Class / Patent application number | Description | Number of patent applications / Date published |
518705000 | TREATMENT OF FEED OR RECYCLE STREAM | 49 |
20080306171 | Method to Start a Process for Producing Hydrocarbons from Synthesis Gas - Method to start a steady state process for producing normally gaseous, normally liquid and optionally normally solid hydrocarbons from synthesis gas, which process comprises the steps of: (i) providing the synthesis gas; (ii) catalytically converting the synthesis gas in one or more conversion reactors at an elevated temperature and a pressure to obtain the normally gaseous, normally liquid and optionally normally solid hydrocarbons; and (iii) using at least a portion of the gaseous hydrocarbons produced by step (ii) as a recycle stream to be reintroduced into conversion reactor(s) of step (ii); the method comprising admixing a hydrogen stream with the recycle stream of step (iii) prior to its reintroduction into conversion reactor(s) of step (ii), wherein as the activity of the catalyst converting the synthesis gas proceeds towards a steady state, the amount of recycle stream is reduced. | 12-11-2008 |
20090054538 | Chemical production processes, systems, and catalyst compositions - Chemical production processes are provided than can include exposing a reactant composition to a catalyst composition to form a product composition, with the reactant composition including a multihydric alcohol compound and product composition including a carbonyl compound. The catalyst composition can include one or more elements of groups 5 and 6 of the periodic table of elements. Catalyst compositions are provided that can include one or more of niobia, hydrated niobia, tungstic acid, phosphotungstic acid, and phosphomolybdic acid. | 02-26-2009 |
20090099269 | Removal of carbon dioxide from a gas stream - A process for the production of normally gaseous, normally liquid and optionally normally solid hydrocarbons from a light hydrocarbonaceous feed gas stream, which feed gas stream includes sulphur compounds and carbon dioxide, the process comprising the steps of: (i) removing at least most of the sulphur compounds from the feed gas stream by an aqueous amine process in one or more reactors, optionally followed by on or more further treatment processes; (ii) controlling where necessary the amount of carbon dioxide in the feed gas stream in step (i) so as to be in the range 0.25-2.0 v/v&, preferably 0.5-1.5 v/v %, of the processed feed stream; (iii) using the feed gas stream of step (ii) to provide synthesis gas; and (iv) catalytic converting the synthesis gas of step (iii) at an elevated temperature and pressure to obtain the normally gaseous, normally liquid and optionally normally solid hydrocarbons. | 04-16-2009 |
20090197979 | SLURRY BED LOOP REACTOR AND USE THEREOF - The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer ( | 08-06-2009 |
20090197980 | PROCESS FOR THE RUNNING OF A REACTOR SUITABLE FOR HETEROGENEOUS REACTIONS COMBINED WITH REACTIONS TAKING PLACE IN THREE-PHASE SYSTEM - Process for the running of a reactor in which reactions take place in multiphase systems, wherein a gaseous phase prevalently consisting of CO and H | 08-06-2009 |
20090221722 | Multiple Reactor Chemical Production System - The present invention is a multiple reaction set for the production of chemicals by equilibrium limited reactions utilizing plate-type or extended surface heat exchangers. The heat exchangers effectively cool the reaction products in order to condense the methanol contained within the reaction products for separation, and also to warm incoming feed reactants prior to entrance of the reactants into a reactor utilized for the production of methanol. The various reactors, heat exchangers, and separators can be formed as separated zones within the enclosed vessels, thereby eliminating the need for separately constructed reactors, heat exchangers, and separators. Multi-stream plate-type of extended surface heat exchangers can be utilized to allow efficient cooling and methanol separation. The multiple reaction set can also be used for the recovery of methanol from a waste or purge gas stream utilizing multiple reactors, multiple plate-type or extended surface heat exchangers and multiple separators as a substitute for or in conjunction with a conventional methanol synthesis loop. | 09-03-2009 |
