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Class Information
Number: 585/829
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By contact with solid sorbent > With specified sorbent rehabilitation procedure or agent, e.g., desorbent, etc. > Unsaturated sorbate
Description: Subject matter in which an acyclic hydrocarbon having olefinic or acetylenic unsaturation is the material retained by the sorbent during the sorption cycle.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8641906 Method and system for distributing and collecting fluids in a multi-stage column Feb. 4, 2014
8580120 Reduction in flushing volume in an adsorptive separation system Nov. 12, 2013
8569564 Separation system Oct. 29, 2013
8552247 Aromatics recovery by extractive distillation Oct. 8, 2013
8404916 Process for separating and/or introducing a flush material in an adsorption separation system Mar. 26, 2013
8273938 Heavy olefin production process Sep. 25, 2012
8071834 Adsorption process with on-line adsorbent removal Dec. 6, 2011
8053620 Guard bed for removing contaminants from feedstock to a normal paraffin extraction unit Nov. 8, 2011
8017825 Modified ETS-10 zeolites for olefin separation Sep. 13, 2011
8008536 Simulated moving bed adsorptive separation process for handling multiple feedstocks Aug. 30, 2011
7977526 Simulated countercurrent adsorptive separation process Jul. 12, 2011
7960601 Heavy paraffin adsorption separation process Jun. 14, 2011
7396973 Simulated moving bed adsorptive separation process for handling multiple feedstocks Jul. 8, 2008
7332640 Light hydrocarbon separation using 8-member ring zeolites Feb. 19, 2008
7148392 Separation of 1-butene from C.sub.4 feed streams Dec. 12, 2006
7128829 Removal of impurities from liquid hydrocarbon streams Oct. 31, 2006
6924406 Process for separating mixtures of hydrocarbon isomers in gas phase on molecular sieves Aug. 2, 2005
6911569 Sulfur resistant adsorbents Jun. 28, 2005
6680419 Process enhancing adsorbent capacity for acetylenic compounds Jan. 20, 2004
6497812 Conversion of C1-C3 alkanes and fischer-tropsch products to normal alpha olefins and other liquid hydrocarbons Dec. 24, 2002
6492513 Method for separating analogous organic compounds Dec. 10, 2002
6423881 Selective adsorption of alkenes using supported metal compounds Jul. 23, 2002
6410815 Agglomerated zeolite adsorbents, process for their preparation, and their use for adsorbing paraxylene from aromatic C8 fractions Jun. 25, 2002
6395951 Adsorptive separation product recovery by fractional distillation May. 28, 2002
6348636 Purification of polymeric dispersions by stripping in the presence of adsorbent materials Feb. 19, 2002
6225518 Olefinic hydrocarbon separation process May. 1, 2001
6215037 Method for selective adsorption of dienes Apr. 10, 2001
6166278 Use of naturally acid smectites to remove olefins from aromatics or aromatic mixtures and processes therewith Dec. 26, 2000
6124517 Olefin purification by adsorption of acetylenics and regeneration of adsorbent Sep. 26, 2000
6106702 Olefinic hydrocarbon separation process Aug. 22, 2000
6080905 Olefin purification by adsorption of acetylenics and regeneration of adsorbent Jun. 27, 2000
6069289 Process for separating and recovering multimethyl-branched alkanes May. 30, 2000
6060032 Layered adsorbent bed for carbon monoxide production May. 9, 2000
5912395 Raffinate line flush in simulated continuous moving bed adsorptive separation process Jun. 15, 1999
5863315 Process for the separation of isoalkanes/n-alkanes by gas phase adsorption using a pressure swing and four adsorbers Jan. 26, 1999
5744687 Process for recovering alkenes from cracked hydrocarbon streams Apr. 28, 1998
5488185 Process for the production of ethanol and isopropanol Jan. 30, 1996
5442040 Extraction of selection hydrocarbons from a hydrocarbon stream using a carbon adsorbent Aug. 15, 1995
5365011 Method of producing unsaturated hydrocarbons and separating the same from saturated hydrocarbons Nov. 15, 1994
5322927 Method for producing polymers Jun. 21, 1994
5276246 Process for separating normal olefins from non-normal olefins Jan. 4, 1994
5258571 Separations using highly dispersed cuprous compositions Nov. 2, 1993
5245099 PSA process for recovery or ethylene Sep. 14, 1993
5227567 Separation process for the product streams resulting from the dehydrogenation of hydrocarbons Jul. 13, 1993
5220099 Purification of a hydrocarbon feedstock using a zeolite adsorbent Jun. 15, 1993
5220102 Process for separating normal olefins from non-normal olefins Jun. 15, 1993
5132485 Adsorptive separation of alpha-olefins and internal olefins Jul. 21, 1992
4864071 Process for separation of unsaturated hydrocarbon from gas mixture Sep. 5, 1989
4747855 Solid absorbent for unsaturated hydrocarbon and process for separation of unsaturated hydrocarbon from gas mixture May. 31, 1988
4727122 Recovery of unreacted monomers in olefin polymerization process Feb. 23, 1988

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