Patents for C10G 53 - Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes (1,942) |
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08/19/1997 | US5659106 Dual zone catalytic distillation in substantial absence of hydrogen; mercaptans are reacted with olefins using acid resin as thioetherification catalyst to form thioethers and removed, rest of olefin is oligomerized using second catalyst |
08/13/1997 | CN1156751A Crude oil atmospheric vacuum rectifying process with extractive distillation zone |
07/02/1997 | EP0781314A1 Gasoline upgrading process |
06/18/1997 | CN1152020A Residual oil-refining modification process |
05/15/1997 | DE19620695C1 Cleaning oils and fats by an adsorptive process in multistage counterflow operation |
03/19/1997 | EP0763588A1 Process for eliminating i-alkenes from hydrocarbon mixtures |
02/19/1997 | CN1143383A Removing contaminants from oil |
01/29/1997 | EP0697032B1 Process for the removal of mercury |
01/09/1997 | WO1997000926A1 Method for preparing lubricating oils |
01/01/1997 | CN1139146A Refining process of base oil for lubricating oil |
12/04/1996 | EP0745113A1 Removal of contaminants from oil |
11/12/1996 | US5573656 Process for converting acid sludge to asphalt |
10/31/1996 | WO1996033621A1 Sorptive purification for edible oils |
10/16/1996 | CN1133338A Combination process for producing fine quality catalytic cracking raw material |
08/14/1996 | EP0678116A4 Process for recovery of tank bottom wastes. |
05/17/1996 | WO1996014369A1 Process for isolating mesophase pitch |
05/15/1996 | CN1122608A Process for the removal of mercury |
05/07/1996 | US5514272 Heating, cooling, oxidizing; allowing acid sludge to settle; adding polishing agent and separating |
04/23/1996 | US5510565 High temperature heat treatment; adsorption |
04/23/1996 | US5510564 N-paraffin purification process with removal of aromatics |
04/23/1996 | US5510016 Gasoline upgrading process |
03/14/1996 | WO1996007713A1 Gasoline upgrading process |
03/14/1996 | CA2195638A1 Gasoline upgrading process |
02/21/1996 | EP0697032A1 Process for the removal of mercury |
02/14/1996 | CN1030995C Removal of arsenic compounds from light hydrocarbon streams |
02/06/1996 | US5489374 Liquid/liquid solvent extraction of a heat soaked isotropic pitch; materials handling |
01/10/1996 | EP0548073A4 Process for the recovery of oil from waste oil sludges |
11/22/1995 | CN1112154A Process for petroleum solvent refining of fine chemical products |
11/22/1995 | CN1030331C Process for refining distillate oil |
11/21/1995 | CA1337598C Silicone oil recovery |
10/26/1995 | WO1995028458A1 Method for reducing mutagenicity of petroleum products |
10/25/1995 | EP0678116A1 Process for recovery of tank bottom wastes |
10/11/1995 | CN1109906A Mercury removal from liquid hydrocarbon fraction |
08/24/1995 | WO1995022589A1 Process for re-refining oil without acid sludge generation |
08/17/1995 | WO1995021902A1 Removal of contaminants from oil |
08/17/1995 | CA2183433A1 Removal of contaminants from oil |
08/09/1995 | CN1029482C Process for removing peculiar smell from kerosene fraction |
07/25/1995 | US5435918 Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase |
07/18/1995 | US5434328 Restructuring of olefins |
06/28/1995 | EP0659869A1 Mercury removal from liquid hydrocarbon fraction |
05/17/1995 | EP0562005B1 Integrated solvent extraction/membrane extraction with retentate recycle for improved raffinate yield |
05/16/1995 | US5416259 Contacting with adsorbent |
05/09/1995 | US5413698 Hydrocarbon upgrading process |
05/09/1995 | US5413697 Gasoline upgrading process |
05/09/1995 | US5413696 Low sulfur gasoline by hydrodesulfurization of naphtha |
04/18/1995 | US5407559 Hydrodesulfurizing in first reaction zone; contacting product with ZSM-12 acidic catalyst in second reaction zone to restore octane |
03/30/1995 | WO1995008606A1 Feed pretreatment for pervaporation process |
03/21/1995 | US5399258 Hydrodesulfurization, octane number, heating |
02/14/1995 | US5389240 Passing feedstock through a bed of certain metal oxide solid solutions related to hydrotalcites |
01/24/1995 | US5384040 Demetallization of hydrocarbons |
11/10/1994 | WO1994025540A1 Process for the removal of mercury |
11/10/1994 | CA2162160A1 Process for the removal of mercury |
11/08/1994 | US5362376 Gasoline upgrading process using large crystal intermediate pore size zeolites |
