Class / Patent application number | Description | Number of patent applications / Date published |
585002000 | With nonhydrocarbon additive | 66 |
20110178346 | HYDROCARBON COMPOSITION - A hydrocarbon composition is provided containing:
| 07-21-2011 |
20120302805 | FEED NOZZLE ASSEMBLY - The present subject matter relates to a feed nozzle assembly | 11-29-2012 |
20120316369 | SYNERGISTIC COMBINATION FOR INHIIBITING POLYMERIZATION OF VINYL MONOMERS - The present invention provides a method for inhibiting unwanted polymerization of reactive monomers within a liquid. The method comprises the combined usage of a quinone methide with a quinone diimide to the liquid monomer. This combination has an unexpected synergistic effect. Thus, in some ratios, the combination results in practically 100% inhibition. | 12-13-2012 |
20130012744 | Reduced Puffing Needle Coke From Coal Tar Distillate - A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures. | 01-10-2013 |
20130131405 | LIQUID MOLDING RESIN WITH NONSWELLING MICA - A liquid molding resin component for a reaction injection molding process includes a liquid resin reaction monomer including metathesis polymerizable cycloolefin and a plurality of nonswelling mica. The plurality of nonswelling mica have an average particle size in a range of about 35 micro m to about 500 micro m and have a bulk density in a range of about 0.10 g/ml to about 0.27 g/ml. Further, a liquid resin component system for a reaction injection molding process includes a plurality of liquid resin components, at least one of which includes a catalyst, at least one of which includes an activator, and at least one of which includes a plurality of nonswelling mica having an average particle size in a range of about 35 micro m to about 500 micro m and having a bulk density in a range of about 0.10 g/ml to 0.27 g/ml. | 05-23-2013 |
20130190542 | HIGH SURFACE AREA CARBON AND PROCESS FOR ITS PRODUCTION - Activated carbon materials and methods of producing and using activated carbon materials are provided. In particular, biomass-derived activated carbon materials and processes of producing the activated carbon materials with prespecified surface areas and pore size distributions are provided. Activated carbon materials with preselected high specific surface areas, porosities, sub-nm (<1 nm) pore volumes, and supra-nm (1-5 nm) pore volumes may be achieved by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process. | 07-25-2013 |
20130204053 | METHODS AND COMPOSITIONS FOR STYRENE INHIBITION VIA IN SITU GENERATION OF QUINONE METHIDES - Methods and compositions are provided for inhibiting the polymerization of a vinyl aromatic monomer, such as styrene monomer, during elevated temperature processing or distillation thereof or during storage or shipment of polymer containing product. The compositions include a combination of a hydroxybenzyl alcohol (1) and a dehydration catalyst (2). The combination is added to a vinyl aromatic monomer. Typically, the hydroxybenzyl alcohol is dehydrated in the styrene solution by the use of a strong acid catalyst acting as the dehydration catalyst, and the resultant reaction product is a quinone methide styrene inhibitor. | 08-08-2013 |
20130211158 | HIGH SURFACE AREA CARBON AND PROCESS FOR ITS PRODUCTION - Activated carbon materials and methods of producing and using activated carbon materials are provided. In particular, biomass-derived activated carbon materials and processes of producing the activated carbon materials with prespecified surface areas and pore size distributions are provided. Activated carbon materials with preselected high specific surface areas, porosities, sub-nm (<1 nm) pore volumes, and supra-nm (1-5 nm) pore volumes may be achieved by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process. | 08-15-2013 |
20140235908 | SWITCHABLE HYDROPHILICITY SOLVENTS AND METHODS OF USE THEREOF - A solvent that reversibly converts from a hydrophobic liquid form to hydrophilic liquid form upon contact with water and a selected trigger, e.g., contact with CO | 08-21-2014 |
20140309465 | HYDROPROCESSING INITIALIZING PROCESS AND APPARATUS RELATING THERETO - One exemplary embodiment can be a process for initializing hydroprocessing. Generally, the process can include providing a hydrocarbon feed to a hydrotreating zone within which the hydrotreating temperature is catalytically limited, passing an effluent from the hydrotreating zone to a hydrocracking zone, and adding a gas to the effluent that has a higher temperature than the effluent. Thus, the temperature of the effluent may be raised, facilitating hydrocracking reactions within the hydrocracking zone. | 10-16-2014 |
