptane and/or triptene wherein the zeolite catalyst is zeolite X, the reaction composition additionally comprises a C | 09-23-2010 |
20100249473 | Oxidative Coupling of Hydrocarbons as Heat Source - A process for the coupling of hydrocarbons and utilizing the heat energy produced by the reaction is disclosed. In one embodiment the process can include reacting methane with oxygen to form a product stream containing ethane and further processing the ethane to ethylene in an existing ethylene production facility while using the heat energy produced by the reaction within the facility. | 09-30-2010 |
20100261940 | PROCESS FOR PRODUCING LIGHT OLEFINS FROM SYNTHESIS GAS USING DUAL SEQUENTIAL BED REACTOR - The present invention relates to a process for producing light olefins from a synthesis gas with significantly improved conversion and selectivity for C | 10-14-2010 |
20100268007 | PROCESS FOR CONVERTING AN OXYGENATE INTO AN OLEFIN-CONTAINING PRODUCT, AND REACTOR SYSTEM - A process for converting an oxygenate to an olefin-containing product, wherein oxygenate is contacted with an oxygenate conversion catalyst in a reactor system comprising two or more serially arranged riser reactor stages to obtain a riser reactor effluent from each stage, wherein each riser reactor stage comprises a single riser reactor or a plurality of parallel riser reactors, such that at least part of the riser reactor effluent of a preceding riser reactor stage is fed into a subsequent riser reactor stage, and wherein oxygenate is added to a plurality of the riser reactor stages; and a reactor system comprising two or more serially arranged riser reactor stages wherein the first of the two or more serially arranged riser reactor stages has a smaller total cross-sectional area than at least one of the subsequent riser reactor stages. | 10-21-2010 |
20100274063 | PROCESS FOR PRODUCING OLEFINS - The present invention discloses a process for producing olefins from petroleum saturated hydrocarbons. The process of the present invention comprises: contacting a preheated petroleum saturated hydrocarbons feedstock with a dehydrogenation catalyst in a dehydrogenation reaction zone of a reaction system to obtain a petroleum hydrocarbon stream containing unsaturated hydrocarbon compounds, in which the dehydrogenation reaction has a conversion rate of at least 20%; and contacting the obtained petroleum hydrocarbon stream containing the unsaturated hydrocarbon compounds with olefins cracking catalyst in an olefin cracking zone of the reaction system to obtain a product stream containing olefins with a reduced number of carbon atoms. | 10-28-2010 |
20100292520 | PROCESS FOR PRODUCING ALKENES OXYGENATES BY USING SUPPORTED HETEROPOLYACID CATALYSTS - The present invention relates to a supported heteropolyacid catalyst, to a process for producing alkenes from oxygenates in the presence of said catalyst, and to the use of said catalyst in a process for producing alkenes from oxygenates at a higher productivity whilst reducing the formation of alkanes. | 11-18-2010 |
20100305377 | PROCESS FOR THE PREPARATION OF AN OLEFIN - An olefin is prepared from an alkyl alcohol in a process, comprising the steps: a) converting the alkyl alcohol into a dialkylether over a first catalyst, to yield a dialkylether product stream containing alkyl alcohol, dialkylether and water; b) separating the dialkylether product stream into a vaporous dialkylether-rich stream and a liquid water-containing stream which water-containing stream comprises at most 5% wt of alkyl alcohol, based on the total weight of water and alkyl alcohol; and c) converting the vaporous dialkylether-rich stream to an olefin over a second catalyst, wherein the dialkylether product stream is enriched with a base. | 12-02-2010 |
20110034746 | HYDROCARBON CONVERSION PROCESSES USING UZM-29 AND UZM-29HS CRYSTALLINE ZEOLITIC COMPOSITIONS - This invention relates to hydrocarbon conversion processes using UZM-29 and UZM-29HS zeolitic compositions. The UZM-29 zeolites are represented by the empirical formula: | 02-10-2011 |
20110065969 | METHOD AND SYSTEM FOR OXIDATIVELY INCREASING CETANE NUMBER OF HYDROCARBON FUEL - High energy (e.g., ultrasonic) mixing of a liquid hydrocarbon feedstock and reactants comprised of an oxidation source, catalyst and acid yields a diesel fuel product or additive having substantially increased cetane number. Ultrasonic mixing creates cavitation, which involves the formation and violent collapse of micron-sized bubbles, which greatly increases the reactivity of the reactants. This, in turn, substantially increases the cetane number compared to reactions carried out using conventional mixing processes, such as simple mechanical stirring. Alternatively, an aqueous mixture comprising water and acid can be pretreated with an oxidation source such as ozone and subjected to ultrasonic cavitation prior to reacting the pretreated mixture with a liquid hydrocarbon feedstock. | 03-17-2011 |
20110105815 | Process to Make Olefins from Ethanol - The present invention relates to a process for the conversion of ethanol to make essentially ethylene and propylene, comprising:
| 05-05-2011 |
