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Class Information
Number: 585/822
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By contact with solid sorbent > Plural serial sorptions
Description: Subject matter in which an effluent from a sorption step or zone is passed through another sorption zone.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7592499 |
Process for co-producing para-xylene and styrene |
Sep. 22, 2009 |
| 7576253 |
Method of separating dimethylnaphthalene isomers |
Aug. 18, 2009 |
| 7449049 |
Method of purifying a natural gas by mercaptan adsorption |
Nov. 11, 2008 |
| 7435865 |
Method for separating hydrocarbons and use of a zeolite therefor |
Oct. 14, 2008 |
| 7396973 |
Simulated moving bed adsorptive separation process for handling multiple feedstocks |
Jul. 8, 2008 |
| 7342145 |
Process for refining liquefied petroleum gas in a commercial scale |
Mar. 11, 2008 |
| 7205448 |
Process for the removal of nitrogen compounds from a fluid stream |
Apr. 17, 2007 |
| 7148392 |
Separation of 1-butene from C.sub.4 feed streams |
Dec. 12, 2006 |
| 7087156 |
Process for removal of nitrogen containing contaminants from gas oil feedstreams |
Aug. 8, 2006 |
| 7063732 |
High-capacity sulfur adsorbent bed and gas desulfurization method |
Jun. 20, 2006 |
| 6960700 |
Adsorbent beds for removal of hydrides from hydrocarbons |
Nov. 1, 2005 |
| 6924406 |
Process for separating mixtures of hydrocarbon isomers in gas phase on molecular sieves |
Aug. 2, 2005 |
| 6870073 |
Process for separating normal paraffins from hydrocarbons and applications for the separated hydrocarbons |
Mar. 22, 2005 |
| 6841714 |
Process for co-production of paraxylene, metaxylene and/or orthoxylene |
Jan. 11, 2005 |
| 6838588 |
Process for co-producing para-xylene and metaxylene, comprising two separation steps |
Jan. 4, 2005 |
| 6828470 |
Coproduction process for para-xylene and ortho-xylene comprising two separation steps |
Dec. 7, 2004 |
| 6797854 |
Process for drying a gaseous or liquid mixture with the aid of an adsorber composed of alumina and of a molecular sieve |
Sep. 28, 2004 |
| 6784334 |
Process for separating multibranched paraffins using a zeolitic adsorbent with a mixed structure |
Aug. 31, 2004 |
| 6689929 |
Process for the production of para-xylene using toluene feeds and pressure swing adsorption |
Feb. 10, 2004 |
| 6627783 |
Pressure swing adsorption process for separating para-xylene and ethylbenzene from mixed C8 aromatics |
Sep. 30, 2003 |
| 6486375 |
Process for recovering hydrocarbons from inert gas-hydrocarbon vapor mixtures |
Nov. 26, 2002 |
| 6444869 |
Process for producing ethylene |
Sep. 3, 2002 |
| 6407305 |
Adsorptive separation process for recovery of two paraffin products |
Jun. 18, 2002 |
| 6376734 |
Process for the production of at least one isomer of xylenes that comprise an adsorption stage and an isomerization stage with an euo-structural-type catalyst |
Apr. 23, 2002 |
| 6369287 |
Process for co-production and separation of ethylbenzene and paraxylene |
Apr. 9, 2002 |
| 6359186 |
Process for co-production of metaxylene and paraxylene |
Mar. 19, 2002 |
| 6353144 |
Process for chromatographic separation of a C5-C8 feed or an intermediate feed into three effluents, respectively rich in straight chain, mono-branched and multi-branched paraffins |
Mar. 5, 2002 |
| 6303841 |
Process for producing ethylene |
Oct. 16, 2001 |
| 6225518 |
Olefinic hydrocarbon separation process |
May. 1, 2001 |
| 6221241 |
Process for removal of sulphur together with other contaminants from fluids |
Apr. 24, 2001 |
| 6177604 |
Process for co-production and separation of ethylbenzene and paraxylene |
Jan. 23, 2001 |
| 6156950 |
Process for separating a C5-C8 feed or an intermediate feed into three effluents, respectively rich in straight chain, non-branched and multi-branched paraffins |
Dec. 5, 2000 |
| 6106702 |
Olefinic hydrocarbon separation process |
Aug. 22, 2000 |
| 6011192 |
Membrane-based conditioning for adsorption system feed gases |
Jan. 4, 2000 |
| 5912395 |
Raffinate line flush in simulated continuous moving bed adsorptive separation process |
Jun. 15, 1999 |
| 5888402 |
Process for the purification of a hydrocarbon stream |
Mar. 30, 1999 |
| 5730860 |
Process for desulfurizing gasoline and hydrocarbon feedstocks |
Mar. 24, 1998 |
| 5675052 |
Hydrocarbon alkylation process |
Oct. 7, 1997 |
| 5510564 |
N-paraffin purification process with removal of aromatics |
Apr. 23, 1996 |
| 5456825 |
Simulated moving bed separation system |
Oct. 10, 1995 |
| 5421994 |
Process for the recovery of mercury and arsenic in a hydrocarbon cut |
Jun. 6, 1995 |
| 5417947 |
System and method for removing hydrocarbons from gaseous mixtures |
May. 23, 1995 |
| 5414191 |
Method of removing alkyltetralins from an alkylbenzene mixture |
May. 9, 1995 |
| 5338444 |
Process for removing mercury from organic media which also contain arsenic |
Aug. 16, 1994 |
| 5326928 |
Separation of aliphatic paraffins by adsorption |
Jul. 5, 1994 |
| 5304693 |
Process for eliminating mercury from steam cracking installations |
Apr. 19, 1994 |
| 5248488 |
Natural gas treating system |
Sep. 28, 1993 |
| 5227570 |
Process for separation of ethylbenzene or ethylbenzene/p-xylene from a xylene isomers mixture |
Jul. 13, 1993 |
| 5191138 |
Process for oxidative conversion of methane to higher hydrocarbons using metal sulfide oxidizing agent |
Mar. 2, 1993 |
| 5132486 |
Adsorption-desorption separation process for the separation of low and high octane components in virgin naphthas |
Jul. 21, 1992 |
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