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