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Class Information
Number: 585/258
Name: Chemistry of hydrocarbon compounds > Adding hydrogen to unsaturated bond of hydrocarbon, i.e., hydrogenation > Hydrocarbon is contaminant in desired hydrocarbon
Description: Subject matter where the unsaturated hydrocarbon which is hydrogenated is an impurity or contaminant in a desired hydrocarbon, a substantial amount of which desired hydrocarbon is present in the feedstock to the process.










Sub-classes under this class:

Class Number Class Name Patents
585/259 Hydrogenation of diolefin or triple bond 279


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8680350 Process for hydrogenating unsaturated hydrocarbons in the presence of catalysts containing copper and zinc Mar. 25, 2014
8664459 Process for hydrogenating olefins Mar. 4, 2014
8648227 Method for extracting pure styrene from a pyrolysis benzine fraction Feb. 11, 2014
8563793 Integrated processes for propylene production and recovery Oct. 22, 2013
8545694 Aromatics saturation process for lube oil boiling range feedstreams Oct. 1, 2013
8519207 Use of a mixture of an ordered intermetallic compound and an inert material as a catalyst and corresponding hydrogenation processes Aug. 27, 2013
8507740 Biorefinery method Aug. 13, 2013
8487150 Process for hydrogenating butadiyne Jul. 16, 2013
8481795 Processes for transalkylating aromatic hydrocarbons and converting olefins Jul. 9, 2013
8476186 Selective hydrogenation catalyst and process for its preparation Jul. 2, 2013
8471082 Process for converting methane to ethylene Jun. 25, 2013
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
8350106 Selective hydrogenation of unsaturated aliphatic hydrocarbons in predominantly aromatic streams Jan. 8, 2013
8338654 Hydrogenation process using catalyst comprising ordered intermetallic compound Dec. 25, 2012
8329971 Regeneration of catalyst used in purification of aromatic streams Dec. 11, 2012
8257673 Process for removing sulfur from separate less reactive and more reactive fuel gas streams containing organic sulfur and light olefins Sep. 4, 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
8067334 Selective hydrogenation catalyst Nov. 29, 2011
8048295 Process for decreasing bromine-reactive contaminants in hydrocarbon feeds Nov. 1, 2011
8044253 Xylene production processes with integrated feedstock treatment Oct. 25, 2011
8013197 Absorption and conversion of acetylenic compounds Sep. 6, 2011
7939699 Cobalt catalysts May. 10, 2011
7923588 Process for preparing a C4-olefin mixture by selective hydrogenation and metathesis process for using this stream Apr. 12, 2011
7910070 Process for reducing benzene concentration in reformate Mar. 22, 2011
7842277 Molecular sieve composition, a method of making and a process of using the same Nov. 30, 2010
7816571 Selective hydrogenation process using layered catalyst composition Oct. 19, 2010
7803265 Distillate-to-gasoline catalyst system and process therefor Sep. 28, 2010
7776300 Process for removing sulfur from a fuel gas stream Aug. 17, 2010
7763164 Gasoline sulfur reduction in FCCU cracking Jul. 27, 2010
7692051 Process for liquid phase hydrogenation Apr. 6, 2010
7682502 Process to hydrogenate aromatics present in lube oil boiling range feedstreams Mar. 23, 2010
7671247 Methods for purifying alkane liquids Mar. 2, 2010
7578926 Process to enhance oxidation stability of base oils by analysis of olefins using A.sup.1H NMR Aug. 25, 2009
7550636 Process for the hydrotreatment of an olefinic gasoline comprising a selective hydrogenation stage Jun. 23, 2009
7528290 Apparatuses and methods for separating butene-1 from a mixed C.sub.4 feed May. 5, 2009
7525000 Acetylene removal methods and apparatus Apr. 28, 2009
7462277 Continuous method for separating a C.sub.4 cut Dec. 9, 2008
7408091 Process for liquid phase hydrogenation Aug. 5, 2008
7408089 Ni catalyst, process for making catalysts and selective hydrogenation process Aug. 5, 2008
7381854 Selective hydrogenation of alpha-methyl-styrene to cumene Jun. 3, 2008
7368625 Catalysts with high cobalt surface area May. 6, 2008
7319176 Selective hydrogenation of acetylenes Jan. 15, 2008
7297824 Ni hydrogenation catalysts, manufacture and use Nov. 20, 2007
7199273 Selective hydrogenation of alkynes and/or diolefins Apr. 3, 2007
7173160 Processes for concentrating higher diamondoids Feb. 6, 2007
7045670 Process for liquid phase hydrogenation May. 16, 2006
7038097 Dual bed process using two different catalysts for selective hydrogenation of acetylene and dienes May. 2, 2006
7014750 System and process for pyrolysis gasoline hydrotreatment Mar. 21, 2006

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