20150119610 | STORAGE AND STABILIZATION OF ACETYLENE - A carbon adsorbent adapted for adsorptive storage and subsequent desorptive release of a decomposition-susceptible gas is described. Such carbon adsorbent comprises porosity in which mesopore volume is less than 0.25 cm | 04-30-2015 |
585003000 | O containing | 55 |
20090221860 | TRANSPORT OF ETHYNE IN FORM OF A-ALKYNOLS AS ETHYNE PRECURSORS - The present invention relates to a new method for a safe transport of ethyne in form of α-alkynols as precursors for ethyne. The new method comprises three steps. In a first step the synthesis of the α-alkynol(s) is performed by reacting ethyne with (a) carbonyl compound(s). The second step comprises the transport of the resulting α-alkynol(s) in a safe manner, whereas the safety requirements for this transport are not as high as for ethyne because α-alkynol(s) are normally classified for transportation as hazardous class 3. In the third step the α-alkynol(s) can be cleaved and the ethyne and the carbonyl compound(s) can be obtained in the cleavage reaction and can be separated to yield pure products for further applications. | 09-03-2009 |
20090259080 | Processes for the Separation of Methane from a Gas Stream - Processes for the catalytic conversion of a carbonaceous composition into a gas stream comprising methane are provided. In addition, the processes provide for the generation of a hydrogen-enriched gas stream and, optionally, a carbon monoxide-enriched gas stream, which can be mixed or used separately as an energy source for subsequent catalytic gasification processes. | 10-15-2009 |
20110112343 | LITHIUM-BASED METAL ORGANIC FRAMEWORKS - The present invention relates to a porous metal organic framework comprising at least one first organic compound and ions of at least one metal, with the skeleton of the framework being formed at least partly by the at least one first organic compound coordinating at least partly in a bidentate fashion to at least two ions of the at least one metal, where the at least one metal is lithium and the at least one first compound is derived from formic acid or acetic acid. | 05-12-2011 |
20110172473 | Additives to Enhance Metal Removal in Refinery Desalting Processes - It has been discovered that metals can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains a demulsifier (for instance, an oxyalkylated alkyl resin and/or a crosslinked polypropylene glycol), a surfactant, a diketone and a solvent (for instance an aromatic solvent). The method may also include introducing a hydroxyl carboxylic acid and/or at least one mineral acid to reduce the pH of the desalter wash water. The method permits transfer of metals into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil emulsions, and in removing iron therefrom. | 07-14-2011 |
20110319682 | Gas Hydrate Inhibitor and Method of Inhibiting Gas Hydrate Formation - The present invention relates to an ionic liquid compound that inhibits a formation of a gas hydrate. The compound of the present invention changes an equilibrium temperature and pressure of a gas hydrate in small quantity into a lower temperature and/or a higher pressure, and simultaneously retards the formation of the gas hydrate under the same environment. Thus, the compound of the present invention is used in oil and natural gas industries to effectively inhibit or delay the formation of the gas hydrate under the condition having a low temperature and a high pressure. | 12-29-2011 |
20130035527 | ACETYLENE STORAGE USING METAL-ORGANIC FRAMEWORKS WITH OPEN METAL SITES - This invention provides, but is not limited to, methods of using metal-organic frameworks (MOFs) with open metal sites for acetylene storage. Also provided are compositions and materials comprising MOFs with open metal sites and acetylene, e.g., an acetylene storage material comprising HKUST-1 and acetylene. | 02-07-2013 |
20130102816 | METHOD FOR REDUCING THE VISCOSITY OF VISCOUS FLUIDS - A viscous fluid, such as heavy crude oil which is too viscous to enable it to be pumped from a flowing phase of a reservoir into and along a pipeline for delivery to a refinery or other storage facility, may be contacted with a formulation to reduce its viscosity. The formulation comprises a polymeric material AA which includes —O— moieties pendent from a polymeric backbone thereof and said material is optionally cross-linked. In one embodiment, the formulation may comprise polyvinyl alcohol. In an alternative embodiment, the formulation may comprise a cross-linked polymeric material, such as cross-linked polyvinyl alcohol. After the viscous composition has been transported to a desired location, it may be separated from the other components. | 04-25-2013 |
