By Hydrogen Transfer From Other Hydrocarbon Patents (Class 585/257)
-
Patent number: 9260361Abstract: The invention relates to processes for converting hydrocarbons to olefins products such as ethylene and propylene. The invention also relates to polymerizing the olefins, and to equipment useful for these processes.Type: GrantFiled: October 12, 2012Date of Patent: February 16, 2016Assignee: ExxonMobil Chemical Patents Inc.Inventors: Paul F. Keusenkothen, Frank Hershkowitz, S. M. Davis
-
Patent number: 8586815Abstract: The present invention relates to a process for removing at least one component selected from the group consisting of oxygen, nitrogen oxides, acetylenes and dienes from a gas mixture comprising the at least one component and also hydrogen, one or more olefins which are not dienes and possibly further gas constituents, in which the gas mixture is brought into contact with a catalyst in a reaction zone, wherein the catalyst comprises copper(I) sulfide.Type: GrantFiled: August 24, 2007Date of Patent: November 19, 2013Assignee: BASF SEInventors: Peter Rudolf, Michael Bender, Michael Koch
-
Patent number: 8450543Abstract: Isobutene, isoprene, and butadiene are obtained from mixtures of C4 and/or C5 olefins by dehydrogenation. The C4 and/or C5 olefins can be obtained by dehydration of C4 and C5 alcohols, for example, renewable C4 and C5 alcohols prepared from biomass by thermochemical or fermentation processes. Isoprene or butadiene can be polymerized to form polymers such as polyisoprene, polybutadiene, synthetic rubbers such as butyl rubber, etc. in addition, butadiene can be converted to monomers such as methyl methacrylate, adipic acid, adiponitrile, 1,4-butadiene, etc. which can then be polymerized to form nylons, polyesters, polymethylmethacrylate etc.Type: GrantFiled: January 7, 2011Date of Patent: May 28, 2013Assignee: Gevo, Inc.Inventors: Matthew W. Peters, Joshua D. Taylor, David E. Henton, Leo E. Manzer, Patrick R. Gruber, Josefa M. Griffith, Yassin Al Obaidi
-
Patent number: 8383251Abstract: A substituted pyrene for electroluminescent applications and a method to produce the substituted pyrenes.Type: GrantFiled: April 30, 2012Date of Patent: February 26, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Norman Herron, Mark A. Guidry, Vsevolod Rostovtsev
-
Patent number: 8080697Abstract: The present invention relates to a process for the production of ethylene, comprising the following steps of: (a) thermally converting a feed charge containing methane into acetylene as an intermediate, (b) in-situ hydrogenation of the acetylene produced in step (a) into ethylene by a non-catalytic hydrogen transfer mechanism, characterized by (c) recovering heat from hot effluents obtained in step (b) which may be utilized for different purposes.Type: GrantFiled: January 18, 2007Date of Patent: December 20, 2011Assignee: Saudi Basic Industries CorporationInventors: Yungyi Lin, Mohamed Abdelghani
-
Publication number: 20110270002Abstract: A catalyst for producing monocyclic aromatic hydrocarbons, used for producing monocyclic aromatic hydrocarbons of 6 to 8 carbon number from a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and an end point temperature of not more than 400° C., wherein the catalyst contains a crystalline aluminosilicate, gallium and/or zinc, and phosphorus, the molar ratio between silicon and aluminum (Si/Al ratio) in the crystalline aluminosilicate is not more than 100, the molar ratio between the phosphorus supported on the crystalline aluminosilicate and the aluminum of the crystalline aluminosilicate (P/Al ratio) is not less than 0.01 and not more than 1.0, and the amount of gallium and/or zinc is not more than 1.2% by mass based on the mass of the crystalline aluminosilicate.Type: ApplicationFiled: March 26, 2010Publication date: November 3, 2011Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yuko Aoki, Kazuaki Hayasaka
-
Patent number: 8013196Abstract: 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. The process according to the invention is more efficient than other synthesis schemes, while simplifying the overall process design. This process thus offers an economically attractive scheme for mass production of ethylene from natural gas, based on a well-known and proven acetylene route.Type: GrantFiled: June 22, 2006Date of Patent: September 6, 2011Assignee: Saudi Basic Industries CorporationInventors: Aggadin Mamedov, Saeed Al-Wahabi, Yungyi Lin, Mohamed Sabri Abdelghani, Akram Al-Alwan
-