20110112347 | PROCESS TO PREPARE AN OLEFIN-CONTAINING PRODUCT OR A GASOLINE PRODUCT - Process to prepare an olefin-containing product or a gasoline product from a solid carbonaceous feedstock by performing the steps of (a) feeding an oxygen comprising gas and the carbonaceous feedstock to a burner firing into a reactor vessel, which burner is preferably positioned horizontal, (b) performing a partial oxidation of the carbonaceous feedstock in said burner to obtain a stream of hot synthesis gas and a liquid slag, (c) cooling the hot synthesis gas by direct contacting with a liquid water-containing cooling medium, (e) performing a water shift reaction on at least part of the synthesis gas, to obtain a synthesis gas effluent, (g) performing an oxygenate synthesis using the synthesis gas effluent of step (e), to obtain a methanol and/or dimethylether containing oxygenate effluent and a first liquid water-rich by-product, (h) converting the oxygenate effluent to an olefin-containing product or a gasoline product and a second liquid water-rich by-product, wherein at least part of the first and/or second liquid water-rich by-product is used in step c), forming at least part of the liquid water-containing cooling medium. | 05-12-2011 |
20110130604 | SYSTEM AND PROCESS FOR PRODUCING LINEAR ALPHA OLEFINS - Processes and systems for producing linear alpha olefins are described herein. One embodiment is a process comprising: a) separating a mixed butene stream comprising 1-butene and 2-butene into an overhead 1-butene stream and a bottoms 2-butene stream in a butene distillation column, a portion of the bottoms 2-butene stream being separated to form a butene reboiler stream that is heated and vaporized in a reboiler and returned to the butene distillation column, (b) subjecting at least a portion of the overhead 1-butene stream from (a) to catalytic metathesis to produce an effluent including 3-hexene, (c) isomerizing 3-hexene from (b) to produce a mixed hexene stream comprising 1-hexene, 2-hexene and 3-hexene, (d) separating the mixed hexene stream in a hexene fractionation tower to form a 1-hexene vapor overhead stream that is condensed in a cooler and a bottoms stream comprising 2-hexene and 3-hexene, and (e) using heat obtained by condensing the 1-hexene vapor overhead stream of (d) to heat the butene reboiler stream of (a). Another embodiment is a superfractionation process. Corresponding systems are also disclosed. | 06-02-2011 |
20110137096 | Process to Make Olefins from Ethanol - The present invention relates to a process for the conversion of ethanol to make essentially ethylene and propylene, comprising:
| 06-09-2011 |
20110172476 | INTEGRATED PROCESS AND APPARATUS TO PRODUCE HYDROCARBONS FROM AQUEOUS SOLUTIONS OF LACTONES, HYDROXY-CARBOXYLIC ACIDS, ALKENE-CARBOXYLIC ACIDS, AND/OR ALCOHOLS - A process for producing hydrocarbons, especially C | 07-14-2011 |
20110224470 | PROCESS FOR PREPARING LOWER HYDROCARBONS FROM GLYCEROL - The present invention relates to a process of preparing hydrocarbons from oxygenated hydrocarbons by use of at least two catalysts. | 09-15-2011 |
20110245560 | Olefin Metathesis Reactant Ratios Used with Tungsten Hydride Catalysts - Processes for olefin metathesis, for example for the production of propylene, utilize a catalyst comprising a solid support and a tungsten hydride bonded to alumina present in the support. Conversion, selectivity, and/or catalyst stability advantages may be realized when a first olefin reactant (e.g., ethylene) is present in the hydrocarbon feedstock at a stoichiometric deficit relative to a second, higher carbon number olefin reactant (e.g., butylene). | 10-06-2011 |
20110301393 | Two Stage Oxygenate Conversion Reactor with Improved Selectivity - A process and apparatus is presented for the improved selectivity of oxygenate conversion to olefins. The process includes passing a process stream through a two stage reactor, wherein the process stream is separated from the catalyst in the first stage before passing the process stream to the second stage. The catalyst is continuously passed through the two stages, and cycles through a regeneration unit to control the carbon content on the catalyst. | 12-08-2011 |
20110306811 | PROCESSES FOR PRODUCING LIGHT OLEFINS - A process for producing at least one light olefin, comprising converting three raw materials in the presence of at least one catalyst comprising at least one molecular sieve and regenerating said at least one catalyst into three separate product streams. | 12-15-2011 |
20110313221 | FLEXIBLE PROCESS FOR TRANSFORMATION OF ETHANOL INTO MIDDLE DISTILLATES IMPLEMENTING A HOMOGENEOUS CATALYTIC SYSTEM AND A HETEROGENEOUS CATALYTIC SYSTEM - The invention describes a process for the production of middle distillate hydrocarbon bases from an ethanol feedstock that is produced from a renewable source that is obtained from biomass, comprising a stage for purification of said feedstock, a stage for dehydration of said purified feedstock into an effluent that is for the most part ethylene and comprises water, at least one stage for separating water, a first stage for oligomerization of the effluent that is for the most part ethylene into at least one olefinic effluent that comprises at least 80% by weight of olefins that have four or more carbon atoms, in the presence of a homogeneous catalyst that comprises at least one bivalent nickel compound, whereby a second oligomerization stage produces middle distillate hydrocarbon bases in the presence of an amorphous or zeolitic catalyst that has at least pore openings that contain 10 or 12 oxygen atoms, producing middle distillate hydrocarbon bases, and a fractionation stage. | 12-22-2011 |