20130123552 | AROMATIZATION OR DEHYDROCYCLIZATION OF N-ALKANES USING SOLUBLE TRANSITION METAL COMPLEXES - The invention provides methods and compositions useful for synthesizing alkylaromatics from an n-alkanes. | 05-16-2013 |
20130165706 | METHODS FOR SUPPRESSING ISOMERIZATION OF OLEFIN METATHESIS PRODUCTS - A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent to a mixture that includes the olefin metathesis product and residual metathesis catalyst from the metathesis reaction under conditions that are sufficient to passivate at least a portion of the residual metathesis catalyst. The isomerization suppression agent is phosphorous acid, a phosphorous acid ester, phosphinic acid, a phosphinic acid ester or combinations thereof. Methods of refining natural oils are described. | 06-27-2013 |
20130165707 | METHODS FOR SUPPRESSING ISOMERIZATION OF OLEFIN METATHESIS PRODUCTS - A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent to a mixture that includes the olefin metathesis product and residual metathesis catalyst from the metathesis reaction under conditions that are sufficient to passivate at least a portion of the residual metathesis catalyst. The isomerization suppression agent includes (i) a salt and/or an ester of a phosphorous oxo acid, and/or (ii) a derivative of the phosphorous oxo acid in which at least one P—H bond has been replaced by a P—C bond, and/or (iii) a salt and/or an ester of the derivative. Methods of refining natural oils are described. | 06-27-2013 |
20130217930 | Use of Self-Crosslinked Siloxanes for the Defoaming of Liquid Hydrocarbons - The present invention relates to the use of compositions comprising the following components: A, a polymer obtainable through hydrosilylation of a siloxane having SiH functions and having vinyl functions with another unsaturated compound, and D, platinum-group-metal atoms or platinum-group-metal ions, as antifoam for hydrocarbons, and also for suppressing or reducing the formation of foam or for the destabilization of foam. | 08-22-2013 |
20130289320 | Methods for Evaluating Corrosivity of Crude Oil Feedstocks - A method for determining corrosiveness of naphthenic acid in a crude oil feedstock is provided. The method includes the steps of providing a crude oil feedstock containing naphthenic acid; contacting the crude oil feedstock with iron for a period of time at a sufficient temperature for the iron to react with the naphthenic acid, forming iron salts. Under sufficiently high temperatures, at least a portion of the iron salts decompose to form ketone, which can be quantified. Measurements of the ketone can be used to correlate with the amount of iron lost from corrosion given a certain level of naphthenic acid present, giving a measure of the corrosivity of crude oil feedstock. | 10-31-2013 |
20130296618 | Nano-carbon Antifoulant Materials - A carbon-based additive may be added to a base fluid to form a fluid composition. The fluid composition may inhibit fouling of the base fluid by any fouling-causing components that may be present in the base fluid where the base fluid is an aqueous fluid, a non-aqueous fluid, and combinations thereof. A carbon-based additive may include solid nanoparticles, nanotubes, graphene, graphene oxide, nanoribbons, nanosheets, and combinations thereof. The carbon-based additive may be present in the fluid in an effective amount to inhibit fouling of the fluid by the fouling-causing components, particularly asphaltenes in a non-limiting example. | 11-07-2013 |
20140213832 | Stable Spherical, Porous Metal-Organic Framework Shaped Bodies For Gas Storage And Gas Separation - The present invention relates to a method for preparing a MOF shaped body in the form of spheres, MOF shaped bodies in the form of spheres and a method of uptake of at least one substance for the purposes of its storage, separation, controlled release, chemical reaction or as support utilizing MOF shaped bodies in the form of spheres. | 07-31-2014 |
20140275663 | METHODS AND SYSTEMS FOR PREDICTING A NEED FOR INTRODUCING ANTI-FOULING ADDITIVES TO A HYDROCARBON STREAM TO REDUCE FOULING OF CRUDE HYDROCARBON REFINERY COMPONENTS - Method and system for predicting a need for introducing anti-fouling additives to a hydrocarbon stream in a hydrocarbon refinery. The method comprises characterizing whether the hydrocarbon stream is a non-high solvency dispersive power (“HSDP”) crude and performing at least one of determining whether the hydrocarbon stream is subject to filterable solids levels greater than about 100 wppm or classifying whether the hydrocarbon stream has an expected low flow velocity during normal operating conditions within the refinery. The method further comprises indicating, using a processor, that anti-fouling additives are recommended if the hydrocarbon stream is characterized to be a non-HSDP crude and either the hydrocarbon stream is determined to be subject to filterable solids levels greater than about 100 wppm or the hydrocarbon stream is classified as having expected low flow within a heat exchanger of the refinery. | 09-18-2014 |