Patent number: 8003838Abstract: The present invention relates to the use of Ruthenium complexes having cyclopentadienyl derivatives and a diene as ligands, together with some acidic additives for improving the selectivity in the 1,4-hydrogenation of conjugated dienes into the corresponding “cis”-alkene as major product, i.e. wherein the two substituents in position 2,3 of the diene are in a cis configuration in the corresponding alkene.Type: GrantFiled: April 2, 2008Date of Patent: August 23, 2011Assignee: Firmenich SAInventors: Philippe Dupau, Lucia Bonomo
-
Patent number: 7847130Abstract: An additive for improving the rate of catalysis in biphasic reaction systems is disclosed. The additive is an ionic molecule comprising an organic cation such as a heterocyclic compound or a quaternary ammonium or phosphonium cation, and an anion which may be organic or inorganic. A process for improved catalysis in an aqueous biphasic system wherein the catalyst is substantially dissolved in the aqueous phase and the substrate is substantially contained in the non-aqueous phase is also described. A suitable additive is 1-octyl-3-methylimidazolium halide. Examples of suitable catalytic reactions include the hydrogenation, hydrosilation, hydroboration, hydrovinylation, hydroformylation, oxidation and hydroxycarbonylation of alkenes, and Heck, Suzuki, Stille, and Sonigashira coupling.Type: GrantFiled: August 21, 2007Date of Patent: December 7, 2010Assignee: The University Court of the University of St. AndrewsInventors: David Cole-Hamilton, Simon Laurent Desset
-
Patent number: 7820037Abstract: A desulfurizing agent is produced by mixing a copper compound, a zinc compound and an ammonium compound with an aqueous solution of an alkali substance to prepare or precipitate followed by calcitrating the resulting precipitate to form a calcined precipitate into a shape form of a copper oxide-zinc oxide-aluminum oxide mixture. The shaped form is impregnated with iron or nickel and calcined to produce a calcined oxide and reduced with hydrogen to form a sulfur-absorption desulfurizing agent.Type: GrantFiled: November 19, 2008Date of Patent: October 26, 2010Assignee: Osaka Gas Company LimitedInventors: Masataka Masuda, Shin-ichi Nagase, Susumu Takami, Osamu Okada
-
Publication number: 20100099904Abstract: The present invention relates to the use of Ruthenium complexes having cyclopentadienyl derivatives and a diene as ligands, together with some acidic additives for improving the selectivity in the 1,4-hydrogenation of conjugated dienes into the corresponding “cis”-alkene as major product, i.e. wherein the two substituents in position 2,3 of the diene are in a cis configuration in the corresponding alkene.Type: ApplicationFiled: April 2, 2008Publication date: April 22, 2010Inventors: Philippe Dupau, Lucia Bonomo
-
Publication number: 20090318734Abstract: An additive for improving the rate of catalysis in biphasic reaction systems is disclosed. The additive is an ionic molecule comprising an organic cation such as a heterocyclic compound or a quaternary ammonium or phosphonium cation, and an anion which may be organic or inorganic. A process for improved catalysis in an aqueous biphasic system wherein the catalyst is substantially dissolved in the aqueous phase and the substrate is substantially contained in the non-aqueous phase is also described. A suitable additive is 1-octyl-3-methylimidazolium halide. Examples of suitable catalytic reactions include the hydrogenation, hydrosilation, hydroboration, hydrovinylation, hydroformylation, oxidation and hydroxycarbonylation of alkenes, and Heck, Suzuki, Stille, and Sonigashira coupling.Type: ApplicationFiled: August 21, 2007Publication date: December 24, 2009Applicant: THE UNIVERSITY COURT OF THE UNIVERSITY OF ST. ANDREWSInventors: David Cole-Hamilton, Simon Laurent Desset
-
Patent number: 7534340Abstract: Process for the contemporaneous production of fuels and lubricating bases from synthetic paraffinic mixtures, which includes a hydrocracking step in the presence of a solid bi-functional catalyst comprising: (A) a support of an acidic nature consisting of a catalytically active porous solid, including silicon, aluminum, phosphorus and oxygen bonded to one another in such a way as to form a mixed amorphous solid characterized by an Si/Al atomic ratio of between 15 and 250, a P/Al ratio of at least 0.1, but lower than 5, a total pore volume ranging from 0.5 to 2.0 ml/g, with an average pore diameter ranging from 3 nm. to 40 nm, and a specific surface area ranging from 200 to 1000 M2/g; (B) at least one metal with a hydro-dehydrogenating activity selected from groups 6 to 10 of the periodic table of elements, dispersed on said support (A) in an amount of between 0.05 and 5% by weight with respect to the total weight of the catalyst.Type: GrantFiled: June 28, 2004Date of Patent: May 19, 2009Assignees: ENI S.p.A., Institute Francais du Petrole, Enitecnologie S.p.A.Inventors: Vincenzo Calemma, Cristina Flego, Luciano Cosimo Carluccio, Wallace Parker, Roberto Giardino, Giovanni Faraci