20120010451 | PROCESS FOR OBTAINING HIGH-PURITY 1-BUTENE FROM C4 HYDROCARBON MIXTURES - A process is described for obtaining high-purity 1-butene starting from C | 01-12-2012 |
20120029255 | PROCESS FOR CONVERTING A HEAVY FEED INTO GASOLINE AND PROPYLENE, HAVING AN ADJUSTABLE YIELD STRUCTURE - The present invention describes a process for conversion of a heavy feed, having high flexibility as regards the production of propylene and gasoline. The process uses a catalytic cracking unit followed by a unit for oligomerization of C3/C4 olefins, C4 or C4/C5 olefins depending on the selected production. The process of the invention encompasses cases in which catalytic cracking is carried out in a single reactor or in two distinct reactors, each reactor possibly functioning in riser or dropper mode. | 02-02-2012 |
20120071701 | Integration of Cyclic Dehydrogenation Process with FCC for Dehydrogenation of Refinery Paraffins - A process for increasing light olefin yields from the fluidized catalytic cracking process. The process combines small units to treat the paraffinic components in the product streams from the fluidized cracking process. The paraffins are dehydrogenated and light olefins are separated. Heavier olefins are passed to an olefin cracking unit for increasing the yields of ethylene and propylene. | 03-22-2012 |
20120083634 | Adsorbent Regeneration in Light Olefin Recovery Process - A process is presented for the regeneration of adsorbent beds in the light olefin recovery process. The process uses gas generated in the methanol to olefins process to regenerate adsorbent beds. The gas removes the need for external gases, and the gas can be used in the periodic purging of the methanol to olefins reactor. | 04-05-2012 |
20120101320 | PROCESS TO PREPARE OLEFINS FROM ALIPHATIC ALCOHOLS - A process to prepare an olefin from its corresponding alcohol is improved by reacting, under reaction conditions including a first temperature, an aliphatic alcohol and, optionally, diluent water, to form a reaction product including at least a dialkyl ether. The product is then reacted again, under higher temperature to complete the dehydration of the dialkyl ether to the desired olefin. This process is particularly suitable to prepare ethene from ethyl alcohol. The stepped temperature scheme serves to reduce the formation of byproduct aldehydes, which in turn reduces coke formation, fouling, and the need to handle large amounts of water, thereby lowering energy and capital costs. | 04-26-2012 |
20120142985 | PREPARATION OF ISOBUTENE BY DISSOCIATION OF MTBE - The invention relates to a method for producing isobutene by cracking MTBE, wherein the following steps are carried out: a) MTBE synthesis; reacting isobutene-containing hydrocarbon mixtures (II) with methanol (III), contained in one or more methanol-containing streams (VIII, IX), on acidic ion exchangers obtaining a stream (IV) containing MTBE and TBA, b) MTBE separation; separating a stream (V) containing MTBE and TBA from stream (IV) by means of distillation, c) MTBE cracking; cracking the stream (V) on a heterogenic catalyst in the gas phase, thus obtaining a stream (VI) which contains at least isobutene, methanol, MTBE, water, and optionally TBA, d) isobutene separation; separating the stream (VI) by means of distillation, thus obtaining a stream (VII) containing more than 50 mass % of the amounts of methanol, TBA, and water contained in stream (VI), and a stream (XVII) containing isobutene, e) water separation; separating, water from the stream (VII) to below 1 mass % by means of distillation, thus obtaining a stream (VIII), f) recirculating; complete or partial recirculation of the methanol-containing stream (VIII) into the MTBE synthesis. The invention further relates to a tube bundle device comprising the following elements: i) tube bundle, ii) tube bottom, iii) deflection plates, iv) inner shell, iv) pressure bearing outer shell, comprising at least one inlet and outlet, vi) shell chamber, comprising a fluid releasing or absorbing heat, characterized in that the inner shell is connected to the deflection plates attached over the length of the tube bundle without a gap, or with a small gap, and is connected to the tube bottom, wherein the fluid present in the shell chamber encloses the inner shell on both sides. | 06-07-2012 |
20120209044 | SELECTIVE ISOMERIZATION AND OLIGOMERIZATION OF OLEFIN FEEDSTOCKS FOR THE PRODUCTION OF TURBINE AND DIESEL FUELS - A process from converting alcohol feedstock to diesel/turbine fuels. | 08-16-2012 |
20120245400 | PRODUCING ALPHA-OLEFINS - Methods for producing alpha-olefins. The methods include selectively isomerizing an alpha-olefin to a mixture of beta-olefins and ethenolyzing at least a portion of the mixture of beta-olefins to an alpha-olefin. | 09-27-2012 |
