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| Number | Title | Issue Date |
| 7982086 | Deisobutenizer A process for fractionating isobutene from normal butenes, including: introducing hydrogen and a feed stream comprising isobutene, 1-butene, and 2-butene into a first column including a reaction zone containing a hydroisomerization catalyst operating at a first pres... | 07/19/2011 |
| 7956229 | Method for producing internal olefin, internal olefin mixture, and oil drilling fluid containing internal olefin mixture A method for producing an internal olefin by stably isomerizing an α-olefin by using an inexpensive zeolite catalyst while preventing an oligomerization reaction is provided. The method for producing an internal olefin comprises a step of isomerizing an α-olefin h... | 06/07/2011 |
| 7939703 | Method for photocatalytic isomerization of 1,2-diphenylethylene analogues The present invention relates to methods for accelerating the trans-cis isomerization of 1,2-diphenylethylene analogues by using photocatalyst. According to this invention, in the presence of polypyridyl platinum(II) complex with catalytic dosage, a solution contain... | 05/10/2011 |
| 7932428 | Process for preparing 1-butene from technical mixtures of C4 hydrocarbons The invention relates to a process for preparing 1-butene from technical mixtures which comprise at least 1-butene, isobutene, n-butane and 2-butenes by partial conversion of the isobutene present, distillative removal of a fraction comprising 1-butene and isobutene... | 04/26/2011 |
| 7429553 | Process for reducing the toxicity of hydrocarbons This invention relates to a method for reducing the toxicity of a mixture of hydrocarbons by means of fractional distillation, a distillate having a reduced toxicity and a composition including the distillate. ... | 09/30/2008 |
| 7405339 | Catalyst composition comprising a heteropoly acid, zinc, and a support component and processes therefor and therewith A process of contacting at least one isoparaffin and at least one C5 olefin in the presence of a catalyst composition under conversion conditions to provide for converting the at least one isoparaffin and the at least one C5 olefin is provided.... | 07/29/2008 |
| 7390395 | Hydrocarbon conversion using molecular sieve SSZ-56 The present invention relates to new crystalline molecular sieve SSZ-56 prepared using a N,N-diethyl-2-methyldecahydroquinolinium cation as a structure directing agent, methods for synthesizing SSZ-56 and processes employing SSZ-56 in a catalyst. ... | 06/24/2008 |
| 7355087 | Production of 1-alkenes from mixed olefin streams using catalytic distillation A catalytic distillation process for isomerizing and separating 1-alkenes from a mixed alkene stream. The process comprises contacting a mixed alkene stream comprising the 1-alkene and homologs thereof with a supported isomerization catalyst under isomerization/dist... | 04/08/2008 |
| 7332637 | Isomerization of olefins with carboxylic acid A method of modifying the activity of a solid acid catalyst by contact with a carboxylic acid is presented. The modified catalyst is exposed to a feed mixture including olefins in a reaction zone, and an effluent including an isomerized olefin product is withdrawn f... | 02/19/2008 |
| 7329788 | Process for producing gasoline components Process for producing gasoline components. The process comprises feeding a fresh olefinic hydrocarbon feedstock to a reaction zone, in which its structure is first isomerized. The isomerized hydrocarbon is drawn out of the first reaction zone and conducted to a seco... | 02/12/2008 |
| 7326817 | Process for reducing the toxicity of hydrocarbons This invention relates to a method for reducing the toxicity of a mixture of hydrocarbons by means of fractional distillation, a distillate having a reduced toxicity and a composition including the distillate. ... | 02/05/2008 |
| 7287745 | Liquid-continuous column distillation Bubble columns fractionate with vapor-liquid mass transfer efficiencies approaching that of distillation towers when vapor velocities in excess of 50% of jet flood are used. If the vapor velocities are pushed above about 70% of jet flood then the distillation perfor... | 10/30/2007 |
| 7271308 | Process for isomerization of alpha olefins to internal olefins The present invention relates to embodiments for a process for the isomerization of at least one alpha olefin to an internal olefin via a multi-step process resulting in a mixture comprising alkene isomers and a low level of oligomers. According to the present inven... | 09/18/2007 |
