Class 585/257 - By hydrogen transfer from other hydrocarbon

Subclass of Class 585 - Chemistry of hydrocarbon compounds
Definition: Subject matter wherein the hydrogen which goes toward saturation
No. of patents: 23
Last issue date: 12/20/2011

Number	Title	Issue Date
8080697	Process for the production of ethylene from natural gas with heat integration 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)...	12/20/2011
8013196	Process for the production of ethylene The invention relates to a process for the production of ethylene, comprising the steps of a) thermally converting, by a pyrolysis or a partial oxidation process, a feed charge containing methane into an acetylene containing effluent, and b) in situ hydrogenating, b...	09/06/2011
8003838	1,4-hydrogenation of dienes with Ru complexes 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�...	08/23/2011
5837127	Process for cracking and transhydrogenation of hydrocarbon feedstock 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 transhydrogenatio...	11/17/1998
5744667	Preparation of trimethyl pentanes by hydrogen transfer 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 z...	04/28/1998
5639926	Process for producing a branched chain olefin by isomerization and transhydrogenation 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 ...	06/17/1997
5585530	Transhydrogenation 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 o...	12/17/1996
5510503	Bisphosphines for asymmetric hydrogenation catalysts The invention relates to novel enantiomerically pure bisphosphines of the general formula (I) ##STR1## in which R, R1 and R2 have the meanings given in the description, a process for the preparation thereof and the use thereof i...	04/23/1996
5227552	Process for hydrogenating alkenes in the presence of alkanes and a heterogeneous catalyst 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 differ...	07/13/1993
4751344	Catalytic synthesis of olefins from paraffins 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 ...	06/14/1988
4684755	Catalyzed process 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 condit...	08/04/1987
4670621	Catalytic synthesis of olefins from paraffins 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 ...	06/02/1987
4359594	Novel process for preparing ethylbenzene Vinyl cyclohexene is converted to ethylbenzene and styrene at 170° C.-360° C. in the presence of a hydrogen transfer catalyst typified by IrCl(CO)(Ph3 P)2....	11/16/1982
4322556	Method for preparing aniline by reaction of nitrobenzene and vinylcyclohexene Aniline may be prepared by reaction of nitrobenzene and vinylcyclohexene at 170° C.-300° C., typically 200° C., in the presence of a homogeneous catalyst typified by IrCl(CO)(Ph3 P)2....	03/30/1982
4260839	Ethane conversion process A process for effecting an endothermic and an exothermic reaction, under conversion conditions, in a single reaction zone wherein ethane is endothermically converted to C3 + hydrocarbons, and wherein an unconverted portion of ethane is simultan...	04/07/1981
4138444	Self-alkylation of isobutane Isobutane is self-alkylated to an alkylate composition having high octane components including trimethylpentanes in the presence of a solid catalyst and a minor amount of a C5 and higher olefin. The self-alkylation process utilizes a chlorided ...	02/06/1979
4133840	Preparation of 4-homoisotwistane, (tricyclo[5.3.1.0³,8 ]undecane) A process for the hydride transfer reduction rearrangement of tricyclo[6.2.1.02,6 ]undeca-2(6)-ene having the formula (I): ##STR1## by subjecting tricyclo[6.2.1.02,6 ]undeca-2(6)-ene having the formula (I) to rearrangement with ...	01/09/1979
4101416	Process for hydrogenation of hydrocarbon tars Hydrocarbon tars of high asphaltene content such as tars obtained from pyrolysis of coal are dissolved in a solvent formed from the hydrogenation of the coal tars, and the resultant mixture hydrogenated in the presence of a catalyst at a pressure from abo...	07/18/1978
4100218	Ethane conversion process Ethane is converted to LPG and gasoline and/or aromatics concentrate in a combination process which comprises directly passing olefin effluent from the thermal cracking of ethane over a special crystalline aluminosilicate zeolite of the ZSM-5 type and rec...	07/11/1978
4070411	Conversion of lower olefins to isobutane The conversion of lower olefins, such as ethylene or propylene, in effective contact with HZSM-11 catalyst at elevated temperatures to produce a product having a significant isobutane content....	01/24/1978
4062803	Method for the preparation of complexes of metals of the VIII group of the periodic table and their use as catalysts for transferring hydrogen in a heterogeneous phase A method is disclosed for preparing complexes of metals of the VIII Group of the Periodic Table, useful as hydrogenation catalysts. The method, as a single-step process, comprises reacting a polymeric complex containing V Group elements and VIII Group met...	12/13/1977
3966586	Method for upgrading heavy petroleum type stocks Heavy hydrocarbon feeds are dispersed in solvent ethers and product recycle fraction prior to catalytic cracking thereof with acidic compositions comprising particular crystalline zeolite catalyst composition. The solvent ethers are provided by reacting p...	06/29/1976
3950447	Method for carrying out simultaneously the catalytic reactions involving hydrogen evolution and consumption A method for carrying out simultaneously the catalytic reactions involving the evolution and consumption of hydrogen, which comprises conducting the reactions in a reaction space divided by a partition made from a material that is selectively permeable to...	04/13/1976

PatentStorm

Quotables

PatentStorm News

Class 585/257 - By hydrogen transfer from other hydrocarbon