20140330052 | Apparatus and Method for Processing any Fluid or Mixture of Fluids or any Gas or Mixture of Gases such as Air, and in Particular, a Mixture of Fluid or Gaseous Hydrocarbons with Air - An apparatus for improving the combustion of a mixture of fluid or gaseous hydrocarbon with combustion air comprising,
| 11-06-2014 |
20140330053 | Hydroquinone Compounds for Inhibiting Monomer Polymerization - The polymerization of monomers may be at least partially reduced or inhibited by introducing an effective amount of an additive. The additive may be or include at least one hydroquinone, such as but not limited to, 2,6-di-tert-butyl hydroquinone, 2,5 di-tert-butyl hydroquinone, 3,5 di-tert-butyl hydroquinone, 3,5 di-methyl hydroquinone, 3,6 di-tert-butyl hydroquinone, and combinations thereof. The polymerizable monomers may be or include, but are not limited to styrene, butadiene, isoprene, acrylic acid, acrylonitrile, vinyl acetate, and combinations thereof. | 11-06-2014 |
20150112105 | ASSESSMENT METHOD FOR HYDRATE INHIBITORS AND FORMULATION OF GAS HYDRATE INHIBITORS - A gas hydrate inhibitor composition including an aqueous solution of anthraquinones. Methods of making and using the inhibitor are also provided, as well as a method of evaluating effectiveness of an inhibitor using THF. | 04-23-2015 |
20160032200 | POLYMERIC COMPOSITIONS AS POUR POINT DEPRESSANTS FOR CRUDE OILS - Polymeric compositions obtainable by free-radical polymerization of at least two different alkyl (meth)acrylates in the presence of at least one ethylene-vinyl ester copolymer, the alkyl (meth)acrylates used being a mixture comprising alkyl (meth)acrylates having linear C | 02-04-2016 |
20160102267 | CRUDE OIL FRICTION REDUCER - A crude oil friction reducer is disclosed. The friction reducer includes water soluble anionic surfactants as active components and non-aromatic solvents. The water soluble anionic surfactants include anionic sulfonate surfactant and an anionic sulfate surfactant, such as anionic sodium sulfate surfactant, dissolved in an aqueous chelating solution. The friction reducer may also include a pH adjuster. The friction reducer is used with heavy and extra heavy crude oil. | 04-14-2016 |
20160200988 | REDUCED FOAM PETROLEUM COMPOSITION | 07-14-2016 |
20160376515 | SYSTEMS AND METHODS FOR GAS HYDRATE SLURRY FORMATION - Gas hydrate slurry formation systems are provided. The gas hydrate slurry formation system includes a cavitation chamber configured to receive a fluid and a cavitation device placed within the cavitation chamber. The cavitation device is configured to form a plurality of bubbles within the fluid in the cavitation chamber. The gas hydrate slurry formation system also includes a gas inlet configured to introduce a gas within the cavitation chamber such that the gas is entrained in the plurality of bubbles to form a plurality of gas—entrained bubbles. The plurality of gas-entrained bubbles implode within the cavitation chamber to form a gas hydrate slurry. | 12-29-2016 |
20190144767 | USE OF SILOXANE POLYMERS FOR VAPOR PRESSURE REDUCTION OF PROCESSED CRUDE OIL | 05-16-2019 |
585004000 | And N containing | 32 |
20120078021 | ANTI-AGGLOMERATE GAS HYDRATE INHIBITORS FOR USE IN PETROLEUM AND NATURAL GAS SYSTEMS - A method of inhibiting gas hydrate formation in petroleum and natural gas production systems through the use of low dosage hydrate inhibitors which include reaction products of non-halide-containing inorganic acids, organic acids, and organic amines. The use of these non-halide-containing reaction products rather than chloride containing acids or alkylating agents avoids corrosion and stress cracking caused by residual inorganic chloride and other inorganic, halide-containing acids. The anti-agglomerate compositions can be administered continuously to effectively inhibit gas hydrate formation. In preferred embodiments, the anti-agglomerate compositions are mixtures of reaction products of non-halide-containing organic acids and organic amines. | 03-29-2012 |
