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Class Information
Number: 585/259
Name: Chemistry of hydrocarbon compounds > Adding hydrogen to unsaturated bond of hydrocarbon, i.e., hydrogenation > Hydrocarbon is contaminant in desired hydrocarbon > Hydrogenation of diolefin or triple bond
Description: Subject matter wherein the contaminant has a triple bond which is hydrogenated or has two double bonds, one or both of which is hydrogenated.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7601309 |
Metathesis unit pretreatment process with formation of octene |
Oct. 13, 2009 |
| 7578926 |
Process to enhance oxidation stability of base oils by analysis of olefins using A.sup.1H NMR |
Aug. 25, 2009 |
| 7550637 |
Catalyst and process for selective hydrogenation |
Jun. 23, 2009 |
| 7525000 |
Acetylene removal methods and apparatus |
Apr. 28, 2009 |
| 7462277 |
Continuous method for separating a C.sub.4 cut |
Dec. 9, 2008 |
| 7462751 |
Catalyst and process for selective hydrogenation |
Dec. 9, 2008 |
| 7459593 |
Metathesis unit pretreatment process with formation of octene |
Dec. 2, 2008 |
| 7453016 |
Selective hydrogenation process using layered catalyst composition and preparation of said catalyst |
Nov. 18, 2008 |
| 7453017 |
Palladium-based catalyst for selective hydrogenation of acetylene |
Nov. 18, 2008 |
| 7432407 |
Hydroisomerization of olefins comprising between 4 and 6 carbon atoms |
Oct. 7, 2008 |
| 7408091 |
Process for liquid phase hydrogenation |
Aug. 5, 2008 |
| 7408090 |
Method of operating downflow boiling point reactors in the selective hydrogenation of acetylenes and dienes |
Aug. 5, 2008 |
| 7408089 |
Ni catalyst, process for making catalysts and selective hydrogenation process |
Aug. 5, 2008 |
| 7390933 |
Reduction of the Bromine Index of linear alkylbenzenes |
Jun. 24, 2008 |
| 7385097 |
Process for the purification of a diolefin hydrocarbon stream |
Jun. 10, 2008 |
| 7374667 |
Process for the production of gasoline with a low sulfur content comprising a stage for transformation of sulfur-containing compounds, an acid-catalyst treatment and a desulfurization |
May. 20, 2008 |
| 7368617 |
Selective hydrogenation of acetylenes and dienes in a hydrocarbon stream |
May. 6, 2008 |
| 7368625 |
Catalysts with high cobalt surface area |
May. 6, 2008 |
| 7351327 |
Process for the selective desulfurization of a mid range gasoline cut |
Apr. 1, 2008 |
| 7301062 |
Process for the selective hydrogenation of alkynes and/or dienes in an olefin-containing hydrocarbon stream |
Nov. 27, 2007 |
| 7297824 |
Ni hydrogenation catalysts, manufacture and use |
Nov. 20, 2007 |
| 7288686 |
Hydrogenation catalyst and hydrogenation process |
Oct. 30, 2007 |
| 7253329 |
Selective hydrogenation of cyclododecatriene to cyclododecene |
Aug. 7, 2007 |
| 7250544 |
Process for selective hydrogenation using a catalytic reactor with a hydrogen-selective membrane |
Jul. 31, 2007 |
| 7227047 |
Butadiene and isobutylene removal from olefinic streams |
Jun. 5, 2007 |
| 7208646 |
Selective hydrogenation of butadiene |
Apr. 24, 2007 |
| 7141709 |
Methods and systems of producing monoolefins by the extraction-hydrogenation of highly unsaturated hydrocarbons |
Nov. 28, 2006 |
| 7115789 |
Process for removal of alkynes and/or dienes from an olefin stream |
Oct. 3, 2006 |
| 7105711 |
Process for the selective hydrogenation of phenylacetylene |
Sep. 12, 2006 |
| 7090766 |
Process for ultra low sulfur gasoline |
Aug. 15, 2006 |
| 7087155 |
Production of olefins |
Aug. 8, 2006 |
| 7078577 |
DihydroDicyclopentadiene production |
Jul. 18, 2006 |
| 7074971 |
Recovery of ethylene and propylene from a methanol to olefin reaction system |
Jul. 11, 2006 |
| 7070690 |
Process for conversion of hydrocarbons on a catalyst with controlled acidity |
Jul. 4, 2006 |
| 7045669 |
Dual pressure catalytic distillation hydrogenation column system for the front end of an ethylene plant |
May. 16, 2006 |
| 7045670 |
Process for liquid phase hydrogenation |
May. 16, 2006 |
| 7041860 |
Process for the selective hydrogenation of alkynes |
May. 9, 2006 |
| 7038097 |
Dual bed process using two different catalysts for selective hydrogenation of acetylene and dienes |
May. 2, 2006 |
| 7038096 |
Hydrocarbon hydrogenation catalyst composition, a process of treating such catalyst composition, and a process of using such catalyst composition |
May. 2, 2006 |
| 7025872 |
Process for obtaining a feedstock that can be used in an etherification unit |
Apr. 11, 2006 |
| 7014750 |
System and process for pyrolysis gasoline hydrotreatment |
Mar. 21, 2006 |
| 7009085 |
Selective hydrogenation catalyst and processes therefor and therewith |
Mar. 7, 2006 |
| 6977317 |
Process for the selective hydrogenation of olefins |
Dec. 20, 2005 |
| 6949686 |
Pyrolysis gasoline stabilization |
Sep. 27, 2005 |
| 6867338 |
Selective hydrogenation of acetylenes and dienes in a hydrocarbon stream |
Mar. 15, 2005 |
| 6830678 |
Process of desulphurizing gasoline comprising desulphurization of the heavy and intermediate fractions resulting from fractionation into at least three cuts |
Dec. 14, 2004 |
| 6824676 |
Process for the selective desulfurization of a mid range gasoline cut |
Nov. 30, 2004 |
| 6822127 |
Selective hydrogenation catalyst for selectively hydrogenating of unsaturated olefin, process for preparing the same and its use |
Nov. 23, 2004 |
| 6794552 |
Hydrocarbon hydrogenation catalyst and process |
Sep. 21, 2004 |
| 6794553 |
Process for the telomerization of a conjugated diene, catalyst and bidentate ligand useful therein |
Sep. 21, 2004 |
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