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Class Information
Number: 208/230
Name: Mineral oils: processes and products > Refining > Sulfur removal (free or combined sulfur) > With alkali or alkali earth metal compound (except clays) > Alkali metal compound
Description: Processes wherein an alkali metal compound is employed.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7588680 |
Desulphurization of petroleum streams using metallic sodium |
Sep. 15, 2009 |
| 7534340 |
Process for the preparation of middle distillates and lube bases starting from synthetic hydrocarbon feedstocks |
May. 19, 2009 |
| 7527724 |
Process for desulfurization of hydrocarbons |
May. 5, 2009 |
| 7507327 |
Desulfurizing organosulfur heterocycles in feeds with supported sodium |
Mar. 24, 2009 |
| 7435337 |
Use of caesium-exchanged faujasite type zeolites for intense desulphurization of a gasoline cut |
Oct. 14, 2008 |
| 7374666 |
Oxidative desulfurization of sulfur-containing hydrocarbons |
May. 20, 2008 |
| 7326822 |
Method for treating sour gas |
Feb. 5, 2008 |
| 7207445 |
Device and method for non-dispersive contacting of liquid--liquid reactive system |
Apr. 24, 2007 |
| 7192516 |
Desulfurization of petroleum streams using metallic sodium |
Mar. 20, 2007 |
| 7029573 |
Composition and control method for treating hydrocarbon |
Apr. 18, 2006 |
| 7014751 |
Continuous liquid hydrocarbon treatment method |
Mar. 21, 2006 |
| 6960291 |
Naphtha desulfurization method |
Nov. 1, 2005 |
| 6955753 |
Treatment of crude oils |
Oct. 18, 2005 |
| 6860999 |
Liquid hydrocarbon treatment method |
Mar. 1, 2005 |
| 6840429 |
Method of and composition for treating a non-metallic refractory material for brazing |
Jan. 11, 2005 |
| 6767452 |
Process for treatment of petroleum acids |
Jul. 27, 2004 |
| 6749741 |
Apparatus and process for prewashing a hydrocarbon stream containing hydrogen sulfide |
Jun. 15, 2004 |
| 6743961 |
Olefin production utilizing whole crude oil |
Jun. 1, 2004 |
| 6623627 |
Production of low sulfur gasoline |
Sep. 23, 2003 |
| 6547959 |
Method for treating hazardous and corrosion-inducing sulfur compounds |
Apr. 15, 2003 |
| 6306288 |
Process for removing sulfur compounds from hydrocarbon streams |
Oct. 23, 2001 |
| 6224750 |
Producing low sulfur hydrocarbons with biologically regenerated caustic |
May. 1, 2001 |
| 6190541 |
Process for treatment of petroleum acids (LAW824) |
Feb. 20, 2001 |
| 5997731 |
Process for treating an effluent alkaline stream having sulfur-containing and phenolic compounds |
Dec. 7, 1999 |
| 5961819 |
Treatment of sour hydrocarbon distillate with continuous recausticization |
Oct. 5, 1999 |
| 5954949 |
Conversion of heavy petroleum oils to coke with a molten alkali metal hydroxide |
Sep. 21, 1999 |
| 5935421 |
Continuous in-situ combination process for upgrading heavy oil |
Aug. 10, 1999 |
| 5904839 |
Process for upgrading heavy oil using lime |
May. 18, 1999 |
| 5865989 |
Process for sweetening liquid hydrocarbons |
Feb. 2, 1999 |
| 5858212 |
Desulfurization and hydrocarbon quality enhancement process |
Jan. 12, 1999 |
| 5820766 |
Reduction of sulfide in fluids |
Oct. 13, 1998 |
| 5674378 |
Dynamic mixer process with continuous caustic phase for removal of elemental sulfur from organic fluids |
Oct. 7, 1997 |
| 5611910 |
Method for reducing sulfur emissions in processing air-blown asphalt |
Mar. 18, 1997 |
| 5601700 |
Scavenging of hydrogen sulphide |
Feb. 11, 1997 |
| 5525233 |
Process for the removal of elemental sulfur from fluids by mixing said fluid with an immiscible solution of alcoholic caustic and an inorganic sulfide or hydrosulfide |
Jun. 11, 1996 |
| 5525211 |
Selective hydrodesulfurization of naphtha using selectively poisoned hydroprocessing catalyst |
Jun. 11, 1996 |
| 5441630 |
Hydrodesulfurization process |
Aug. 15, 1995 |
| 5364524 |
Process for treating heavy oil |
Nov. 15, 1994 |
| 5340466 |
Hydrodesulfurization of cracked naphtha with hydrotalcite-containing catalyst |
Aug. 23, 1994 |
| 5250181 |
Process for removing elemental sulfur from fluids |
Oct. 5, 1993 |
| 5208382 |
Reducing copper corrosiveness of organic sulfides |
May. 4, 1993 |
| 5160045 |
Process for removing elemental sulfur from fluids |
Nov. 3, 1992 |
| 5087350 |
Process for recovering metals and for removing sulfur from materials containing them by means of an oxidative extraction |
Feb. 11, 1992 |
| 5034118 |
Non-oxidative removal of hydrogen sulfide from gaseous, petrochemical, and other streams |
Jul. 23, 1991 |
| 4849577 |
Process for eliminating jointly arsenic and carbon oxysulfide from an unsaturated hydrocarbon cut in the liquid phase |
Jul. 18, 1989 |
| 4835338 |
Process for removal of carbonyl sulfide from organic liquid by adsorption using alumina adsorbent capable of regeneration |
May. 30, 1989 |
| 4786405 |
Method of desulfurizing and deodorizing sulfur bearing hydrocarbon feedstocks |
Nov. 22, 1988 |
| 4623445 |
Sodium tetrachloroaluminate catalyzed process for the molecular weight reduction of liquid hydrocarbons |
Nov. 18, 1986 |
| 4601816 |
Upgrading heavy hydrocarbon oils using sodium hypochlorite |
Jul. 22, 1986 |
| 4571445 |
Process for removal of sulfur compounds from conjugated diolefins |
Feb. 18, 1986 |
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