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Class Information
Number: 585/736
Name: Chemistry of hydrocarbon compounds > Saturated compound synthesis > By isomerization > Plural isomerization stages
Description: Subject matter in which the effluent from an isomerization reaction is sent to another isomerization reaction.










Patents under this class:

Patent Number Title Of Patent Date Issued
8513480 Hydroisomerization and isomerization process using reactive rectification column Aug. 20, 2013
7727376 Process to prepare base oil from a Fisher-Tropsch synthesis product Jun. 1, 2010
7435865 Method for separating hydrocarbons and use of a zeolite therefor Oct. 14, 2008
7429685 Method for the isomerisation of a C5-C8 fraction involving two parallel reactors Sep. 30, 2008
7267758 Flexible method for producing oil bases and middle distillates with hydroisomerization-conversion followed by catalytic dewaxing Sep. 11, 2007
7250107 Flexible method for producing oil bases and distillates from feedstock containing heteroatoms Jul. 31, 2007
7132042 Production of fuels and lube oils from fischer-tropsch wax Nov. 7, 2006
6652735 Process for isomerization dewaxing of hydrocarbon streams Nov. 25, 2003
6602402 Flexible process for producing base stock and distillates by conversion-hydroisomerisation using a catalyst with low dispersion followed by catalytic dewaxing Aug. 5, 2003
6503465 Two-stage isomerization of saturated C6 hydrocarbons Jan. 7, 2003
6133496 Two-stage isomerization of saturated C.sub. 6 hydrocarbons Oct. 17, 2000
5994607 Paraffin isomerization process comprising fractionation having at least two draw-off levels associated with at least two isomerization zones Nov. 30, 1999
5831140 Isomerization process comprising fractionation having at least two draw-off levels associated with at least two isomerization zones Nov. 3, 1998
5770042 Upgrading of cyclic naphthas Jun. 23, 1998
5763730 Process for alkane isomerization using reactive chromatography Jun. 9, 1998
5744684 Process for alkane isomerization using reactive chromatography and reactive desorbent Apr. 28, 1998
5744683 Process for continuous reaction and deparation using reactive chromatography Apr. 28, 1998
5530173 Process for alkane isomerization using reactive chromatography and reactive desorbent Jun. 25, 1996
5530172 Process for alkane isomerization using reactive chromatography Jun. 25, 1996
5326925 Isomerization process for 2,3-dimethylbutane production Jul. 5, 1994
5227554 Isomerization process Jul. 13, 1993
5139645 Process for producing gasoline components Aug. 18, 1992
4919786 Process for the hydroisomerization of was to produce middle distillate products (OP-3403) Apr. 24, 1990
4832819 Process for the hydroisomerization and hydrocracking of Fisher-Tropsch waxes to produce a syncrude and upgraded hydrocarbon products May. 23, 1989
4554065 Isomerization process to produce low pour point distillate fuels and lubricating oil stocks Nov. 19, 1985
4311867 Process for isomerizing hydrocarbons Jan. 19, 1982
4144282 Octane upgrading of light naphtha streams using a fluorosulfonic acid, hydrofluoric acid and antimony pentafluoride catalyst Mar. 13, 1979
4049539 Two-stage process for upgrading naphtha Sep. 20, 1977
3974061 Isomerization of C.sub.5 and C.sub.6 isomerizable hydrocarbons Aug. 10, 1976











 
 
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