20120271085 | METHOD FOR PRODUCING DISTILLATE FROM A HYDROCARBON FEED, COMPRISING ALCOHOL CONDENSATION - The invention relates to a method for converting a hydrocarbon feed containing C3-C10 olefins into a distillate, whereby the quantities of olefins having a chain length that is too short can be reduced in order to be exploited (typically C10 or even less) and the C10+ molecule yields can be increased, while controlling the exothermicity of the oligomerisation reactions. This effect is obtained by oligomerising the hydrocarbon feed in the presence of at least one part of the products resulting from the pre-conversion, by means of condensation, of light oxygen molecules (comprising at least one alcohol having at least two carbon atoms) which can originate from biomass. | 10-25-2012 |
20120271086 | PROCESS FOR REACTING ISO-ALKANE TO MAKE NAPHTHA AND MIDDLE DISTILLATE - A process for reacting an iso-pentane, comprising: | 10-25-2012 |
20120302808 | Conversion of Propane to Propylene - A process is disclosed that includes brominating a C | 11-29-2012 |
20120316374 | OLEFIN METATHESIS PROCESS USING A CATALYST CONTAINING TUNGSTEN FLUORINE BONDS - A process for the metathesis of olefins has been developed. The process comprises contacting a hydrocarbon feedstock with a catalyst at metathesis conditions. The catalyst comprises a tungsten compound, which contains at least one tungsten-fluoro bond, dispersed or grafted onto a support. A specific example of the catalyst is the compound WOF(CH | 12-13-2012 |
20130023709 | CATALYSTS FOR PETROCHEMICAL CATALYSIS - Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed. | 01-24-2013 |
20130102823 | METHOD FOR PRODUCING OLEFINS - The present invention provides a method to produce olefins by the decarboxylation of organic carboxylic acids in the presence of an organopalladium catalyst. | 04-25-2013 |
20130137909 | FLUIDIZED CATALYTIC CRACKING OF PARAFFINIC NAPHTHA IN A DOWNFLOW REACTOR - A process for producing a product stream consisting primarily of the lower olefins ethylene, propylene and butylenes, and of gasoline is provided. The process includes cracking a mixture of paraffinic naphtha feedstream and regenerated catalyst in a downflow reactor. The reaction product stream is separated from the spent catalyst and subsequently fractionated into individual product streams, while the spent catalyst is regenerated and recycled. | 05-30-2013 |
20130178676 | METHODS FOR PRODUCING LIGHT OLEFINS - Methods for producing light olefins are provided. An exemplary method includes providing an oxygenate compound capable of converting to light olefins in a catalytic reaction or to a clean reaction intermediate compound of the catalytic reaction and converting the oxygenate compound to the clean reaction intermediate compound in a chemical reaction. The chemical reaction produces a gas-phase product comprising the clean reaction intermediate compound, unconverted oxygenate, and a reaction byproduct. The method further includes cooling the gas-phase product to condense unconverted oxygenate and reaction byproduct while maintaining the clean reaction intermediate compound in a gas phase and separating the clean reaction intermediate compound, the unconverted oxygenate, and the reaction byproduct into a first stream including the clean reaction intermediate compound and a second stream including the unconverted oxygenate and the reaction byproduct. Still further, the method includes contacting the first stream with a catalyst configured for producing light olefins. | 07-11-2013 |
20130197288 | PROCESS FOR THE CONVERSION OF SYNTHESIS GAS TO OLEFINS - The present invention relates to a process for converting a gas mixture comprising CO and H | 08-01-2013 |
20130211165 | Hydrocarbon Pyrolysis Method - Disclosed is a pyrolysis reaction process. The process can be advantageously accomplished using a pyrolysis reactor that has a primary reaction zone comprised of bed packing having multiple passages through the bed packing and a secondary reaction zone having an open flow arrangement. The process includes a step of injecting a pyrolysis feed comprising a first hydrocarbon into the primary reaction zone to produce a primary pyrolysis product containing unsaturated hydrocarbon. A reactive feed comprising a second hydrocarbon is injected into the secondary reaction zone to mix with the primary pyrolysis product and produce a secondary pyrolysis product. | 08-15-2013 |
20130211166 | PROCESS FOR PREPARING BUTADIENE AND/OR BUTENES FROM N-BUTANE - The process for preparing butadiene from n-butane comprises the steps of
| 08-15-2013 |
20130211167 | CATALYTIC CONVERSION METHOD FOR IMPROVING PRODUCT DISTRIBUTION - The present invention relates to a catalytic conversion process for improving the product distribution, characterized in that a feedstock oil of good quality is contacted with a hot regenerated catalyst having a lower activity in a reactor to carry out a cracking reaction, the reaction product is separated from the spent catalyst to be regenerated, then the reaction product is fed into a separation system, and the spent catalyst to be regenerated is stripped, regenerated and recycled in the process. The isobutene content in the liquefied petroleum gas (LPG) produced by the process is increased by a factor of more than 30%, and the olefin content in the gasoline composition may be increased to more than 30 wt. %. The product distribution is optimized, and the yields of dry gas and coke are decreased, so as to sufficiently utilize the petroleum resources. | 08-15-2013 |