20120088942 | Pyroglutamic Acid Esters With Improved Biodegradability - The invention relates to compounds of formula (1) in which A represents a C | 04-12-2012 |
20120220807 | a-OLEFIN / VINYL PYRROLIDINONE COPOLYMERS AS ASPHALTENE DISPERSANTS - An additive comprising, dissolved in a solvent, an asphaltene dispersant selected from the group consisting of α-olefin/vinyl pyrrolidinone copolymers. The copolymer can comprise at least one α-olefin selected from the group consisting of mono-α-olefins, at least one α-olefin selected from the group consisting of linear α-olefins and/or at least one α-olefin is selected from the group consisting of 1-hexadecene, 1-octadecene, 1-eicosene, 1-docosene, 1-tetracosene, 1-hexacosene, 1-octacosene and 1-triacontene. The additive can comprise a copolymer of 2-pyrrolidinone, 1-ethenyl monomer. The copolymer can have a Hansen Solubility Parameter (HSP), δ, of greater than 16, 17 or 18 MPa | 08-30-2012 |
20130072729 | METHODS AND COMPOSITIONS FOR INHIBITING POLYSTYRENE FORMATION DURING STYRENE PRODUCTION - Methods and compositions are provided for inhibiting the polymerization of a vinyl aromatic monomer, such as styrene monomer, during elevated temperature processing or distillation thereof. The compositions comprise an inhibitor combination of (A) a hydroxylamine and (B) a stable free radical plus a retarder that is either; (C) dinitrobutylphenol or (D) quinone methide. The ratio of (A) to (B) ranges from about 5% (A) to 95% (B) to about 95% (A) to about 5% (B). The compositions are added to the vinyl aromatic monomer in amounts sufficient to prevent polymerization during the distillation process. Typically the inhibitor combination is added to the vinyl aromatic monomer in an amount ranging from about 10 to 150 ppm of the monomer. Retarders are typically added in an amount ranging from 50 to 1500 ppm of the vinyl aromatic monomer. | 03-21-2013 |
20130165708 | METHODS FOR SUPPRESSING ISOMERIZATION OF OLEFIN METATHESIS PRODUCTS - A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent that includes nitric acid to a mixture that includes the olefin metathesis product and residual metathesis catalyst from the metathesis reaction under conditions that are sufficient to passivate at least a portion of the residual metathesis catalyst. Methods of refining a natural oil are described. | 06-27-2013 |
20130190543 | METHOD AND COMPOSITION FOR ENHANCED OIL RECOVERY - A method is provided for treating a hydrocarbon containing formation. The method comprises providing a hydrocarbon recovery composition comprising a mixture of branched internal olefin sulfonate molecules, and contacting hydrocarbons in the hydrocarbon containing formation with the hydrocarbon recovery composition. The mixture of branched internal olefin sulfonate molecules has an average number of carbon atoms of between 19 and 23, and an average number of branches of at least 0.6 per molecule. A hydrocarbon composition produced from a hydrocarbon containing formation, and a hydrocarbon recovery composition comprising a mixture of branched internal olefin sulfonate molecules are also provided. | 07-25-2013 |
20130211159 | METHOD FOR DEGASSING A STORAGE TANK FOR LIQUID PRODUCTS CONTAINING VOLATILE ORGANIC COMPOUNDS, IN PARTICULAR PETROLEUM PRODUCTS - Method for degassing a storage tank for liquid products containing volatile organic compounds or VOC, in particular petroleum products, comprising a step a) of introducing an aqueous mixture comprising substances able to interact chemically and/or physically with the VOC in the gaseous state inside the tank, which is kept closed, so as to encourage them to pass from the gaseous phase to the liquid phase, and to remain in the liquid phase. Such introduction step being protracted so as to reduce the concentration of the VOC to a predetermined value functional to having an acceptable explosive limit. | 08-15-2013 |
20140039229 | Drag Reducing Compositions and Methods of Manufacture and Use - A drag reducing composition and method of use wherein the drag reducing composition comprises a polyolefin, drag reducing polymer, a carrier or suspending medium, and a polycarboxylate dispersion agent. | 02-06-2014 |
20140288337 | PROCESS AND COMPOSITION FOR INHIBITING THE POLYMERIZATION OF CYCLOPENTADIENE COMPOUNDS - A process for inhibiting the polymerization of cyclopentadiene compounds (B) by contacting the cyclopentadiene compound with a quinone methide compound (A) of structure (I), | 09-25-2014 |