11/01/1994 | USH1368 Method for improving the long-term color stability of jet fuel |
10/12/1994 | EP0618959A1 Process to re-refine used oils |
10/11/1994 | US5354429 Purification by fractional distillion and solvent extraction with a polyhydric alcohol |
10/04/1994 | US5352354 Gasoline upgrading process |
09/20/1994 | US5348641 Gasoline upgrading process |
08/30/1994 | US5342508 Method of adsorptive purification of vegetable and/or mineral oils and fats |
07/21/1994 | WO1994016036A1 Gasoline upgrading process |
07/05/1994 | US5326463 Gasoline upgrading process |
07/05/1994 | US5326462 Gasoline upgrading process |
07/05/1994 | US5326385 Absorption, membrane separation |
06/22/1994 | EP0591218A4 Non-carcinogenic bright stock extracts and deasphalted oils and process for the production thereof |
06/07/1994 | US5318690 Gasoline upgrading process |
06/07/1994 | CA1330063C De-asphalting process of a heavy hydrocarbon stock |
06/01/1994 | EP0599702A1 Process for removing mercury and optionally arsenic from hydrocarbons |
05/11/1994 | WO1994010262A1 Gasoline upgrading process |
05/04/1994 | CN1086252A Process to re-refine used oils |
05/03/1994 | US5308471 Hydrodesulfurization of naphtha, improved octane number, gasoline |
05/03/1994 | US5308470 Non-carcinogenic asphalts and asphalt blending stocks |
04/14/1994 | WO1994007798A1 Process to re-refine used oils |
04/13/1994 | EP0591218A1 Non-carcinogenic bright stock extracts and deasphalted oils and process for the production thereof |
03/29/1994 | US5298150 Gasoline upgrading process |
12/21/1993 | US5271835 Process for removal of trace polar contaminants from light olefin streams |
12/14/1993 | US5269906 Process for the recovery of oil from waste oil sludges |
11/09/1993 | US5259945 Process for recovery of tank bottom wastes |
11/02/1993 | CA1323841C Removal of basic nitrogen compounds from extracted oils by use of acidic polar absorbents and the regeneration of said absorbents |
10/20/1993 | EP0460015B1 Solvent extraction process |
10/19/1993 | CA1323321C Process for removal of mercury from a liquid hydrocarbon |
10/14/1993 | DE4212245A1 Continuous processing of oil sludge - to recover clean oil by removing water, salts and solids |
10/13/1993 | EP0565324A1 Method of recovering organic sulfur compound from liquid oil |
09/16/1993 | DE4208182A1 Hydrocarbon-contg. mixt. sepn. by solvent extn. - esp. for treating oil sludge from bitumen prodn. from tar sands |
09/16/1993 | DE4208180A1 Solids or sludge sepn. by solvent extn. - esp. for extn. of difficultly volatile hydrocarbon(s) from tar sands or contaminated soil |
09/13/1993 | CA2091507A1 Process for separating mixtures of solids or sludges which contain non-volatile hydrocarbons and other accompanying substances |
09/01/1993 | EP0557286A1 Process for recovery of oil from waste oil sludges |
08/10/1993 | US5234597 Selective extraction of aromatic hydrocarbons from a mixture with non-aromatic hydrocarbons |
06/30/1993 | EP0548073A1 Process for the recovery of oil from waste oil sludges |
06/09/1993 | EP0545814A1 Natural cresylic acid processing |
05/26/1993 | CN1020917C Mercury removal from liquid hydrocarbon compound |
05/18/1993 | CA1317892C Chemical processing with an operational step sensitive to a feedstream component |
05/05/1993 | CN1071684A Refining process for distillating oil |
03/18/1993 | DE4205885C1 System for sepg. oil slops or emulsions into water, petrol, oil and solids - in which slop oil is heated in circuit comprising heater, column and pump and slop oil from bottom of column is cooled and sepd. into clean oil phase and solid phase |
03/11/1993 | DE4131406C1 Lubricating oil fraction prepn. for high quality engine base oil - by distilling oil, sepg. vacuum distilling in base for naphthenic acid neutralisation, collecting fraction, extracting prod. contg. furfurol and dewaxing |
02/17/1993 | CN1069055A Removal of arsenic compounds from light hydrocarbon streams |
02/10/1993 | EP0527000A2 Sulphur removal process |
02/07/1993 | CA2075455A1 Sulphur removal process |
02/03/1993 | EP0525602A2 Removal of arsenic compounds from light hydrocarbon streams |
01/27/1993 | EP0524534A2 Process and device for the adsorptive purification of vegetable and/or mineral oils and fats |
01/24/1993 | CA2074451A1 Method and apparatus for the adsorptive purification of vegetable and/or mineral oils and fats |