| Patents for C10G 21 - Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents (2,651) |
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| 05/04/2000 | WO2000024845A1 Additive enhanced solvent deasphalting process |
| 05/04/2000 | CA2345617A1 Additive enhanced solvent deasphalting process |
| 04/27/2000 | WO2000023540A1 Deep conversion combining the demetallization and the conversion of crudes, residues or heavy oils into light liquids with pure or impure oxygenated compounds |
| 04/26/2000 | EP0931122A4 Co 2? treatment to remove calcium from crude |
| 04/25/2000 | US6054496 Separating distillable components of heavy crude oil by distillation and solvent deasphalting and converting asphaltic residual portion of heavy crude oil in fluidized bed to heat or steam or electricity or synthesis gas |
| 02/23/2000 | EP0980415A1 Selective re-extraction of lube extracts to reduce mutagenicity index |
| 02/10/2000 | WO2000006670A1 Integration of solvent deasphalting and gasification |
| 02/02/2000 | CN1243147A Method for improving stability of liquid petroleum product |
| 01/26/2000 | EP0973845A1 Method and system for generating power from residual fuel oil |
| 01/25/2000 | US6018051 Processing for washing-out degradation-resistant organic chlorine compound |
| 12/28/1999 | US6007722 Extraction method |
| 12/15/1999 | CN1238370A Application of C5H4O2 in extraction and separation of crude oil |
| 11/18/1999 | WO1999058625A1 Removal of impurities from a hydrocarbon component or fraction |
| 11/17/1999 | EP0956124A1 Extraction method |
| 11/02/1999 | US5976357 Mixing a polyether collection polymer which is insoluble in oil and liquid at room temperature and which has a density which is higher than the oil and separating polymer and oil by gravity such that the oil forms a top phase |
| 10/20/1999 | EP0950703A2 Processing oil and method for producing the same |
| 10/20/1999 | CN1232487A CO2 treatment to remove calcium from crude |
| 10/12/1999 | US5965784 Bringing feedstock into intimate countercurrent contact with solvent immiscible with feedstock to extract aromatic compounds; separating immiscible phases to produce raffinate and extract rich in aromatic compounds; separation |
| 10/12/1999 | US5964987 Purification of natural cresylic acid product by distilling to produce phenolic mixture; countercurrent liquid/liquid fractional extraction using heavy phase solvent of mixture of glycerol and polyhydric alcohol and light phase solvent |
| 10/07/1999 | WO1999050376A1 Removal of naphthenic acids in crude oils and distillates |
| 10/07/1999 | WO1999050375A1 Removal of naphthenic acids in crude oils and distillates |
| 10/07/1999 | CA2323051A1 Removal of naphthenic acids in crude oils and distillates |
| 10/07/1999 | CA2322223A1 Removal of naphthenic acids in crude oils and distillates |
| 10/05/1999 | US5961821 Removal of naphthenic acids in crude oils and distillates |
| 09/28/1999 | US5958352 Scavenging sulfhydril compounds from sour aqueous and sour hydrocarbon substrates with a trimer of ammonia and aldehyde |
| 09/08/1999 | EP0940466A2 Method of refining waste oil |
| 09/07/1999 | US5948242 Refining heavy crude oil-in-water emulsion by dilution with a light hydrocarbon, demulsification by flashing, recovering separated crude oil from remaining liquid effluent |
| 08/31/1999 | US5944984 Evaporative solvent recovering; reducing heat needed |
| 08/19/1999 | WO1999041338A1 Raffinate hydroconversion process |
| 08/19/1999 | WO1999041337A1 Improved wax hydroisomerization process |
| 08/19/1999 | WO1999041327A1 Hydroconversion process for making lubricating oil basestocks |
| 08/19/1999 | CA2319146A1 Improved wax hydroisomerization process |
| 08/10/1999 | US5935417 Hydroconversion process for making lubricating oil basestocks |
| 08/10/1999 | US5935416 Preparing lubricating oil basestocks having a high saturates content, high viscosity indices and low volatilities by hydroconversion, followed by a cold hydrofinishing step, catalytic dewaxing and solvent dewaxing |
| 08/04/1999 | EP0933418A2 Rubber process oil and production process thereof |
| 07/28/1999 | EP0931122A1 Co 2? treatment to remove calcium from crude |
| 07/13/1999 | US5922193 Addition of ethers or aldehydes to furfural for aromatic extractions |
| 07/07/1999 | CN1222181A Method of preparing low-sulphur aliphatic compounds |
| 07/06/1999 | US5919355 Fractioning solvent deasphalting plant applies a solvent whose critical temperature is tc to a hydrocarbon feed containing asphaltenes and atmospheric distillate having fractions that boil above about tc-50.degree f |
| 07/06/1999 | CA2107376C Process for producing low viscosity lubricating base oil having high viscosity index |
| 06/30/1999 | CN1221018A Method for demetal from masrolar D using compound containing sulfur and phosphorus |
| 06/30/1999 | CN1221017A Method for demetal from masrolar D using compound containing phosphorus |
| 06/22/1999 | US5914010 Strippers in which respective solvent-containing deasphalted oil and asphaltene streams are desolventized after being preheated using noncontaminated/nondegraded deasphalted oil product stream as heat exchanger fluid |
| 06/15/1999 | US5911875 Method and system for generating power from residual fuel oil |