-
Patent number: 5837127Abstract: A hydrocarbon feedstock is cracked, and then the cracker product is compressed and separated into various hydrocarbon fractions including a stream containing hydrocarbons more highly unsaturated than mono-olefins. That stream is used for transhydrogenation with at least one paraffin and the products from transhydrogenation are combined with the cracker product before the compression thereof.Type: GrantFiled: June 23, 1995Date of Patent: November 17, 1998Assignee: Institut Francais du PetroleInventors: Arthur Gough, Stephen Keith Turner, Jane Mercer, Edmund Hugh Stitt
-
Patent number: 5744667Abstract: Gasoline range olefins such as trimethyl pentene are saturated to the corresponding paraffins such as trimethylpentane by hydrogen transfer from lower molecular weight paraffins using a catalyst comprising platinum supported on a large pore borosilicate zeolite which has been partially neutralized by the addition of alkali cations.Type: GrantFiled: December 31, 1996Date of Patent: April 28, 1998Assignee: Texaco Inc.Inventor: Regis J. Pellet
-
Patent number: 5639926Abstract: A process for producing a branched chain olefin which comprises isomerising and transhydrogenating a hydrocarbon stream containing at least one straight chain paraffin of 4 or more carbon atoms by contacting the same at elevated temperature with a stream containing a hydrogen acceptor that is more highly unsaturated than a mono-olefin to produce a stream containing at least one branched chain olefin product. The product is separated to give a stream depleted of the product. The thus depleted stream is recycled to the isomerising and transhydrogenating stages. The hydrogen acceptor stream may comprise a diene and/or acetylene.Type: GrantFiled: January 4, 1995Date of Patent: June 17, 1997Assignee: Institut Francais Du PetroleInventors: Stephen Keith Turner, Arthur Gough
-
Patent number: 5585530Abstract: A process for the production of olefins comprises dehydrogenating at least one hydrogen-donor hydrocarbon that is essentially free from olefinic unsaturation, e.g. a paraffin, in the presence of a dehydrogenation catalyst and in the presence of at least one hydrogen-acceptor hydrocarbon that is more highly unsaturated than a mono-olefin, e.g. a diene and/or acetylene, under conditions effective to cause at least part of said hydrogen-donor hydrocarbon to be dehydrogenated and at least part of the hydrogen-acceptor to be hydrogenated. The amount of hydrogen-acceptor is such that there are 0.5 to 20 moles of said hydrogen-donor for each mole of hydrogen-acceptor. Preferably the amount of said hydrogen-acceptor hydrocarbon hydrogenated is such that the heat of hydrogenation of said hydrogen-acceptor hydrocarbon provides at least 25% of the heat required for dehydrogenation of said hydrogen-donor hydrocarbon. In a preferred form of the invention, a hydrocarbon stream containing a hydrogen-acceptor is a C.sub.Type: GrantFiled: June 8, 1994Date of Patent: December 17, 1996Assignee: Institut Francais Du PetroleInventors: Arthur Gough, Stephen K. Turner
-
Patent number: 5510503Abstract: The invention relates to novel enantiomerically pure bisphosphines of the general formula (I) ##STR1## in which R, R.sup.1 and R.sup.2 have the meanings given in the description, a process for the preparation thereof and the use thereof in metal complexes as catalysts for asymmetric hydrogenations.Type: GrantFiled: September 2, 1994Date of Patent: April 23, 1996Assignee: Bayer AktiengesellschaftInventors: Christian Laue, Georg Schroder, Dieter Arlt, Rolf Grosser
-
Patent number: 5227552Abstract: The present invention provides a process for producing a selected paraffin from a reaction mixture containing(i) an acceptor olefin having the carbon backbone structure of said selected paraffin;(ii) a donor paraffin having a carbon backbone structure different from that of said selected paraffin;(iii) less than about 10 mole percent molecular hydrogen; which process comprises the steps of contacting said reaction mixture with a heterogeneous catalyst comprising active carbon in the absence of an added catalytic metal or metal compound to convert at least a portion of said acceptor olefin to said selected paraffin and to dehydrogenate at least a portion of said donor paraffin.Type: GrantFiled: April 27, 1992Date of Patent: July 13, 1993Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, Stuart D. Hellring, Randy F. Striebel
-