20130217938 | PROCESSES FOR CONVERTING HYDROGEN SULFIDE TO CARBON DISULFIDE - Processes for forming carbon disulfide from a gas stream containing hydrogen sulfide. A gaseous stream comprising lower molecular weight alkanes and hydrogen sulfide may be contacted with sufficient bromine at a temperature of from about 250° C. to about 530° C. to convert substantially all of said hydrogen sulfide to carbon disulfide. The gaseous stream may contain from about 0.001 to about 20 mol % hydrogen sulfide. The molar ratio of bromine to hydrogen sulfide may be about 2:1. | 08-22-2013 |
20130217939 | PROCESS FOR PRODUCING LIGHT OLEFINS BY USING A ZSM - 5 - BASED CATALYST - The present invention relates to a catalyst composition useful in a process for producing lower olefins from a oxygenate feedstream, a process for producing said catalyst composition and a process for producing lower olefins comprising contacting a oxygenate feedstream with the catalyst composition M | 08-22-2013 |
20130245348 | PRODUCTION OF PROPYLENE VIA SIMULTANEOUS DEHYDRATION AND SKELETAL ISOMERISATION OF ISOBUTANOL ON ACID CATALYSTS FOLLOWED BY METATHESIS - The present invention relates to a process for the production of propylene in which in a first step isobutanol is subjected to a simultaneous dehydration and skeletal isomerisation to make substantially corresponding olefins, having the same number of carbons and consisting essentially of a mixture of n-butenes and iso-butene and in a second step n-butenes are subjected to methathesis, said process comprising:
| 09-19-2013 |
20130253243 | METHODS FOR PRODUCING LINEAR PARAFFINS AND OLEFINS FROM NATURAL OILS - A method for producing a linear paraffin includes providing a natural oil in a feed stream, deoxygenating the natural oil to form a stream comprising paraffins, purifying the stream comprising paraffins to form a purified stream comprising paraffins, and separating a first fraction of paraffin product from the purified stream comprising paraffins. A method for producing a linear olefin includes providing a natural oil in a feed stream, deoxygenating the natural oil to form a stream comprising paraffins, dehydrogenating the stream comprising paraffins to form a stream comprising olefins, purifying the stream comprising olefins to form a purified stream comprising olefins, and separating a first fraction of olefin product from the purified stream comprising olefins. | 09-26-2013 |
20130261362 | COPROCESSING OF BIOFEEDS WITH BULK MIXED METAL CATALYSTS - This invention relates to methods for deoxygenation utilizing bulk metal catalysts feedstocks derived in part or whole from biological sources and alternatively, further hydrotreatment processing of such deoxygenated feedstocks. Feedstocks containing bio-derived feed components, and preferably additionally mineral oil feed components, are deoxygenated in a first stage or zone using a bulk metal catalyst. In additional embodiments, the deoxygenated feedstock effluent from the deoxygenation stage is further subjected to a hydrodesulfurization stage or zone. | 10-03-2013 |
20130267747 | MULTISTAGE CRACKING AND STRIPPING PROCESS IN AN FCC UNIT - The present invention relates to a multi staged cracking and stripping process that can be used in a fluidized-bed catalytic cracking process or FCC (fluidized catalytic cracking) process for maximizing the production of olefins, that is to say of C | 10-10-2013 |
20130281751 | METHODS FOR PRODUCING LINEAR PARAFFINS AND OLEFINS FROM NATURAL OILS - A method for producing a linear paraffin includes providing a natural oil in a feed stream, deoxygenating the natural oil to form a stream comprising paraffins, purifying the stream comprising paraffins to form a purified stream comprising paraffins, and separating a first fraction of paraffin product from the purified stream comprising paraffins. A method for producing a linear olefin includes providing a natural oil in a feed stream, deoxygenating the natural oil to form a stream comprising paraffins, dehydrogenating the stream comprising paraffins to form a stream comprising olefins, purifying the stream comprising olefins to form a purified stream comprising olefins, and separating a first fraction of olefin product from the purified stream comprising olefins. | 10-24-2013 |
20130281752 | METHODS FOR PRODUCING LINEAR PARAFFINS AND OLEFINS FROM NATURAL OILS - A method for producing a linear paraffin includes providing a natural oil in a feed stream, deoxygenating the natural oil to form a stream comprising paraffins, purifying the stream comprising paraffins to form a purified stream comprising paraffins, and separating a first fraction of paraffin product from the purified stream comprising paraffins. A method for producing a linear olefin includes providing a natural oil in a feed stream, deoxygenating the natural oil to form a stream comprising paraffins, dehydrogenating the stream comprising paraffins to form a stream comprising olefins, purifying the stream comprising olefins to form a purified stream comprising olefins, and separating a first fraction of olefin product from the purified stream comprising olefins. | 10-24-2013 |