| 7256152 | Composition of catalyst and solvent and catalysis processes using this composition A composition defined: either as comprising at least one Broensted acid, designated HB, dissolved in a liquid medium with an ionic nature of general formula Q+A−, in which Q+ represents an organic cation and A− represents an an... | 08/14/2007 |
| 7227047 | Butadiene and isobutylene removal from olefinic streams A process is disclosed for selectively removing isobutene and butadiene from a stream, the process comprising contacting the stream with a hydrogenation catalyst to hydrogenate butadiene and an oligomerization catalyst to oligomerize isobutene. ... | 06/05/2007 |
| 7151199 | Hydrocarbon conversion processes using non-zeolitic molecular sieve catalysts Hydrocarbon or oxygenate conversion process in which a feedstock is contacted with a non zeolitic molecular sieve which has been treated to remove most, if not all, of the halogen contained in the catalyst. The halogen may be removed by one of several methods. One m... | 12/19/2006 |
| 7132582 | Catalytic process for the preparation of isolongifolene The present invention relates to a catalytic process for preparation of isolongifolene using nanocrystalline solid super acid. This process is an eco-friendly, single step, solvent free catalytic process for the preparation of a tricyclic sesqui-terpene hydrocarbon,... | 11/07/2006 |
| 7081437 | Environmentally compatible hydrocarbon blend drilling fluid A method of formulating and the resulting biodegradable wellbore fluid includes a first synthetic internal olefin fraction having from 16 to 18 carbon atoms (C16-18 IO), a second synthetic internal olefin fraction having between 15 to 18 carbon atoms (C | 07/25/2006 |
| 7078579 | Process for the isomerization of a vinylidene olefin A process for the double bond isomerization of a vinylidene olefin, comprising contacting a feed comprising the vinylidene olefin with an isomerization catalyst which comprises a molecular sieve in an acidic form, which molecular sieve comprises pores which have a p... | 07/18/2006 |
| 7074976 | Propylene production A method for making propylene from alpha olefins, internal linear olefins and isoolefins wherein the alpha olefins are subjected to a combination of hydrogenation and double bond isomerization to form additional internal linear olefins, the internal linear olefins a... | 07/11/2006 |
| 7041865 | Process for the isomerization of an olefin A process for the double bond isomerization of an olefin, which process comprises contacting a feed comprising the olefin with an isomerization catalyst, wherein prior to contacting the feed with the isomerization catalyst one or more components of the feed are pret... | 05/09/2006 |
| 6994799 | Ester-containing fluid compositions Disclosed are ester-containing fluid compositions, methods of making such compositions, and methods of using such compositions. The fluid compositions comprise a mix of branched and linear ester compounds, and the fluid compositions are characterized by certain perf... | 02/07/2006 |
| 6875901 | Olefin isomerization process An olefin isomerization process employs a basic metal oxide catalyst, such as magnesium oxide, which retains at least about 85 percent of its initial activity for at least about 168 hours of on-stream time. The catalyst is preferably a high purity magnesium oxide. T... | 04/05/2005 |
| 6872862 | Propylene production A method for making propylene from alpha olefins, internal linear olefins and isoolefins wherein the alpha olefins are subjected to a combination of hydrogenation and double bond isomerization to form additional internal linear olefins, the internal linear olefins a... | 03/29/2005 |
| 6858769 | Lithium aluminate layered catalyst and a selective oxidation process using the catalyst A catalyst for the selective oxidation of hydrogen has been developed. It comprises an inert core such as cordierite and an outer layer comprising a lithium aluminate support. The support has dispersed thereon a platinum group metal and a promoter metal, e.g. platin... | 02/22/2005 |
| 6852901 | Process to isomerize 1-butene to 2-butene A process is provided to produce a 2-alkene product from a 1-alkene-containing feed stream. The process comprises contacting the 1-alkene-containing feed stream in a reactor zone to isomerize the 1-alkene-containing feed stream to produce the 2-alkene product. More ... | 02/08/2005 |