20140330054 | METHOD FOR INHIBITNG THE PLUGGING OF CONDUITS BY GAS HYDRATES - A method for inhibiting the plugging of a conduit containing a flowable mixture comprising at least an amount of hydrocarbons capable of forming hydrates in the presence of water and an amount of water, which method comprises adding to the mixture an amount of a functionalized dendrimer effective to inhibit formation and/or accumulation of hydrates in the mixture at conduit temperatures and pressures; and flowing the mixture containing the functionalized dendrimer and any hydrates through the conduit wherein the functionalized dendrimer comprises at least one ammonium functional end group. | 11-06-2014 |
20140343332 | INHIBITORS OF TOP-OF-LINE CORROSION OF PIPELINES CONVEYING CRUDES FROM EXTRACTION OF HYDROCARBONS - A composition for inhibiting corrosion of the upper part (or roof) of a pipeline for conveying wet hydrocarbons, i.e. hydrocarbons comprising a variable amount of water, comprises at least one Amine 1 with vapour pressure greater than or equal to 10 mmHg, and at least one Amine 2 with vapour pressure greater than or equal to 0.1 mmHg and less than 10 mmHg. The use of such a composition, and also to the method of inhibiting top-of-line corrosion employing the inhibitor composition is also disclosed. | 11-20-2014 |
20140364660 | Amine and Nitroxide Based Additive Composition for Control and Inhibition of Polymerization of Styrene, and Method of Use Thereof - The present invention relates to additive composition for controlling and inhibition of polymerization of aromatic vinyl monomers including styrene comprising (a) one or more of nitroxide (i.e. nitroxyl) compounds, and characterized in that the said composition further comprises one or more of (b) aliphatic amines selected from a group comprising tertiary amines, secondary amines and primary amines. In one embodiment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition. | 12-11-2014 |
20140364661 | METHOD AND COMPOSITION FOR REDUCING VISCOSITY OF A HYDROCARBON MIXTURE - A method of reducing the viscosity of a crude oil, the method comprising contacting the crude oil with a composition which comprises at least one poly(hydroxycarboxylic acid) amide salt derivative. | 12-11-2014 |
20160032161 | METHODS AND COMPOSITIONS FOR DECREASING THE VISCOSITY OF HYDROCARBON-BASED FLUIDS DURING REFINING - At least one biosurfactant may be added to a hydrocarbon-based fluid to decrease the viscosity of the hydrocarbon-based fluid. The biosurfactant(s) may be less toxic to the environment than other diluents typically used to decrease the viscosity of such fluids. The biosurfactant(s) may be or include, but are not limited to mycolic acids, glycolipids, lipopolysaccharides, lipoproteins-lipopeptides, phospholipids, and combinations thereof. | 02-04-2016 |
20160046855 | Asphaltene Inhibition - The technology disclosed herein provides compositions and methods for asphaltene control in a hydrocarbon fluid, such as crude oil, by employing a quaternary ammonium salt. | 02-18-2016 |
20160083315 | Additive Composition for Control and Inhibition of Polymerization of Aliphatic Monomers, and Methods of Preparation and Use Thereof - The present invention relates to additive composition and method of use thereof for controlling and inhibition of polymerization and dimerization of aliphatic monomers including butadiene comprising A) one or more of first component selected from a group comprising a) quinone methide (QM), b) quinone methide (QM) derivative including ester derivative of quinone methide, c) nitroxide (i.e. nitroxyl) compounds, and d) mixture thereof; characterized in that the composition further comprises B) one or more of second component selected from amines or polyamines, wherein the amine and polyamine is selected from a group comprising i) oxide treated tertiary amines, ii) hydroxyl alkyl tertiary amines, iii) polyether amines, and iv) mixture thereof. In one embodiment, the present invention also relates to a method for controlling and inhibiting polymerization and dimerization of aliphatic monomers including butadiene by employing the presently provided compositions, and in another embodiment, the present invention relates to a method of preparation of the presently provided compositions. | 03-24-2016 |
585005000 | Additive(s) aromatic | 16 |
20090149682 | Process for Inhibiting Polymerization of an Aromatic Vinyl Compound - According to the present invention, there is provided a process for inhibiting polymerization of an aromatic vinyl compound during the stage of producing, purifying, storing or transporting the aromatic vinyl compound which not only inhibits an initial polymerization but also inhibits efficiently polymerization over a long period of time and which is excellent in the handleability. | 06-11-2009 |