20100069515 | MIXED ALCOHOL SYNTHESIS WITH ENHANCED CARBON VALUE USE - The present invention provides a method for simplifying manufacture of a mixed alcohol or mixed oxygenate product from synthesis gas. The mixed alcohol or mixed oxygenate product contains ethanol and other oxygenates with two or more carbon atoms per molecule. The method includes stripping a portion of carbon dioxide and inert gases contained in a mixed alcohol synthesis reaction product using a methanol-containing stream, such as one produced as part of the method, as a medium to absorb said carbon dioxide and inert gases and recycling light products and heavy products to one or more of synthesis gas generation, mixed alcohol synthesis and separation of desired mixed alcohol or mixed oxygenate products from other components of a mixed alcohol synthesis stream. The present invention also provides downstream processing of the mixed alcohol or mixed oxygenate product by subjecting the product to a dehydration step in order to convert at least ethanol, preferably at least ethanol and propanol, to their corresponding olefins (e.g. ethylene and propylene). | 03-18-2010 |
20100144906 | Method and system for handling slurries of varying liquid rates and solids content - A method and system for collecting a plurality of slurries containing solid particles of varying particle size distribution and amount and performing a classification and separation on the slurries is provided whereby a fines-rich stream and a stream containing substantially coarse particles is obtained. The method and system includes separating the fines from the slurry liquid and thickening the separated coarse particles in a settling zone for subsequent use. | 06-10-2010 |
20100222440 | Process for the Treatment of a Product Stream - The present invention relates to a process for the treatment of a product stream, more specifically of a product stream from an autothermal cracking process, said product stream comprising one or more olefins, hydrogen, carbon monoxide, carbon dioxide and one or more oxygenates, said process comprising contacting the product stream with at least one compound selected from those represented by formulas: (1) H | 09-02-2010 |
20100240779 | PROCESS FOR THE PREPARATION OF HYDROCARBONS FROM OXYGENATES - A process for the preparation of hydrocarbon products comprising the steps of a) providing a synthesis gas comprising hydrogen, carbon monoxide and carbon dioxide; (b) reacting at least part of the synthesis gas to an oxygenate mixture comprising methanol and dimethyl ether in presence of one or more catalysts which together catalyse a reaction of hydrogen and carbon monoxide to oxygenates at a pressure of at least 3 MPa; (c) withdrawing from step (b) a reaction mixture comprising amounts of methanol, dimethyl ether, carbon dioxide and water together with unreacted synthesis gas and cooling the reaction mixture to obtain a liquid phase with the amounts of methanol, dimethyl ether and water and simultaneously dissolving carbon dioxide in the liquid phase; (d) separating the carbon dioxide containing liquid phase from a remaining gaseous phase comprising hydrogen and carbon monoxide; (e) evaporating and reacting the liquid phase being withdrawn from step (d) in presence of a catalyst being active in the conversion of oxygenates to higher hydrocarbons and a tail gas comprising carbon dioxide; (f) separating tail gas from a liquid phase with the higher hydrocarbons; and wherein pressure employed in step (c) to step (f) is substantially the same as employed in step (b). | 09-23-2010 |
20100324156 | METHODS OF RECYCLING CARBON DIOXIDE TO THE GASIFICATION SYSTEM - Method of producing syngas in an IGCC system, comprising compressing and heating carbon dioxide-rich gas to produce heated compressed carbon dioxide-rich gas, mixing the heated compressed carbon dioxide-rich gas with oxygen and feedstock to form a feedstock mixture, subjecting the feedstock mixture to gasification to produce syngas, cooling the syngas in a radiant syngas cooler, contacting syngas cooled in the radiant syngas cooler with compressed carbon dioxide-rich gas to further cool the syngas, and removing an amount of carbon dioxide-rich gas from the product mixture and compressing the removed carbon dioxide-rich gas prior to mixing with oxygen and feedstock. | 12-23-2010 |
20110003901 | FT WATER TREATING AND RECOVERY - A process of using super critical water in a Fischer-Tropsch (FT) synthesis gas process to enhance carbon efficiency and/or process waste streams and/or provide for CO | 01-06-2011 |
