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Browse by Category: Main > Chemistry
Class Information
Number: 585/261
Name: Chemistry of hydrocarbon compounds > Adding hydrogen to unsaturated bond of hydrocarbon, i.e., hydrogenation > Hydrocarbon is contaminant in desired hydrocarbon > Hydrogenation of diolefin or triple bond > Using catalyst and additional nonmetal material
Description: Subject matter where the contaminant is hydrogenated in the presence of a catalyst and at least one additional nonmetal material, e.g., Decalin, etc.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8664459 Process for hydrogenating olefins Mar. 4, 2014
8426660 Process for purification of ethylene-containing feedstreams Apr. 23, 2013
8362308 Process for preparing a C4-olefin mixture by selective hydrogenation and metathesis process for using this stream Jan. 29, 2013
8309776 Method for contaminants removal in the olefin production process Nov. 13, 2012
8227650 Process and catalyst for selective hydrogenation of dienes and acetylenes Jul. 24, 2012
8216450 Removal of bromine index contaminants from aromatic streams Jul. 10, 2012
8013197 Absorption and conversion of acetylenic compounds Sep. 6, 2011
7732653 Method for producing graphite nanocatalysts having improved catalytic properties Jun. 8, 2010
7692051 Process for liquid phase hydrogenation Apr. 6, 2010
7612245 Method for selective hydrogenation of polyunsaturated compounds into monounsaturated compounds using a homogeneous catalyst Nov. 3, 2009
7582805 Supported catalyst for the selective hydrogenation of alkynes and dienes Sep. 1, 2009
7550637 Catalyst and process for selective hydrogenation Jun. 23, 2009
7550636 Process for the hydrotreatment of an olefinic gasoline comprising a selective hydrogenation stage Jun. 23, 2009
RE40752 Diene removal from an olefin feedstock Jun. 16, 2009
7462751 Catalyst and process for selective hydrogenation Dec. 9, 2008
7408090 Method of operating downflow boiling point reactors in the selective hydrogenation of acetylenes and dienes Aug. 5, 2008
7408091 Process for liquid phase hydrogenation Aug. 5, 2008
7390933 Reduction of the Bromine Index of linear alkylbenzenes Jun. 24, 2008
7368617 Selective hydrogenation of acetylenes and dienes in a hydrocarbon stream May. 6, 2008
7319176 Selective hydrogenation of acetylenes Jan. 15, 2008
7247760 Hydrogenation palladium-silver catalyst and methods Jul. 24, 2007
7208646 Selective hydrogenation of butadiene Apr. 24, 2007
7141709 Methods and systems of producing monoolefins by the extraction-hydrogenation of highly unsaturated hydrocarbons Nov. 28, 2006
7105711 Process for the selective hydrogenation of phenylacetylene Sep. 12, 2006
7087155 Production of olefins Aug. 8, 2006
7078577 DihydroDicyclopentadiene production Jul. 18, 2006
7045670 Process for liquid phase hydrogenation May. 16, 2006
7041860 Process for the selective hydrogenation of alkynes May. 9, 2006
7038097 Dual bed process using two different catalysts for selective hydrogenation of acetylene and dienes May. 2, 2006
7009085 Selective hydrogenation catalyst and processes therefor and therewith Mar. 7, 2006
6949686 Pyrolysis gasoline stabilization Sep. 27, 2005
6867338 Selective hydrogenation of acetylenes and dienes in a hydrocarbon stream Mar. 15, 2005
6858766 Process for selectively hydrogenating mixed phase front end C2-C10 greater unsaturated hydrocarbons Feb. 22, 2005
6830678 Process of desulphurizing gasoline comprising desulphurization of the heavy and intermediate fractions resulting from fractionation into at least three cuts Dec. 14, 2004
6747181 Process for the hydrogenation of phenyl acetylene in a styrene-containing medium with the aid of a catalyst Jun. 8, 2004
6740787 Process for treatment of C4 hydrocarbons that comprise butadiene and acetylene compounds that comprise stages for distillation and selective hydrogenation May. 25, 2004
6734328 Process for the selective hydrogenation of alkynes May. 11, 2004
6717022 Process for selective hydrogenation of alkynes and catalyst therefor Apr. 6, 2004
6689926 Process for purifying styrene monomer feedstock prior to polymerization Feb. 10, 2004
6486369 Process for selective hydrogenation of an olefinic feed stream containing acetylenic and diolefinic impurities Nov. 26, 2002
6482997 Conversion reactions for organic compounds Nov. 19, 2002
6469223 Selective hydrogenation of dienes Oct. 22, 2002
6462244 Hydrogenation catalysts Oct. 8, 2002
6388162 Diene removal from an olefin feedstock May. 14, 2002
6329561 Impurities removal Dec. 11, 2001
6255548 Process for selective hydrogenation of unsaturated compounds Jul. 3, 2001
6169218 Selective hydrogenation of highly unsaturated compounds in hydrocarbon streams Jan. 2, 2001
6127588 Hydrocarbon hydrogenation catalyst and process Oct. 3, 2000
6124514 Process for generating pure benzene from reformed gasoline Sep. 26, 2000
6118034 Process for the selective hydrogenation of dienes in reformate flows Sep. 12, 2000

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