| Patents for C10G 19 - Refining hydrocarbon oils, in the absence of hydrogen, by alkaline treatment (954) |
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| 03/25/1999 | WO1999013957A1 Methods of inhibiting foam formation in alkanolamine systems |
| 03/23/1999 | US5885487 Corrosion inhibitor for alkanolamine units |
| 03/23/1999 | US5885422 Countercurrent solvent extraction of spent caustic to remove conjugated diene impurities followed by in situ steam distillation to remove residual solvent; by-product inhibition, antifouling agents |
| 03/09/1999 | US5879534 Non-enolizable oxygenates as anti foulants in ethylene dichloride manufacture |
| 03/04/1999 | WO1999010444A1 Corrosion inhibitor for alkanolamine units |
| 03/04/1999 | CA2301115A1 Corrosion inhibitor for alkanolamine units |
| 03/02/1999 | US5877386 Using triethanolamine; neutralization of acid gas |
| 02/16/1999 | US5871637 Mixing a heavy oil with water and alkaline hydroxide, recovering heavy oil of decreased viscosity and corrosivity, reaction a metal sulfide with hydrogen sulfide to form metal hydrosulfide and regeneration of alkaline earth metal |
| 02/11/1999 | DE19734253A1 Thermally self-supporting process eliminating organic acids from hydrocarbon stream |
| 02/10/1999 | EP0873381A4 Process for decreasing the corrosivity and acidity of petroleum crudes |
| 02/02/1999 | US5865989 Process for sweetening liquid hydrocarbons |
| 01/12/1999 | US5858212 Desulfurization and hydrocarbon quality enhancement process |
| 12/02/1998 | EP0881274A2 Process for decreasing acidity of a crude oil |
| 11/18/1998 | CN1199417A Process for decreasing acid content and corrosivity of crudes |
| 10/28/1998 | EP0873381A1 Process for decreasing the corrosivity and acidity of petroleum crudes |
| 09/24/1998 | WO1998041727A1 Waste component removal from crude oil or gas |
| 09/24/1998 | CA2281791A1 Waste component removal from crude oil or gas |
| 09/23/1998 | CN1193990A Process for decreasing the acid content and corrosivity of crudes |
| 09/23/1998 | CN1193654A Simple method for treating acid residuals of petroleum |
| 09/03/1998 | WO1998037937A1 Spent caustic (pre)treatment process |
| 08/05/1998 | EP0856040A1 Process for neutralization of petroleum acids using overbased detergents |
| 07/02/1998 | WO1998028381A1 Corrosion inhibitor |
| 06/23/1998 | US5770041 Non-enolizable oxygenates as antifoulants |
| 02/18/1998 | EP0824142A2 Inhibiting fouling deposits in alkaline scrubbers |
| 02/12/1998 | CA2212684A1 Caustic tower trap for acetaldehyde |
| 02/03/1998 | US5714055 Caustic tower trap for acetaldehyde |
| 01/08/1998 | WO1998000478A1 Desulfurization and hydrocarbon quality enhancement process |
| 12/23/1997 | US5700368 Adding inhibiting agents such as benzoic hydrazide or tert-butyl hydroperoxide |
| 12/11/1997 | WO1997046638A1 Process for desulfurization of petroleum feeds |
| 11/11/1997 | US5686016 Oxygen scavenging solutions for reducing corrosion by heat stable amine salts |
| 11/04/1997 | US5683626 Reaction of naphthenic acid containing crude oil with tetramethylammonium hydroxide |
| 10/15/1997 | EP0800567A2 Method for demetallating refinery feedstreams |
| 10/07/1997 | US5674378 Contacting petroleum fluid containing elemental sulfure with an immisicible treatment solution containing metal sulfide, or hydrosulfide, caustic, water, immiscible alcohol to form metal polysulfides |
| 09/17/1997 | CN1159767A Desulfurization of incondensible gases from the vacuum distillation of crude oil |
| 08/06/1997 | EP0772485A4 Desulfurization of incondensible gases from the vacuum distillation of crude oil |
| 07/08/1997 | US5645713 Three phase removal of halides from liquid hydrocarbons |
| 07/03/1997 | WO1997023583A1 Removal of halogens wiht caustic clogged inert support |
| 07/01/1997 | US5643439 Process for neutralization of petroleum acids using alkali metal trialkylsilanolates |
| 06/03/1997 | US5635056 Contacting with sodium hydroxide to form sodium sulfide; contacting sodium sulfide with water and a transition metal to form transition metal sulfide, sodium hydroxide, hydrogen and impurities |
| 05/14/1997 | EP0772485A1 Desulfurization of incondensible gases from the vacuum distillation of crude oil |
| 05/06/1997 | US5626742 Continuous in-situ process for upgrading heavy oil using aqueous base |
| 04/15/1997 | US5620589 Chemically active vapor/liquid separator |
| 04/09/1997 | EP0767156A1 Improved method and composition for sweetening of liquefied petroleum gas |
| 03/18/1997 | US5611913 Producing a low halide reformate using a platinum and halogen containing reforming catalyst |
| 03/06/1997 | WO1997008275A1 Process for neutralization of petroleum acids using overbased detergents |
| 03/06/1997 | WO1997008271A1 Process for decreasing the corrosivity and acidity of petroleum crudes |
| 03/06/1997 | WO1997008270A1 Process for decreasing the acid content and corrosivity of crudes |
| 03/04/1997 | US5607576 Two phase treatment of gas to remove halogens |
| 02/11/1997 | US5601702 Removal of acidic halides from gas streams |