20110021645 | PROCESS FOR THE PURIFICATION OF AN AQUEOUS STREAM COMING FROM THE FISCHER-TROPSCH REACTION - The present invention relates to a process for the purification of an aqueous stream coming from the Fischer-Tropsch reaction which comprises: feeding the aqueous stream containing organic by products of the reaction to a fractionating distillation column or to a stripping column; —condensation of the vaporized stream leaving the head of the column and the removal of a distillate enriched in the heaviest by-products; —feeding the partially purified aqueous stream leaving the bottom of the distillation column, at the head to one or more sensible contact exchangers; —sending a process gas in countercurrent to the tail of the exchanger at a temperature lower than that of the aqueous stream; —sending the process gas enriched in water and part of the residual organic product leaving the head of the exchanger to the Fischer-Tropsch synthesis plant of hydrocarbons; —sending the purified colder water leaving the exchanger directly to further treatment. | 01-27-2011 |
20110098367 | METHOD & APPARATUS FOR PROCESSING FISCHER-TROPSCH OFF-GAS - This invention concerns methods and apparatus for processing Fischer-Tropsch off-gas comprising the following steps: a) subjecting Fischer-Tropsch off-gas to at least a water gas shift reaction and partial CO | 04-28-2011 |
20110118366 | METHOD FOR OPERATING A FISCHER-TROPSCH SYNTHESIS - The invention relates to a method and a system for operating a Fischer-Tropsch synthesis, wherein a feed gas comprising CO and H | 05-19-2011 |
20110190403 | Hydrocarbon compound synthesis reaction unit and operating method thereof - A hydrocarbon compound synthesis reaction unit which synthesizes a hydrocarbon compound by a chemical reaction of a synthesis gas including a hydrogen and a carbon monoxide as the main components, and a slurry having a solid catalyst suspended in liquid hydrocarbons, the hydrocarbon compound synthesis reaction unit is provided with: a reactor which contains the slurry inside, into which the synthesis gas is introduced, and from which the gas after the reaction is discharged from the top thereof; an internal separation device provided inside the reactor to separate the catalyst and the synthesized liquid hydrocarbons in the slurry; and an external separation device provided outside the reactor to separate the catalyst and the liquid hydrocarbons in the slurry which is extracted from the reactor. | 08-04-2011 |
20110207836 | PROCESS FOR DECREASING OR ELIMINATING UNWANTED HYDROCARBON AND OXYGENATE PRODUCTS CAUSED BY FISHER TROPSCH SYNTHESIS REACTIONS IN A SYNGAS TREATMENT UNIT - The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a metal material selected from the group consisting of iron, nickel, cobalt, carbon steel or stainless steel and having deposited on the metal surfaces that will come in contact with the coldbox overhead gas stream an inert coating selected from the group consisting of silicon based materials, zinc based materials, tin based materials, chromium based materials, polymers, ceramics and mixtures thereof for heating up gas streams having a mixture of hydrogen and carbon monoxide and obtained from a front end purification unit/cold box unit. | 08-25-2011 |
20110281960 | METHOD OF SELECTIVELY REMOVING CATALYST FROM FISCHER-TROPSCH SYNTHETIC CRUDE OIL AND METHOD OF RECYCLING REMOVED CATALYST - A method of selectively removing a Fischer-Tropsch catalyst from a Fischer-Tropsch synthetic crude oil is provided, the method including the steps of extracting a slurry, containing a Fischer-Tropsch catalyst having magnetism and Fischer-Tropsch synthetic crude oil obtained by a Fischer-Tropsch synthesis reaction, from a Fischer-Tropsch synthesis reactor; separating a catalyst having a predetermined diameter or more from the slurry by means of a first solid-liquid separator; and separating a catalyst which is not be separated by means of the first solid-liquid separator from the slurry from which the catalyst having the predetermined diameter or more is removed, by means of a second solid-liquid separator. | 11-17-2011 |
20110313065 | METHOD FOR RECOVERING HYDROCARBON COMPOUNDS AND A HYDROCARBON RECOVERY APPARATUS FROM A GASEOUS BY-PRODUCT - There is provided a method for recovering hydrocarbon compounds from a gaseous by-products generated in the Fisher-Tropsch synthesis reaction, the method comprising a pressurizing step in which the gaseous by-products are pressurized, a cooling step in which the pressurized gaseous by-products are pressurized to liquefy hydrocarbon compounds in the gaseous by-products, and a separating step in which the hydrocarbon compounds liquefied in the cooling step are separated from the remaining gaseous by-products. | 12-22-2011 |
20120010306 | Process for removing sulphur-containing, nitrogen-containing and halogen-containing impurities contained in a synthesis gas - The invention relates to a process for finally removing sulphur-containing, nitrogen-containing and halogen-containing impurities contained in a synthesis gas, said process including:
| 01-12-2012 |
20120046370 | PROCESS FOR PRODUCING A PURIFIED SYNTHESIS GAS STREAM - A process for producing a purified synthesis gas stream from a feed synthesis gas stream comprising besides the main constituents carbon monoxide and hydrogen also hydrogen sulphide, HCN and/or COS, the process comprising the steps of: (a) contacting one part of the feed synthesis gas stream with a water gas shift catalyst in a shift reactor in the presence of water and/or steam to react at least part of the carbon monoxide to hydrogen and carbon dioxide, to obtain a shifted synthesis gas stream enriched in hydrogen and in carbon dioxide; (b) contacting another part of the feed gas stream with a hydrolysis catalyst in the presence of water to remove HCN and/or COS to obtain a hydrolysed synthesis gas stream depleted in HCN and/or COS; (c) removing H | 02-23-2012 |
20120108681 | Multiple Reactor Chemical Production System - The present invention is a multiple reaction set for the production of chemicals by equilibrium limited reactions utilizing plate-type or extended surface heat exchangers. The heat exchangers cool the reaction products to condense methanol within the reaction products for separation, and to warm incoming feed reactants prior to entrance of the reactants into a reactor utilized for methanol production. The various reactors, heat exchangers, and separators can be formed as separated zones within enclosed vessels, thereby eliminating the need for separately constructed reactors, heat exchangers, and separators. Multi-stream plate-type of extended surface heat exchangers can be utilized to allow efficient cooling and methanol separation. The multiple reaction set can also be used for the recovery of methanol from a waste or purge gas stream utilizing multiple reactors, multiple plate-type or extended surface heat exchangers and multiple separators as a substitute for or in conjunction with a conventional methanol synthesis loop. | 05-03-2012 |
20120129958 | METHOD AND PLANT FOR THE PRODUCTION OF METHANOL - A method for producing methanol from a synthesis gas containing hydrogen and carbon oxides with a high content of inert components includes passing the synthesis gas through a synthesis reactor so as to catalytically convert a part of the carbon oxides to methanol. The methanol is separated from the obtained mixture from the reactor. The mixture liberated from methanol is separated into a cycle stream and a purge stream. The cycle stream is recirculated so as to form a synthesis circle and combined with a fresh gas stream including hydrogen and carbon oxides before being charged into the synthesis reactor. The purge stream is supplied to a secondary reactor so as to catalytically convert a further part of the hydrogen and carbon oxides to methanol. Further methanol is separated the obtained mixture including synthesis gas, inert components and methanol vapor. | 05-24-2012 |
20120232174 | Method for Increasing the Yield of a Slurry Bed Reactor - Disclosed is a method for increasing the yield of a slurry bed reactor. The method provides a slurry bed reactor with a recycling unit or a replacing unit. An absorbing agent is fed into the slurry bed reactor. The absorbing agent is a substance that can react with at least one product of a primary reaction or at least one reactant of a side reaction. Then, the absorbing agent is transmitted into the recycling unit or the replacing unit. The recycling unit renews the absorbing agent and sends the renewed absorbing agent back into the slurry bed reactor for reuse. The replacing unit replaces the absorbing agent with new absorbing agent and sends the new absorbing agent into the slurry bed reactor for use. | 09-13-2012 |
20120277330 | PROCESS FOR PRODUCING TRANSPORTATION FUELS FROM SYNGAS - A process for producing transportation fuels, such as gasoline and diesel fuel, from syngas with a low H | 11-01-2012 |
20130005840 | Process for the Production of Methanol Including Two Membrane Separation Steps - Disclosed herein is a methanol production process that includes at least two membrane separation steps. Using the process of the invention, the efficiency of methanol production from syngas is increased by reducing the compression requirements of the process and/or improving the methanol product yield. As an additional advantage, the first membrane separation step generates a hydrogen-rich stream which can be sent for other uses. An additional benefit is that the process of the invention may debottleneck existing methanol plants if more syngas or carbon dioxide is available, allowing for feed of imported carbon dioxide into the synthesis loop. This is a way of sequestering carbon dioxide. | 01-03-2013 |