20090240092 | ORTHO-NITROSOPHENOLS AS POLYMERIZATION INHIBITORS - Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one nitroso inhibitor of the structure: | 09-24-2009 |
20110218371 | Stabilizers for the Stabilization of Unsaturated Hydrocarbon-Based Precursor - A stabilized composition consists essentially of unsaturated hydrocarbon-based materials, and a stabilizer selected from the group consisting of a hydroxybenzophenone and a nitroxyl radical based stabilizer. A method for stabilizing unsaturated hydrocarbon-based precursor material against the polymerization comprises providing a stabilizer selected from the group consisting of a hydroxybenzophenone and a nitroxyl radical based stabilizer. | 09-08-2011 |
20120264985 | PROCESS FOR INHIBITING POLYMERIZATION OF AN AROMATIC VINYL COMPOUND - A process for inhibiting polymerization of an aromatic vinyl compound during the stage of producing, purifying, storing or transporting the aromatic vinyl compound which not only inhibits an initial polymerization but also inhibits polymerization efficiently over a long period of time and which is excellent in handleability. The process involves the step of adding a nitrogenous aromatic compound in combination with a sulfonic acid compound to the aromatic vinyl compound during the production, purification, storage of transportation thereof. | 10-18-2012 |
20120310022 | Compositions And Methods For Inhibiting Naphthenate Solids Formation From Liquid Hydrocarbons - The present invention relates to a composition and method for inhibiting the formation of naphthenate solids in a liquid hydrocarbon. The method includes contacting a composition including a rosin amine having a formula (I): or (II): where formula (AA): represents a single or double bond; R1, R2 and R5 each independently represent H, alkyl, alkenyl or an alkynyl group each having between one and ten carbon atoms, —(R3O)nR4 wherein R3 is an alkyl group having 1 to 3 carbon atoms and R4 is H, alkyl, alkenyl or an alkynyl group each having between one and ten carbon atoms; n is an integer between 5 and 50; X is a halide, sulphate, phosphate or acetate ion; and a demulsifier intermediate with the liquid hydrocarbon. | 12-06-2012 |
20130030225 | METHODS AND COMPOSITIONS FOR INHIBITING VINYL AROMATIC MONOMER POLYMERIZATION - Methods and compositions are provided for inhibiting the polymerization of a vinyl aromatic monomer, such as styrene monomer, during elevated temperature processing thereof or during storage or shipment of polymer containing product. The compositions comprise a combination of a quinone methide derivative A) and a phenol compound B). The methods comprise adding from about 1-10,000 ppm of the combination to the monomer containing medium, per one million parts of the monomer. | 01-31-2013 |
20130116486 | Retarder Composition - The invention relates to a retarder composition for the control of unwanted polymerisation reactions during the production and processing of ethylenically unsaturated compounds, the composition comprising at least one di-substituted quinone compound and at least one hydroxylamine compound. Optionally, the composition also comprises at least one stable free radical nitroxyl compound and one or more formulation adjuvants. The invention also envisages a process stream comprising at least one ethylenically unsaturated compound, and a method for the prevention of unwanted polymerisation reactions during the production and processing of ethylenically unsaturated compounds. The composition has been found to be far more effective than expected, given that the individual components show little or no efficacy when used alone, and poses much less hazard to humans than the compositions of the prior art. | 05-09-2013 |
20140200375 | Additive Composition for Control and Inhibition of Polymerization of Styrene, and Method of Preparation and Use Thereof - The present invention relates to additive composition for control and inhibition of polymerization of styrene, wherein the composition comprises amine and quinone methide, and wherein the amine is polymerization non-inhibitor amine. In one embodiment, the present invention relates to method of preparation and use of additive composition to control and inhibit polymerization of styrene, wherein the composition comprises amine and quinone methide, and wherein the amine is polymerization non-inhibitor amine. In another embodiment, the present invention relates to additive composition for control and inhibition of polymerization of styrene, wherein the composition comprises oxide treated derivative of amine and quinone methide, and wherein the amine is polymerization non-inhibitor amine, and to the method of preparation and use thereof. | 07-17-2014 |