| 6841713 | Process for preparing bicylo[2.2.1] heptane derivatives The invention relates to economical and efficient methods for producing 2-methylene-3-methylbicyclo[2,2,1]heptane, 2,3-dimethylbicyclo[2.2.1]hept-2-ene and the like that are useful for materials of producing base oil of traction drive fluid for traction drive lubric... | 01/11/2005 |
| 6822130 | Isomerization catalyst with a specific pore size distribution A catalyst composition comprising an alumina carrier, a Group VIII noble metal, and a halogen compound wherein the catalyst composition has total pore volume of more than 0.48 ml/g and wherein at least 50% of this total pore volume resides in pores with a diameter s... | 11/23/2004 |
| 6781022 | Polyvalent bifunctional catalyst and the process of realization of such a catalyst The objective of the present invention is a polyvalent bifunctional catalyst and the process of its realization. A catalyst characterized by the fact that it contains, over a TiO2 support, an oxide or a mixture of metallic oxides of MC2 type ob... | 08/24/2004 |
| 6768038 | Alpha olefin production A method for making alpha olefins from internal olefins using catalytic distillation techniques and an olefin double bond isomerization catalyst, and separately recovering said alpha olefins. ... | 07/27/2004 |
| 6649662 | Methods for optimizing fischer-tropsch synthesis of hydrocarbons in the distillate fuel and/or lube base oil ranges Methods for converting of syngas to higher molecular weight products using Fischer-Tropsch synthesis, and methods for optimizing the catalyst systems in the synthesis, are disclosed. In one embodiment, the methods use cobalt/ruthenium Fischer-Tropsch cata... | 11/18/2003 |
| 6593505 | Catalyst of mixed fluorosulfonic acids A catalyst comprising A) a stationary acid component selected from the group consisting of a perfluorinated ion exchange polymer on an inert support, a silane modified perfluorosulfonic acid, and a sulfated metal oxide; and B) a mobile acid component sele... | 07/15/2003 |
| 6566569 | Conversion of refinery C5 paraffins into C4 and C6 paraffins A process for preparing a C4- product stream and a C6 + product stream is disclosed. The process involves contacting a C5 containing paraffinic feedstock with a catalyst that includes a hydrogenation/dehydrogenation cataly... | 05/20/2003 |
| 6518469 | Process for improved yields of higher molecular weight olefins from lower molecular weight olefins A process for improved yields of heavier olefins from a substantially narrow range of lighter hydrocarbon feed stock containing olefins in a reaction distillation column comprising feeding a narrow range of hydrocarbon feed stock containing olefin into a ... | 02/11/2003 |
| 6495732 | Olefin isomerization process A process for the isomerization of mono-olefins in aliphatic hydrocarbon streams is carried out at 40 to 300° F. under low hydrogen partial pressure in the range of about 0.1 psi to less than 70 psi at 0 to 350 psig in a distillation column reactor conta... | 12/17/2002 |
| 6420619 | Cracked gas processing and conversion for propylene production The C3 to C6 cut from a cracking process containing propylene, butane, 1-butene, 2-butene and acetylenic and diene components including butadiene are preferentially converted to propylene. The cut is simultaneously fractionated and c... | 07/16/2002 |
| 6407302 | Isomerization process of a mixture containing vinyl and vinylidene olefins A method for the isomerization of a mixture of vinyl and vinylidene olefins having 10 to 35 carbons atoms to form a mixture comprising both di- and tri-substituted internal olefins including deep internal olefins.... | 06/18/2002 |
| 6395945 | Integrated hydroisomerization alkylation process A novel integrated olefin processing scheme is provided where olefins and paraffins are processed to produce high octane gasoline blending components. The integrated process involves the processing of olefins by hydroisomerization to produce a hydroisomer... | 05/28/2002 |
| 6388160 | Method for producing of 2,3-dimethylbutene-1 and 2,3-dimethylbutene-2 There is disclosed a method for producing 2,3-dimethylbutene-1 and 2,3-dimethylbutene-2, which is characterized by the steps of (a) dimerizing propylene in a propylene-dimerization step using a nickel complex catalyst as described below as a propylene-dimeriza... | 05/14/2002 |
| 6331573 | Increased liquid sensitivity during fischer-tropsch synthesis by olefin incorporation An integrated process for producing liquid fuels from syngas via a two-stage Fischer-Tropsch reaction is disclosed. The first stage of the Fischer-Tropsch chemistry is performed using conditions in which chain growth probabilities are relatively low to mo... | 12/18/2001 |