20140121432 | STEAM CRACKING PROCESSES - The present disclosure provides a steam cracking process, comprising heating a liquid feed stock in a convection section of a cracking furnace and subsequently conveying the material to a radiant section of the cracking furnace for cracking reaction therein, wherein a monoolefin-containing stream is conveyed to the cracking furnace for cracking reaction through at least one of modes A to C. | 05-01-2014 |
20140142359 | PROCESS TO PRODUCE LINEAR PENTENES AND METATHESIS THEREOF - Mixed pentenes may be converted to propylene by feeding an alcohol, linear pentenes, and isopentenes to an etherification reactor. The alcohol and isopentenes may be reacted in the etherification reactor to convert isopentenes to tertiary amyl alkyl ether, which may be separated from the linear pentenes, recovered as a linear pentene fraction. The tertiary amyl alkyl ether may be fed to a decomposition reactor to convert at least a portion of the tertiary amyl alkyl ether to alcohol and isopentenes. The alcohol and isopentenes may then be separated to recover an isopentene fraction and an alcohol fraction. The isopentene fraction is then fed to a skeletal isomerization reactor to convert at least a portion of the isopentenes to linear pentenes, the effluent from which may be recycled to the etherification reactor. Ethylene and the linear pentene fraction may then be to a metathesis reactor to produce propylene. | 05-22-2014 |
20140155666 | PALLADIUM-CATALYZED DECARBONYLATION OF FATTY ACID ANHYDRIDES FOR THE PRODUCTION OF LINEAR ALPHA OLEFINS - The present invention is directed to methods of forming olefins, especially linear alpha olefins from fatty acids or anhydrides, each method comprising: contacting an amount of precursor carboxylic acid anhydride with a palladium catalyst comprising a bidentate bis-phosphine ligand in a reaction mixture so as to form an olefin in a product with the concomittant formation and removal of CO and water from the reaction mixture, either directly or indirectly, wherein the reaction mixture is maintained with a sub-stoichiometric excess of a sacrificial carboxylic acid anhydride, an organic acid, or both, said sub-stoichiometric excess being relative to the amount of the precursor carboxylic acid anhydride. The precursor carboxylic acid anhydride may be added to the reaction mixture directly or formed in situ by the reaction between at least one precursor carboxylic acid with a stoichiometric amount of the sacrificial acid anhydride. | 06-05-2014 |
20140187834 | PROCESS FOR EXTRACTING C4+ OLEFINS AND A PROCESS FOR CONVERTING OXYGENATES TO OLEFINS - The current invention provides a process for extracting C4+ olefins from a stream comprising C4+ olefins and C4+ paraffins, wherein an oxygenate, preferably methanol (MeOH) is used as extractant, and wherein the resulting extract phase comprising C4+ olefins and extractant is converted into olefins. Also provided is a process for converting oxygenates to olefins, wherein the oxygenate preferably comprises MeOH, wherein the oxygenate is used as extractant and wherein an extract phase comprising C4+ olefins and the extractant are converted into olefins. | 07-03-2014 |
20140187835 | PROCESS FOR THE PREPARATION OF AN OLEFINIC PRODUCT FROM AN OXYGENATE - The invention relates to a process for the preparation of ethylene and/or propylene comprising: (a) an oxygenate conversion step wherein a gaseous effluent comprising olefins is obtained; (b) subjecting the effluent to water removal and compression steps; (c) acid gas removal from the effluent obtained in step (b), wherein the gaseous effluent is treated with a caustic solution and a non-aqueous liquid stream comprising aromatic C7 | 07-03-2014 |
20140187836 | PROCESS FOR REMOVING OXYGENATE FROM AN OLEFIN STREAM - The present invention relates to a process for removing oxygenate from an olefin stream comprising oxygenate, comprising providing to an oxygenate recovery zone the olefin stream comprising oxygenate and a liquid solvent comprising: (a) butanol; (b)alkyl tert-alkyl ether; or (c) alkyl tert-alkyl ether and butanol, treating the olefin stream comprising oxygenate with the liquid solvent, and retrieving from the oxygenate recovery zone at least one oxygenate-depleted olefinic product stream comprising olefin and a spent liquid solvent comprising at least part of the oxygenate. | 07-03-2014 |
20140194659 | STAGED PROPYLENE PRODUCTION PROCESS - Processes for forming propylene are described herein. The processes generally include reacting a metathesis feed stream including butene with ethylene in the presence of a first metathesis catalyst via a first metathesis reaction to form a first metathesis product stream including propylene, ethylene, butene, and C | 07-10-2014 |
20140275680 | INTEGRATION OF HYDRO-DECHLORINATION AND HYDRO-REGENERATION - We provide an integrated process to produce alkylate gasoline, comprising:
| 09-18-2014 |
20140275681 | METHODS FOR TREATING A METATHESIS FEEDSTOCK WITH METAL ALKOXIDES - Various methods are provided for treating and reacting a metathesis feedstock. In one embodiment, the method includes providing a feedstock comprising a natural oil, chemically treating the feedstock with a metal alkoxide under conditions sufficient to diminish catalyst poisons in the feedstock, and, following the treating, combining a metathesis catalyst with the feedstock under conditions sufficient to metathesize the feedstock. | 09-18-2014 |