20140243564 | METHOD FOR INHIBITING FOULING IN BASIC WASHING SYSTEMS - Fouling in basic washing systems such as caustic scrubbers can be prevented or at least mitigated by treating the liquid washing phase used in a caustic scrubber with an additive having at least one compound selected from the group consisting of oxalyl dihydrazide, a disulfite salt, isopropyl hydroxylamine, chlorobenzhydrazide, aminobenzhydrazide, a thiosulfate salt, 4,4-dimethyl oxazolidine, a hydrosulfite salt, and mixtures thereof, particularly in the case where the liquid washing phase includes components that may undergo an aldol condensation, the products of which may cause fouling solids and/or sludges. | 08-28-2014 |
20140309466 | METATHESIS CATALYSTS AND REACTIONS USING THE CATALYSTS - The invention relates to a method of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising step (i):
| 10-16-2014 |
20140316172 | Amine Based Additive Composition for Control and Inhibition of Polymerization of Styrene, and Method of Use Thereof - The present invention relates to amine based additive composition for controlling and inhibition of polymerization of aromatic vinyl monomers including styrene comprising (a) one or more of nitroxide (i.e. nitroxyl) compounds; and (b) one or more of aromatic nitro compounds, characterized in that the said composition further comprises one or more of (c) amines, wherein said amine is selected from a group comprising (i) hydroxyl alkyl tertiary amines, (ii) tertiary alkyl amines, (iii) hydroxyl alkyl primary amine; and (iv) mixture thereof. In one embodiment, the present invention also relates to method of using presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition. | 10-23-2014 |
20140350313 | Additive Composition for Control and Inhibition of Polymerization of Aromatic Vinyl Monomers, and Method of Use Thereof - The present invention relates to an improved additive composition for control and inhibition of polymerization of aromatic vinyl monomers including styrene comprising one or more of aromatic nitro compounds and one or more of aliphatic tertiary amines. In one embodiment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition. | 11-27-2014 |
20140364662 | Amine Based Additive Composition for Control and Inhibition of Polymerization of Aromatic Vinyl Monomers, and Method of Use thereof - The present invention relates to an improved amine based additive composition for control and inhibition of polymerization of aromatic vinyl monomers including styrene comprising one or more of the quinone methide or derivatives thereof, one or more of nitroxide compounds and further comprising one or more of aliphatic tertiary amines. In one embodiment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers, particularly of styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition. | 12-11-2014 |
20140371495 | CORROSION INHIBITION - The invention relates to a method of inhibiting corrosion by corrosive fluids, and more specifically to inhibiting corrosion of a metallic surface. The method comprising adding to the corrosive fluid a specifically selected ionic liquid which is added in an amount, based on the total weight of the corrosive fluid, effective to mitigate or alleviate corrosion. | 12-18-2014 |
20150322330 | LOW DOSAGE KINETIC HYDRATE INHIBITORS FOR NATURAL GAS PRODUCTION SYSTEMS - Copolymers containing acryloylmorpholine and vinylimidazole, and optionally vinylcaprolactam and/or n-vinyl pyrrolidone, have shown superior results in hydrate inhibition tests at conditions of 7° C. subcooling dosed at 1 vol % based on the water cut of the system fluids. The copolymer product has also passed high TDS (total dissolved solids) brine compatibility tests and secondary property tests including foaming and hot injection tests which make it useful as a kinetic hydrate inhibitor in gas production systems susceptible to the formation of natural gas hydrates. | 11-12-2015 |
20150361013 | USE OF ALIPHATIC NITROSO COMPOUNDS AS INHIBITORS OF RADICAL POLYMERIZATION OF ACTIVATED VINYL MONOMERS - Methods and compositions are provided for inhibiting the polymerization of a vinyl aromatic monomer, such as styrene monomer, during elevated temperature processing thereof or during storage or shipment of polymer containing product. The methods comprise adding from about 1-10,000 parts of an aliphatic nitroso compound (ANC) to the monomer, based upon one million parts of the monomer. The compositions comprise a combination of ANC (I) and dinitrophenol (II) and/or quinone methide (III) dissolved or dispersed in a liquid carrier. | 12-17-2015 |