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Browse by Category: Main > Chemistry
Class Information
Number: 585/867
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By addition of extraneous agent, e.g., solvent, etc. > Organic agent > Hydrocarbon
Description: Subject matter wherein an agent contains only carbon and hydrogen in its molecule.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8685234 Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials Apr. 1, 2014
8663461 Extraction process with novel solvent regeneration methods Mar. 4, 2014
8569547 Process for recovering monoalkylbenzene Oct. 29, 2013
8455709 Heavy hydrocarbon removal systems and methods Jun. 4, 2013
8404108 Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials Mar. 26, 2013
8404107 Extraction of hydrocarbons from hydrocarbon-containing materials Mar. 26, 2013
8388830 Process for upgrading sweetened or oxygen-contaminated kerosene or jet fuel, to minimize or eliminate its tendency to polymerize or foul when heated Mar. 5, 2013
8323456 Removal of bound water from bio-oil Dec. 4, 2012
8148450 Process to produce a hydrocarbon rubber cement utilizing a hydrofluorocarbon diluent Apr. 3, 2012
8142661 Residual stream upgrading in a propylene oxide-styrene monomer process Mar. 27, 2012
8101812 Extraction of hydrocarbons from hydrocarbon-containing materials Jan. 24, 2012
7875759 Process for extracting natural gas liquids from natural gas Jan. 25, 2011
7795488 Process for the removal of oxygenates from a gaseous stream Sep. 14, 2010
7723557 Method for the preparation of linear alpha-olefins and reactor system therefore with improved disposal of high molecular weight oligomers May. 25, 2010
7687677 Process for recovering thermal energy from a reactor effluent stream Mar. 30, 2010
7582312 Methods to produce lung surfactant formulations via lyophilization and formulations and uses thereof Sep. 1, 2009
7553406 Process for removing polar impurities from hydrocarbons and mixtures of hydrocarbons Jun. 30, 2009
7550065 Method for recovering solvents Jun. 23, 2009
7547814 Separation of olefin vapor from liquid fraction to reduce fouling Jun. 16, 2009
7465846 Extraction of oxygenates from a hydrocarbon stream Dec. 16, 2008
7442847 Removing diamondoid components from natural gas at reduced temperatures Oct. 28, 2008
7402720 Distillation process for removal of methyl acetylene and/or propadiene from an olefin stream Jul. 22, 2008
6914167 Vent recovery system Jul. 5, 2005
6734332 Process for enriching cis or trans-isomers in an olefin stream May. 11, 2004
6727399 Process for separating linear alpha olefins from saturated hydrocarbons Apr. 27, 2004
6676830 Process for the desulfurization of a light FCC naphtha Jan. 13, 2004
6576806 Process for separating C2-C3 olefins from industrial gases Jun. 10, 2003
6559349 Process for separating internal and alpha olefins from saturated compounds May. 6, 2003
6545192 Process for separating olefins from saturated hydrocarbons Apr. 8, 2003
6531103 Process for removing sulfur compounds from gas and liquid hydrocarbon streams Mar. 11, 2003
6447578 Process for the removal of nitrogen contained in natural gas Sep. 10, 2002
6407304 Process for the isolation of high boilers from the cyclooligomerization of 1,3-butadiene Jun. 18, 2002
6358372 Method of reducing formation of precipitates in solvent recovery system Mar. 19, 2002
6340414 Process for the recovery of perfluorinated sulphonic acids from spent acid Jan. 22, 2002
6278029 Process for eliminating polar compounds on an etherification unit Aug. 21, 2001
6271434 Process for separating linear alpha olefins from a crude stream containing saturated hydrocarbons, internal olefins, branched olefins, and linear alpha olefins Aug. 7, 2001
6211423 Process for separating saturated compounds from olefins Apr. 3, 2001
6184431 Process for separating internal and alpha olefins from saturated compounds Feb. 6, 2001
RE37046 Process for recycling and purifying condensate from a hydrocarbon or alcohol synthesis process Feb. 6, 2001
6175050 Process for separating functionalized alpha olefins from functionalized internal olefins Jan. 16, 2001
6121505 Process for synthesizing and purifying olefins comprising dehydrogenating a paraffin Sep. 19, 2000
6066238 Hydrocarbon separation May. 23, 2000
6018089 Process for separating linear internal olefins from branched internal olefins Jan. 25, 2000
6005157 Cycloparaffin purification from petroleum streams Dec. 21, 1999
5977423 Mixed phase ethylation process for producing ethylbenzene Nov. 2, 1999
5968346 Two stage hydroprocessing with vapor-liquid interstage contacting for vapor heteroatom removal Oct. 19, 1999
5942655 Process for the removal of heavy hydrocarbonaceous co-products from a vapor effluent from a normally gaseous hydrocarbon dehydrogenation reaction zone Aug. 24, 1999
5942656 Process for separating linear alpha olefins from 2-branched and/or 3-branched alpha olefins Aug. 24, 1999
5939596 Butadiene removal system for ethylene plants with front end hydrogenation systems Aug. 17, 1999
5936136 Process for separating linear alpha olefins from 2 branched and/or3-branched alpha olefins Aug. 10, 1999

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