20140296596 | PROCESS FOR DEHYDRATION AND ISOMERIZATION OF ALCOHOLS USING A CATALYST BASED ON A MESOSTRUCTURED MATERIAL COMPRISING SILICON - This invention has as its object a process for simultaneous dehydration and skeletal isomerization of a feedstock that comprises at least one C | 10-02-2014 |
20140309468 | MANUFACTURE OF ETHYLENE - Ethylene is produced from ethane in two steps: first, ethane is oxychlorinated to ethyl chloride; and second, ethyl chloride from the first step is cracked to produce ethylene and hydrogen chloride. The process defined in claim 1 further including the step of recycling hydrogen chloride from the second step to the first (chlorination) step. | 10-16-2014 |
20140316178 | Process Stream Upgrading - The invention generally relates to processes for upgrading a process stream, such as those containing C | 10-23-2014 |
20140323783 | Coke Gasification on Catalytically Active Surfaces - A method and system for converting hydrocarbons into C | 10-30-2014 |
20140343336 | PROCESS FOR THE OXIDATIVE REGENERATION OF A DEACTIVATED CATALYST AND AN APPARATUS THEREFOR - The present invention relates to a process for the oxidative regeneration of a deactivated catalyst comprising providing a catalyst comprising molecular sieve in hydrogen form to a guard zone; passing a regeneration gas stream comprising oxidant through the guard zone to remove part of one or both of any alkali metal ion and alkaline earth metal ion from the regeneration gas stream, to provide a treated regeneration gas stream; providing deactivated catalyst comprising molecular sieve in a regeneration zone, said deactivated catalyst from one or both of an oxygenate to olefin process and an olefin cracking process; regenerating the deactivated catalyst in the regeneration zone with the treated regeneration gas stream to provide regenerated molecular sieve catalyst; wherein said catalyst in said guard zone is one or both of deactivated catalyst comprising molecular sieve in hydrogen form and regenerated catalyst comprising regenerated molecular sieve in hydrogen form. | 11-20-2014 |
20140357914 | NAPHTHA CRACKING - A process for increasing the yields of light olefins and the yields of aromatics from a hydrocarbon stream is presented. The process includes a first separation to direct the light components that are not reformable to a cracking unit, with the remainder passed to a second separation unit. The second separation unit extracts normal components from the hydrocarbon stream to pass to the cracking unit. The resulting hydrocarbon stream with reduced light ends and reduced normals is passed to a reforming unit. | 12-04-2014 |
20140378725 | PROCESS FOR HIGH TEMPERATURE REMOVAL OF TRACE CHLORIDE CONTAMINANTS IN A CATALYTIC DEHYDROGENATION PROCESS - A process for removal of trace chloride contaminants from a reactor effluent in a catalytic dehydrogenation process is described. The reactor effluent is compressed in a compressor to provide a compressed effluent. The compressed effluent is introduced from the compressor into a chloride treater. In the chloride treater, trace chloride contaminants in the compressed effluent are adsorbed to provide a treated effluent. The treated effluent is cooled in a cooler. | 12-25-2014 |
20150025284 | OXYGENATE REMOVAL FROM LIGHT HYDROCARBON PROCESSING - Processes for eliminating water and oxygenates from a light hydrocarbon processing system, wherein oxygenates are removed from a light hydrocarbon stream by adsorption of the oxygenates on a primary oxygenate adsorption unit to provide a deoxygenated hydrocarbon stream, the primary oxygenate adsorption unit is regenerated via a first regenerant stream to provide an oxygenated first regenerant stream, the oxygenated first regenerant stream is deoxygenated via a secondary oxygenate adsorption unit, and the secondary oxygenate adsorption unit is regenerated via a second regenerant stream to provide an oxygenated second regenerant stream for permanent removal from the system. | 01-22-2015 |
20150065770 | METHOD FOR SEPARATING OLEFINS WITH GENTLE CLEAVAGE - A process for producing olefins, in which a hydrocarbon-containing feed is fed into a cracking furnace where relatively long-chain hydrocarbons of the hydrocarbon-containing feed are cracked at least partly to form shorter-chain olefins, encompassing ethylene and propylene. Cracking gas ( | 03-05-2015 |
20150112107 | OXYGENATE-TO-OLEFINS PROCESS AND AN APPARATUS THEREFOR - The present invention relates to a process for the preparation of an olefinic product, such as one or both of ethylene and propylene, from an oxygenate feedstock, such as methanol, and an apparatus therefore, said process comprising: treating an effluent stream with a carbonyl compound absorbent stream comprising an aqueous solution of bisulphite having a pH in the range of from 4 to 8, to provide an olefinic product stream comprising olefin and a loaded carbonyl compound absorbent stream comprising an aqueous solution of at least one carbonyl adduct comprising one or both of C2+ aldehyde adduct and ketone adduct and optionally unreacted bisulphite, said liquid absorbent stream and loaded carbonyl compound absorbent stream in a carbonyl compound absorbent circuit separate from the effluent separation circuit. | 04-23-2015 |