20130035406 | SYNTHESIS OF DME USING A FLUID PLURALIZED BED REACTOR - This invention discloses a method for making a dimethylether (DME) product from a synthesis gas (syngas) in the presence of a catalyst in a fluid pluralized bed reactor operating in the gas phase. The reactions generate a significant amount of heat and the heat management is balanced between supplying quench recycle syngas to the pluralized sections along the reactor and also by controlling the preheat temperature of the reactant streams. Gas phase fluidization of the catalyst is controlled so that the pluralized reactive zones are maintained in a backmix configuration. | 02-07-2013 |
20130116346 | CONVERSION OF ORGANOSULFUR COMPOUNDS TO HYDROGEN SULFIDE IN MIXED ALCOHOL SYNTHESIS REACTOR EFFLUENT - Plants and methods are presented in which organosulfur compounds in a mixed alcohol synthesis reactor effluent are converted into hydrogen sulfide (H | 05-09-2013 |
20130116347 | SYSTEMS AND METHODS FOR THE USE OF FISCHER-TROPSCH TAIL GAS IN A GAS TO LIQUID PROCESS - The present disclosure provides a Fischer-Tropsch tail gas recycling system, including: a Fischer-Tropsch reactor providing a source of tail gas; a first preheater for preheating the tail gas to between about 200 and 300 degrees C.; a hydrogenator for hydrogenating the tail gas; an expansion device for reducing the pressure of the tail gas to between about 2.5 and 5 bar; a second preheater for preheating a feed gas comprising the tail gas and steam to between about 500 and 600 degrees C.; and a catalytic reformer for reforming the feed gas in the presence of a catalyst, wherein the catalytic reformer operates at about 2 bar and about 1000 degrees C., for example. Optionally, CO2 and/or natural gas are also added to the tail gas and/or steam to form the feed gas. | 05-09-2013 |
20130116348 | FISCHER-TROPSCH SYNTHESIS PROCESS AND SYSTEM - The present invention relates to a Fischer-Tropsch synthesis process and system. The process comprises: a) introducing a feedstock gas containing CO and H | 05-09-2013 |
20130123377 | PROCESS FOR THE PREPARATION OF ETHANOL AND HIGHER ALCOHOLS - Process for the preparation of ethanol and/or higher alcohols comprising the steps of: (a) providing an alcohol synthesis gas comprising carbon monoxide and hydrogen in a molar ratio of higher than 0.5; (c) adding an amount of methanol and/or higher alcohols to the synthesis gas to obtain a synthesis gas mixture. (d) converting the synthesis gas mixture from step (c) in presence of one or more catalysts catalysing the conversion of the synthesis gas mixture into a ethanol and/or higher alcohols containing product; and (e) withdrawing the product from step (d), wherein the synthesis gas is purified by removing iron and nickel carbonyl compounds prior or after the addition methanol and/or higher alcohols to the synthesis gas and optionally (I) cooling the withdrawn product in step (e); and (g) contacting the cooled product with a hydrogenation catalyst. | 05-16-2013 |
20130178545 | METHOD FOR PRODUCING HYDROCARBONS WITH CONTINUOUS CHARGING OF THE CATALYST - The present invention relates to a method for the continuous production of hydrocarbons from synthesis gas in the presence of a catalyst comprising a synthesis step in which a synthesis gas is reacted in the presence of a catalyst in a Fischer-Tropsch synthesis reactor ( | 07-11-2013 |
20130178546 | METHOD FOR PRODUCING SYNTHETIC NATURAL GAS - Process for producing synthetic natural gas (SNG) which is provided in an energy-efficient way at the inlet pressure into a downstream pipeline system. For this purpose, a synthesis gas containing carbon oxides and hydrogen is converted into a product gas rich in methane by multi-stage catalytic methanation in a main reaction zone and a post-reaction zone, wherein the adjustment of the target pressure is effected by compression before the main reaction zone and/or before or in the post-reaction zone. | 07-11-2013 |
20130203872 | Process and Plant for the Production of Methanol with Isothermal Catalytic Beds - A process for the synthesis of methanol, comprising the steps of reforming a hydrocarbon source obtaining a make-up gas feed ( | 08-08-2013 |