| 01/21/1997 | US5595648 Two phase removal of halides from liquid hydrocarbons cross-reference to related applications |
| 12/10/1996 | US5582808 Borohydrides to inhibit polymer formation in petrochemical caustic scrubbers |
| 11/28/1996 | WO1996037279A1 Treatments to reduce aldol condensation and subsequent polymerization in caustic acid gas scrubbers |
| 11/14/1996 | WO1996035500A1 Treatments to reduce aldol condensation and subsequent polymerization in diethanolamine scrubbers |
| 11/03/1996 | CA2174463A1 Continuous in-situ process for upgrading heavy oil using aqueous base |
| 11/03/1996 | CA2173896A1 Continuous in-situ process for upgrading heavy oil using aqueous base |
| 07/04/1996 | WO1996020133A1 Method for demetallating refinery feedstreams |
| 07/04/1996 | CA2208565A1 Method for demetallating refinery feedstreams |
| 06/25/1996 | US5529684 Electrolytically demetallating petroleum stream with aqueous electrolysis medium |
| 06/18/1996 | US5527447 Hydrogen peroxide, hydroperoxides, nitroalkanes, salts of hypochloruous acid, alkyl substituted aldehyde oximes, trialkyl phosphites, isothiuranium salts, 2-mercaptoethanol, and benzoic hydrazide |
| 06/12/1996 | CN1124274A Method for removing nitride from oil |
| 06/11/1996 | US5525233 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 |
| 05/15/1996 | EP0711580A1 Method of decomposing halogenated aromatic compound with alkaline substance |
| 02/08/1996 | WO1996003198A1 Desulfurization of incondensible gases from the vacuum distillation of crude oil |
| 02/08/1996 | CA2195631A1 Desulfurization of incondensible gases from the vacuum distillation of crude oil |
| 12/19/1995 | US5476987 Solvent extraction using sulfolane and 1,3-dimethylimidazolidinone |
| 12/06/1995 | CN1030463C Method for refinery prodn. of light petroleum fraction |
| 11/02/1995 | WO1995028993A1 Method of decomposing halogenated aromatic compound with alkaline substance |
| 10/18/1995 | EP0677091A1 Method of working up tar and similar products, use of the resulting products and fuels obtained by means of the method |
| 09/13/1995 | CN1108292A Method for refining of diesel oil |
| 08/29/1995 | US5446233 Ethylene plant caustic system emulsion breaking with salts of alkyl sulfonic acids |
| 07/18/1995 | US5434329 Treatment of spent refinery caustic |
| 03/22/1995 | EP0644250A1 Ethylene plant caustic system emulsion breaking with salts of alkyl aryl sulfonic acids |
| 01/25/1995 | CN1097793A Method for improving oil stability for refining shale oil by adding lime |
| 07/07/1994 | WO1994014922A1 Method of working up tar and similar products, use of the resulting products and fuels obtained by means of the method |
| 07/07/1994 | CA2152786A1 A method of processing tar and similar products, the use of the resulting products, and fuels obtainable by the method |
| 07/05/1994 | CA2111176A1 Membrane process to remove elemental sulfur from gasoline |
| 06/29/1994 | EP0603400A1 Method of removing halogenated aromatic compound from hydrocarbon oil |
| 06/08/1994 | CN1087607A Combined dephenolizing method of waste water-tar |
| 02/22/1994 | US5288394 Using a hydrazide compound |
| 12/23/1993 | WO1993025636A1 Method for desulfurization of liquid fuels and petrochemical feedstocks |
| 12/23/1993 | WO1993025635A1 Method of removing halogenated aromatic compound from hydrocarbon oil |
| 12/23/1993 | CA2114840A1 Method of removing halogenated aromatic compound from hydrocarbon oil |
| 12/15/1993 | CN1079497A Method for removal of halogenated aromatic compound from hydrocarbon oil |
| 12/14/1993 | US5269906 Process for the recovery of oil from waste oil sludges |
| 09/14/1993 | US5244576 Spent caustic treatment |
| 09/01/1993 | EP0557286A1 Process for recovery of oil from waste oil sludges |
| 05/11/1993 | US5209828 Sodium hydroxide, water, sewage treatment, flashing, condensing |
| 04/21/1993 | CN1071189A Method for refinery produciton of light petroleum fraction |
| 04/06/1993 | US5199978 Process for removing elemental sulfur from fluids |
| 11/18/1992 | CN1019129B Inhibiting emulsification in alkali wash process of straight-run oils by adding additives |
| 11/03/1992 | US5160425 Method of inhibiting formation of fouling materials during basic washing of hydrocarbons contaminated with oxygen compounds |
| 10/21/1992 | EP0509964A1 Process for the treatment of spent aqueous solutions of caustic soda used for purification and washing of petroleum products |
| 10/11/1992 | CA2040196A1 Deashing of heavy hydrocarbon residues |
| 07/21/1992 | US5132006 Alkali Metal Alcoholate |
| 07/14/1992 | CA1304911C Sulfur removal from hydrocarbons |
| 05/19/1992 | US5114566 Crude oil desalting process |
| 05/14/1992 | WO1992008770A1 Process for recovery of oil from waste oil sludges |
| 05/14/1992 | CA2096247A1 Process for recovery of oil from waste oil sludges |
| 01/22/1992 | CN1058038A Method for preventing catalytic-cracked oil products from colour change |
| 11/21/1991 | DE4015889A1 Reconditioning de:phenolated carbolic oil - by adjusting pH before distn. by slowly adding aq. lye soln. |