20150119617 | Process for Converting Oxygenates to Olefins - A process for converting oxygenates to olefins comprising: a) contacting an oxygenate containing stream with a molecular sieve catalyst in an oxygenate to olefins conversion reactor under oxygenate to olefins conversion conditions to form an effluent comprising olefins; b) quenching the effluent by contacting with water; and c) contacting the quenched olefin stream with a molecular sieve to remove at least a portion of the water from the quenched olefin stream wherein the molecular sieve has a dimethyl ether adsorption capacity of less than 0.1 wt %. | 04-30-2015 |
20150133706 | METHODS OF PRODUCING JET FUEL FROM NATURAL OIL FEEDSTOCKS THROUGH OXYGEN-CLEAVED REACTIONS - Methods are provided for producing a jet fuel composition from a feedstock comprising a natural oil. The methods comprise reacting the feedstock with oxygen under conditions sufficient to form an oxygen-cleaved product. The methods further comprise hydrogenating the oxygen-cleaved product under conditions sufficient to form a jet fuel composition. | 05-14-2015 |
20150148575 | INCREASED CONVERSION OF RECYCLED OXYGENATES IN MTO - A process is presented for increasing the conversion efficiency of oxygenates to olefins. The conversion of oxygenates recycles unconverted oxygenates and oxygenate by-products to a second reactor unit. The present of oxygenate by-products decreases the efficiency of the methanol to olefins reaction, and passing recycled oxygenates to a second reactor unit maintains the methanol to olefins conversion efficiency while converting the by-products in a secondary zone. | 05-28-2015 |
20150291485 | PROCESS FOR DEHYDRATION OF ETHANOL INTO ETHYLENE USING PRETREATMENT OF THE FEEDSTOCK - The invention relates to a process for dehydration of an ethanol feedstock into ethylene comprising at least the stages:
| 10-15-2015 |
20150299068 | PROCESS FOR DEHYDRATION OF ETHANOL TO ETHYLENE AT LOW ENERGY CONSUMPTION - A process for dehydration of an ethanol feedstock to ethylene by:
| 10-22-2015 |
20150307411 | PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE - The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of providing an oxygenate feed comprising oxygenate and C4 olefins to a first reaction zone; contacting the oxygenate feed with a first zeolite-comprising catalyst and retrieving from the first reaction zone a first effluent stream comprising at least C2 to C5 olefins; separating the first effluent stream into at least: a first product stream comprising C2 and/or C3 olefins; a second fraction comprising C4 olefins; a third fraction comprising C5 olefins; and recycling at least part of the second fraction to the first reaction zone as part of the oxygenate feed; providing an olefinic feed comprising C5 olefins to a second reaction zone, wherein the olefinic feed comprises at least part of the third fraction; and contacting in the second reaction zone the olefinic feed with a second zeolite-comprising catalyst at a temperature in the range of from 500 to 700° C. and retrieving from the second reaction zone a second effluent stream comprising at least C2 to C3 olefins. | 10-29-2015 |
20160002542 | DECOMPOSITION OF ORGANIC CHLORIDE IN ALKYLATE USING METALS AND ALLOYS - Processes for decomposing organic chloride in a hydrocarbon stream may comprise contacting a hydrocarbon stream with a dechlorination element in a dechlorination zone under dechlorination conditions to provide a dechlorinated hydrocarbon product, wherein the dechlorination element may comprise a metal or metal alloy having a high surface area configuration. Such a dechlorination element may be disposed within one or more distillation columns and/or within a separate dechlorination vessel. | 01-07-2016 |
20160068452 | PROCESS AND PLANT FOR PRODUCING OLEFINS FROM OXYGENATES - A process for producing olefins from oxygenates can include the following steps: (i) heterogeneously catalyzed conversion of at least one oxygenate to a product stream containing C | 03-10-2016 |
20160097002 | THERMAL CRACKING OF CRUDES AND HEAVY FEEDS TO PRODUCE OLEFINS IN PYROLYSIS REACTOR - Systems and processes for efficiently cracking of hydrocarbon mixtures, such as mixtures including compounds having a normal boiling temperature of greater than 450° C., 500° C., or even greater than 550° C., such as whole crudes for example, are disclosed. | 04-07-2016 |
20160130509 | PROCESS FOR PRODUCING HYDROCARBONS - The present invention relates to a process for converting feedstock comprising materials of biological origin into hydrocarbons, said process comprising the steps where a) feedstock comprising at least one material of biological origin is subjected to purification treatment to obtain purified feedstock, and b) the purified feedstock is subjected to hydroprocessing in the presence of at least one hydrodeoxygenation catalyst, at least one hydrodewaxing catalyst and at least one hydrodearomatization catalyst to obtain a hydroprocessing product. | 05-12-2016 |
20160168045 | HIGH PRESSURE SWING FIXED-BED PROCESS WITH OPTIONAL ETHYLENE RECYCLE FOR HIGHLY SELECTIVE METHANOL TO OLEFINS CONVERSION | 06-16-2016 |
20170233664 | PROCESSES AND APPARATUSES FOR PRODUCTION OF OLEFINS | 08-17-2017 |