20130210938 | PROCESS FOR THE PRODUCTION OF SUBSTITUTE NATURAL GAS - In a process for the production of substitute natural gas, a feed gas is provided to a first and/or second and/or subsequent bulk methanator. The feed gas is subjected to methanation in the presence of a suitable catalyst. An at least partially reacted stream from the first bulk methanator is removed and supplied to the second and/or subsequent bulk methanator where it is subjected to further methanation. A product stream from the final bulk methanator is passed to a trim methanator train where it is subjected to further methanation. A recycle stream is removed downstream of the first, second or subsequent bulk methanator, and, in any order, passed through a compressor, subjected to cooling and then supplied to a trim and/or recycle methanator for further methanation before being recycled to the first and/or second and/or subsequent methanator. | 08-15-2013 |
20130237617 | PROCESS FOR PRODUCING A METHANE-CONTAINING GAS FROM SYNTHESIS GAS AND METHANE PRODUCTION PLANT FOR CARRYING OUT THE PROCESS - The invention relates to a process for producing a methane-containing gas from synthesis gas, wherein a synthesis gas containing carbon monoxide and hydrogen is fed for methanation to a reactor system ( | 09-12-2013 |
20140005285 | Processes For The Production of Methanol Using Sweep-Based Membrane Separation Steps | 01-02-2014 |
20140031438 | METHOD AND SYSTEM FOR PRODUCING METHANOL FROM INERT-RICH SYNGAS - A method for producing methanol from inert-rich syngas includes installing a catalytic pre-reactor is upstream of the single or mufti-stage synthesis loop, a first part of the syngas being converted to methanol in the catalytic pre-reactor. Furthermore, an inert gas separation stage, for example a pressure swing adsorption system or a membrane system, is connected downstream of the synthesis loop, whereby a hydrogen-enriched syngas stream can be returned to the synthesis loop. In the processing of methane-rich syngas, the inert gas separation stage may also comprise an autothermal reformer in which methane is converted to carbon oxides and hydrogen, which are also returned into the synthesis loop. | 01-30-2014 |
20140066527 | Synthesis Gas Reaction and Processing System - A process wherein synthesis gas is reacted to produce desired products, such as alcohols, and wherein by-products, such as methane, are reformed to provide hydrogen and carbon monoxide that is recycled to the feed of synthesis gas. The process also may provide for the recycle of unreacted hydrogen and unreacted carbon monoxide to the feed of synthesis gas. | 03-06-2014 |
20140100295 | PROCESS AND SYSTEM FOR PRODUCING SYNTHETIC CRUDE OIL FROM OFFSHORE PRODUCED FLUIDS CONTAINING HIGH CO2 CONTENT - A system and process for producing synthetic crude oil from produced fluids of an oil well is disclosed. The system comprises a separation plant for producing an associated gas stream from produced fluids a membrane unit comprising a plurality of polymer membranes to provide a CO | 04-10-2014 |
20140135410 | HYDROCARBON SYNTHESIS REACTION APPARATUS, START-UP PROCESS THEREOF, AND HYDROCARBON SYNTHESIS REACTION SYSTEM - The hydrocarbon synthesis reaction apparatus is provided with a synthesis gas supply line in which a synthesis gas is compressed and supplied by a first compressor, a reactor configured to accommodate a catalyst slurry, a gas-liquid separator configured to separate an unreacted synthesis gas and hydrocarbons discharged from the reactor into a gas and a liquid, a first recycle line in which the unreacted synthesis gas after separation into a gas and a liquid is compressed and recycled into the reactor by a second compressor, and a second recycle line configured to recycle a residual unreacted synthesis gas after separation into a gas and a liquid into the inlet side of the first compressor at the time of start-up operation when the synthesis gas is gradually increased in the amount to be introduced. | 05-15-2014 |
20140142205 | Fischer-Tropsch Process for Producing Hydrocarbons from Biogas - A Fischer-Tropsch process for producing hydrocarbons from synthesis gas which originates e.g. from biomass gasification, using membrane separators. In the process, an input stream which comprises hydrogen, carbon monoxide as well as further gases and/or vapours is initially fed to a first membrane stage which comprises a steam-selective and carbon dioxide-selective membrane and through which at least some of the steam present in the input stream and some of the carbon dioxide present in the input stream are separated from the input stream to form a permeate stream of the first membrane stage comprising steam and carbon dioxide and a retentate stream of the first membrane stage containing hydrogen and carbon monoxide. | 05-22-2014 |