| 05/26/1999 | CN1217367A Process for regenerating aromatic hydrocarbon extraction solvent |
| 05/12/1999 | EP0784645B1 Process for producing oligoamines or polyamines |
| 04/22/1999 | WO1999019425A1 Process for upgrading heavy crude oil production |
| 03/31/1999 | EP0904336A1 Method of preparing low-sulphur aliphatic compounds |
| 03/18/1999 | WO1999013024A1 Method for converting a heavy crude oil produced via a wellbore from a subterranean formation into a distillate product stream using a solvent deasphalting process |
| 03/17/1999 | EP0901998A1 Neutral oil removal from natural cresylic acid mixtures |
| 03/11/1999 | WO1999011740A1 Aromatics separation process and method of retrofitting existing equipment for same |
| 03/11/1999 | CA2302681A1 Aromatics separation process and method of retrofitting existing equipment for same |
| 03/10/1999 | EP0900835A2 Direct fired convection heating in residuum oil solvent extraction process |
| 03/09/1999 | US5880325 Aromatics extraction from hydrocarbon oil using tetramethylene sulfoxide |
| 03/09/1999 | US5879540 Solvent extraction, stripping, condensing, separating, ion exchanging, washing and recycling |
| 03/02/1999 | US5877386 Using triethanolamine; neutralization of acid gas |
| 02/28/1999 | CA2214305A1 Process for the separation of aromatic hydrocarbons from a mixed feed stock |
| 12/29/1998 | US5853563 Treatment of waste petroleum |
| 12/08/1998 | US5846453 Process for producing oligoamines or polyamines |
| 12/02/1998 | CN1200396A Method for regeneration of waste heat conducting oil |
| 12/01/1998 | US5843303 Direct fired convection heating in residuum oil solvent extraction process |
| 12/01/1998 | US5843302 Solvent deasphalting unit capable of generating power |
| 12/01/1998 | US5843301 Electrodynamic-chemical processing for beneficiation of petroleum residue |
| 11/25/1998 | EP0859750A4 Addition of co-solvents to furfural for aromatic extractions |
| 11/04/1998 | CN1197834A Process for refining of diesel oil by solvent extraction of catalytic diesel oil to denitrify |
| 10/28/1998 | CN1197104A Method of extracting acid agent and nitrides from denitrified residual in prodn. of lubricating oil basic oil |
| 10/15/1998 | WO1998045387A1 Method and system for generating power from residual fuel oil |
| 10/15/1998 | CA2286160A1 Method and system for generating power from residual fuel oil |
| 10/08/1998 | WO1998044075A1 Selective re-extraction of lube extracts to reduce mutagenicity index |
| 10/08/1998 | CA2282395A1 Selective re-extraction of lube extracts to reduce mutagenicity index |
| 10/07/1998 | CN1195017A Process for extracting crude oil from waste oil sludge |
| 10/06/1998 | US5817517 Constituent classes, lumps, 14 different molecular types in 4 different boiling range fractions |
| 10/01/1998 | WO1998042410A1 Process for extraction of halocarbon compounds from hydrophobic matrices |
| 09/16/1998 | CN1193040A Combined technology of delayed coking and solvent extracting |
| 09/08/1998 | US5804060 Method of and apparatus for producing power in solvent deasphalting units |
| 08/26/1998 | EP0859750A1 Addition of co-solvents to furfural for aromatic extractions |
| 07/08/1998 | EP0763076A4 Process for reducing the level of sulfur in a refinery process stream and/or crude oil |
| 06/17/1998 | CN1184842A Extraction method for faulty wax oil solvent |
| 06/11/1998 | WO1998024517A1 Process for the removal of contaminants |
| 05/28/1998 | DE19746245A1 Removal of crude oil (products) |
| 05/20/1998 | EP0745113A4 Removal of contaminants from oil |
| 05/19/1998 | US5753102 Process for recovering organic sulfur compounds from fuel oil |
| 05/07/1998 | DE19644600A1 Apparatus for completely deasphalting crude oils |
| 05/06/1998 | EP0839891A2 Process for obtaining aromatic oils having a polycyclic aromatics content of less than 3% which are useful as process oils |
| 04/16/1998 | WO1998015361A1 Method of washing and eliminating difficultly decomposable organic chlorine compounds |
| 04/09/1998 | WO1998014534A1 Co2 treatment to remove calcium from crude |
| 04/08/1998 | EP0833878A1 Method for preparing lubricating oils |
| 03/26/1998 | WO1998011971A1 Process and apparatus for solvent-deasphalting residual oil containing asphaltenes |
| 03/25/1998 | CN1176990A Method for producing olefines by steam cracking heavy gas oil or raffinate oil from solvent extraction |
| 03/18/1998 | CN1176295A Double-solvant extraction for inferior paraffin base oil |
| 01/07/1998 | EP0816473A1 Non-carcinogenic bright stock extracts and deasphalted oils and process for the production thereof |
| 12/18/1997 | WO1997047707A1 Method of preparing low-sulphur aliphatic compounds |
| 12/18/1997 | DE19623291A1 Verfahren zur Herstellung von schwefelarmen aliphatischen Verbindungen A process for producing low-sulfur aliphatic compounds |
| 12/18/1997 | CA2257912A1 Method of preparing low-sulphur aliphatic compounds |
| 12/16/1997 | US5699270 Method for preparing lubrication oils (LAW232) |
| 11/18/1997 | US5688335 Contaminant removal from material |
| 10/07/1997 | US5675043 Solvent extraction |
| 09/25/1997 | WO1997034966A1 Solvent deasphalting unit and method for using the same |
| 09/24/1997 | CN1160409A Process for producing oligoamines or polyamines |
| 09/17/1997 | EP0680505B1 Treatment of waste petroleum |