Patent number: 4751344Abstract: Saturated hydrocarbon is transformed catalytically into olefinic hydrocarbon of corresponding skeletal configuration by reacting the saturated hydrocarbon with a suitable alkene cyclopentadienyl or alkene arene transition metal molecular complex, such as bis(ethylene)pentamethylcyclopentadienyliridium, bis(ethylene)pentamethylcyclopentadienylrhodium and bis(ethylene)hexamethylbenzene osmium in the presence of free alkene as hydrogen acceptor. The reaction may be performed photochemically under irradiation with ultraviolet light or it may be performed thermolytically under application of heat. The catalyst may be charged to the reaction as a preformed alkene cyclopentadienyl or alkene arene transition metal molecular complex or the catalyst may be formed in situ in the reaction mixture via displacement of ligand from a suitable transition metal complex containing the displaceable ligand, such as dicarbonylpentamethylcyclopentadienyliridium or cyclooctadienepentamethylcyclopentadienyliridium.Type: GrantFiled: April 16, 1987Date of Patent: June 14, 1988Assignee: Ethyl CorporationInventor: Howard W. Walker
-
Patent number: 4684755Abstract: A transhydrogenation process for the conversion of alkanes to alkenes with high yields and extended catalyst life between regenerations comprises the pssing of an alkane combined with a suitable hydrogen acceptor over a catalyst bed, subject to the conditions that(a) the pressure is from 0-4 atmospheres (gauge);(b) the hydrogen acceptor is present to the extent of from 5-30% by volume;(c) the temperature of the catalyst is from 400.degree.-600.degree. C.; and(d) the temperature of the catalyst is raised during the process at a rate of from 1-15 deg. C/hr.The catalyst is preferably a chromia on alumina type.Type: GrantFiled: September 17, 1986Date of Patent: August 4, 1987Assignee: ICI Australia LimitedInventors: David Parris, Steven P. Tonner
-
Patent number: 4670621Abstract: Saturated hydrocarbon is transformed catalytically into olefinic hydrocarbon of corresponding skeletal configuration by reacting the saturated hydrocarbon with a suitable alkene cyclopentadienyl or alkene arene transition metal molecular complex, such as bis(ethylene)pentamethylcyclopentadienyliridium, in the presence of free alkene as hydrogen acceptor. The reaction may be performed photochemically under irradiation with ultraviolet light or it may be performed thermolytically under application of heat. The catalyst may be charged to the reaction as a preformed alkene cyclopentadienyl or alkene arene transition metal molecular complex or the catalyst may be formed in situ in the reaction mixture via displacement of ligand from a suitable transition metal complex containing the displaceable ligand, such as dicarbonylpentamethylcyclopentadienyliridium or cyclooctadienepentamethylcyclopentadienyliridium.Type: GrantFiled: May 5, 1986Date of Patent: June 2, 1987Assignee: Ethyl CorporationInventor: Howard W. Walker
-
Patent number: 4359594Abstract: Vinyl cyclohexene is converted to ethylbenzene and styrene at 170.degree. C.-360.degree. C. in the presence of a hydrogen transfer catalyst typified by IrCl(CO)(Ph.sub.3 P).sub.2.Type: GrantFiled: February 9, 1981Date of Patent: November 16, 1982Assignee: Texaco Inc.Inventors: John A. Patterson, Wheeler C. Crawford, James R. Wilson
-
Patent number: 4322556Abstract: Aniline may be prepared by reaction of nitrobenzene and vinylcyclohexene at 170.degree. C.-300.degree. C., typically 200.degree. C., in the presence of a homogeneous catalyst typified by IrCl(CO)(Ph.sub.3 P).sub.2.Type: GrantFiled: September 26, 1980Date of Patent: March 30, 1982Assignee: Texaco Inc.Inventors: John A. Patterson, Wheeler C. Crawford, James R. Wilson
-
Patent number: 4260839Abstract: A process for effecting an endothermic and an exothermic reaction, under conversion conditions, in a single reaction zone wherein ethane is endothermically converted to C.sub.3 + hydrocarbons, and wherein an unconverted portion of ethane is simultaneously exothermically hydrogenated to methane in the presence of a catalyst system comprising a crystalline aluminosilicate zeolite having a uniform structure characterized by pores, the major dimension of which is less than 6 Angstroms and ZSM-5 type aluminosilicate zeolite, containing a minor amount of Zn in combination with a Group VIII noble metal or a Group IB metal, the exothermic reaction providing sufficient heat to maintain the reaction zone at a temperature capable of sustaining the endothermic reaction.Type: GrantFiled: July 16, 1979Date of Patent: April 7, 1981Assignee: Mobil Oil CorporationInventors: Nai Y. Chen, Werner O. Haag, Tracy J. Huang