20140316016 | Conversion of Carbon Dioxide to Hydrocarbons Via Hydrogenation - Carbon dioxide conversion processes are described for the conversion of carbon dioxide via hydrogenation to hydrocarbons. The process utilizes an initial feed of carbon monoxide and hydrogen converted under Fischer Tropsch conditions to hydrocarbons followed by subsequent displacement of the carbon monoxide in the reactor feed with carbon dioxide, which is then converted to carbon monoxide under reverse water gas shift conditions and the initial carbon monoxide feed being terminated once the reverse water gas shift conversion of carbon dioxide. After the optimum reaction conditions are established the feed of carbon monoxide may be withdrawn and any required carbon monoxide provided via reactor effluent recycle. The process provides for enhanced catalyst performance and life. | 10-23-2014 |
20150018437 | FISCHER-TROPSCH SYNTHESIS - A process ( | 01-15-2015 |
20150045460 | PROCESS FOR SYNTHESIS OF ALCOHOLS - Process for the catalytic production of alcohol products, wherein by-products comprising ketone, aldehyde and ester compounds contained in the alcohol product are subjected to hydrogenation with a hydrogen-containing purge gas. | 02-12-2015 |
20150057378 | CATALYSTS - A method of preparing a modified catalyst support comprises contacting a catalyst support material with a modifying component precursor in an impregnating liquid medium. The impregnating liquid medium comprises a mixture of water and an organic liquid solvent for the modifying component precursor. The mixture contains less than 17% by volume water based on the total volume of the impregnating liquid medium. The modifying component precursor comprises a compound of a modifying component selected from the group consisting of Si, Zr, Co, Ti, Cu, Zn, Mn, Ba, Ni, Al, Fe, V, Hf, Th, Ce, Ta, W, La and mixtures of two or more thereof. A modifying component containing catalyst support material is thus obtained. Optionally, the modifying component containing catalyst support material is calcined at a temperature above 100° C. to obtain a modified catalyst support. | 02-26-2015 |
20150099814 | METHOD FOR PREPARING LIQUID HYDROCARBONS FROM SYNGAS - A method for preparing a liquid hydrocarbon from syngas. The method includes: 1) mixing crude syngas from a biomass gasifier and a hydrogen-rich gas to yield a mixed gas; 2) dehydrating and decarbonizing the mixed gas for removal of moisture, carbon dioxide, and impurities, to yield a fine syngas; 3) introducing the fine syngas to a Fischer-Tropsch synthesis device in the presence of a catalyst, controlling a reaction temperature of the Fischer-Tropsch synthesis at between 150 and 300° C. and a reaction pressure of between 2 and 4 MPa (A), to yield a liquid hydrocarbon and water which is discharged out of the Fischer-Tropsch synthesis device; and 4) returning 70-95 vol. % of exhaust gases from the Fischer-Tropsch synthesis device to step 3) to mix with the fine syngas, and introducing the resulting mixed gas to the Fischer-Tropsch synthesis device. | 04-09-2015 |
20150328577 | METHOD FOR PROCESSING FISCHER-TROPSCH OFF-GAS - This invention concerns a method for recovering carbon monoxide and carbon dioxide from Fischer-Tropsch off-gas by feeding Fischer-Tropsch off-gas through a column comprising an adsorbent bed, and discharging effluent, optionally rinsing the column and the adsorbent bed by feeding carbon dioxide and discharging effluent until at least 60% of the carbon monoxide that was present in the bed is discharged, pressurizing the column and adsorbent bed with carbon dioxide, rinsing the column and the adsorbent bed by feeding carbon dioxide, until at least 60% of the methane and optionally an amount equal to at least 50% of the carbon dioxide present at the commencement of this rinsing step is discharged, rinsing the column and adsorbent bed by feeding a mixture of hydrogen and nitrogen, pressurizing the column and adsorbent bed by feeding a mixture of hydrogen and nitrogen. With this method a feed comprising at least 50 vol % carbon monoxide can be produced. Furthermore, methane and carbon dioxide at a high pressure can be recovered from the Fischer-Tropsch gas. This can be fed to a gasifier or a reformer. In a preferred embodiment a gas comprising at least 80 vol % hydrogen is produced as well. | 11-19-2015 |
20150329438 | ETHYLENE-TO-LIQUIDS SYSTEMS AND METHODS - Integrated systems are provided for the production of higher hydrocarbon compositions, for example liquid hydrocarbon compositions, from methane using an oxidative coupling of methane system to convert methane to ethylene, followed by conversion of ethylene to selectable higher hydrocarbon products. Integrated systems and processes are provided that process methane through to these higher hydrocarbon products. | 11-19-2015 |