| Patents for C10G 31 - Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for (2,775) |
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| 02/03/1981 | US4248686 For removal of fine solid particles from liquefaction product |
| 01/06/1981 | US4243513 Method of increasing yield of petroleum pitch |
| 11/26/1980 | EP0019351A1 Filtration of a coal liquid slurry using an alkylmethacrylate copolymer |
| 11/26/1980 | EP0019350A1 Filtration of a coal liquid slurry using an alkylmethacrylate copolymer and an alcohol |
| 11/25/1980 | US4235325 Heater treater waste heat recovery system |
| 11/13/1980 | WO1980002386A1 Filtration of a coal liquid slurry using an alkylmethacrylate copolymer and an alcohol |
| 11/13/1980 | WO1980002385A1 Filtration of a coal liquid slurry using an alkylmethacrylate copolymer |
| 11/13/1980 | WO1980002384A1 Filtration of a coal liquid slurry using polyisobutylene |
| 11/13/1980 | WO1980002383A1 Filtration of a coal liquid slurry using an ethylene vinyl acetate copolymer and an alcohol |
| 11/13/1980 | WO1980002382A1 Filtration of a coal liquid slurry using an ethylene vinyl acetate copolymer |
| 11/13/1980 | WO1980002381A1 Filtration of a coal liquid slurry using polyisobutylene and an alcohol |
| 11/12/1980 | EP0018721A1 Filtration of a coal liquid slurry using polyisobutylene |
| 11/12/1980 | EP0018720A1 Filtration of a coal liquid slurry using an ethylene vinyl acetate copolymer and an alcohol |
| 11/11/1980 | US4233140 Recycling and solvent extraction |
| 10/21/1980 | US4229297 Method of separating oil from oil-containing liquid |
| 10/07/1980 | CA1087107A1 Ultrafiltration or reverse osmosis treatment of emulsified oil metal working coolants |
| 09/30/1980 | US4225415 Adding viscosity lowering fluids |
| 09/23/1980 | US4224135 Cross-flow electrofilter and method |
| 07/10/1980 | WO1980001388A1 Fuel oil desalting process |
| 07/08/1980 | US4211639 Method for removing impurities and residual moisture from petroleum fuels |
| 06/24/1980 | US4209374 Plural parallel stage desalting and dehydration |
| 06/10/1980 | CA1079215A1 Thermal treatment of used petroleum oils |
| 06/03/1980 | US4206034 Felted-cloth filter |
| 05/20/1980 | US4203830 Visbreaking process for demetalation and desulfurization of heavy oil |
| 05/06/1980 | US4201664 Ultrafiltration or reverse osmosis treatment of emulsified oil metal working coolants |
| 05/06/1980 | US4201660 Process for the separation of mixtures of various hydrocarbon compounds |
| 05/06/1980 | US4201658 Separation using deasphalting solvent |
| 04/29/1980 | US4200550 Process and apparatus for desalting crude petroleum |
| 04/22/1980 | US4199433 Solvent dewaxing of lubricating oils, stripping solvent from dewaxed oils, deoiled waxes and slack waxes with inert gas in counterflow |
| 04/22/1980 | CA1076050A1 Residual fuel deriving from petroleum crude by hydrogenation |
| 03/25/1980 | US4194924 Process for reclaiming aircraft fuel tank purging fluids |
| 02/26/1980 | CA1072473A1 Dilution centrifuging of bitumen froth from the hot water process for tar sand |
| 02/19/1980 | US4189351 Oil reclamation device |
| 02/05/1980 | CA1071129A1 Method for improving the sedimentation and filterability of coal-derived liquids |
| 12/25/1979 | USRE30179 Common ion effect to assist LM separation |
| 12/25/1979 | US4180457 Process for desalting and dehydration of crude oil including hot water washing and gas stripping |
| 12/18/1979 | US4179019 Apparatus for reclaiming used lubricating oils |
| 11/20/1979 | CA1066660A1 Filtering process |
| 11/06/1979 | CA1065781A1 Process for treating naphtha |
| 10/23/1979 | USRE30125 Liquid membrane process for the separation of aqueous mixtures |
| 10/23/1979 | US4172026 Heat treatment |
| 10/16/1979 | CA1064421A1 Demetallization of heavy oils |
| 10/09/1979 | CA1063960A1 Binder pitch from petroleum-base stock |
| 10/09/1979 | CA1063959A1 Method of increasing yield of petroleum pitch |
| 08/28/1979 | US4166025 Process for purifying aromatic hydrocarbons |
| 05/22/1979 | US4155844 Separation process |
| 05/08/1979 | US4153537 Cryothermal manipulation of petroleum |
| 05/08/1979 | CA1054068A1 Used lubricating oil regeneration through semi-permeable membrane |
| 04/24/1979 | US4151073 Feeding hydrocarbon liquid containing particulates and gases tangentially to cylindrical separator |
| 04/17/1979 | CA1052706A1 Lubricating oil regeneration through preheating prior to filtration by means of a semi-permeable membrane |
| 01/02/1979 | US4132639 Method for improving the sedimentation and filterability of coal-derived liquids |
| 11/07/1978 | US4124496 High pressure, multistage flashing |
| 10/24/1978 | US4121352 Apparatus for drying and degassing oil |
| 06/13/1978 | US4094748 Method of and device for distilling off secondary substances from oily liquids |
| 05/09/1978 | US4088542 Superheated steam |
| 04/04/1978 | US4082653 Crude oil distillation process |
| 03/07/1978 | US4077881 Separation of insoluble material from coal liquefaction product by gravity settling |
| 02/07/1978 | US4072609 Capacitance system for heavy phase discharge of second stage centrifugal separation circuit |
| 11/01/1977 | US4056462 Separating hydrocarbon mixtures by emulsification |
| 07/05/1977 | US4033859 Thermal treatment of used petroleum oils |
| 05/17/1977 | US4024051 Using an antifoulant in a crude oil heating process |
| 05/17/1977 | US4024050 Phosphorous ester antifoulants in crude oil refining |
| 05/17/1977 | US4024049 Mono and di organophosphite esters as crude oil antifoulants |
| 05/10/1977 | US4022675 Particles from hydrocarbon fractions |
| 03/29/1977 | US4014782 Liquefaction of gases |
| 03/15/1977 | US4012314 Controlling specific gravity of oil, separating solids |
| 11/09/1976 | US3990963 Process for regenerating used lubricating oils |
| 08/10/1976 | US3974072 Filtration method |
| 07/06/1976 | US3968030 Method and an installation for improving the energy balance of installations for processing chemical process streams and especially petroleum refineries |
| 06/08/1976 | US3962098 Gravity settling |
| 05/04/1976 | US3954602 Process for cleaning used oils |
| 04/27/1976 | US3953323 Process for reduction of olefinic unsaturation of pyrolysis naphtha (dripolene) |
| 04/27/1976 | US3953322 Non-catalytic process for treating naphtha containing olefinically unsaturated components |
| 03/30/1976 | US3947258 Vapor stripping and recovery method and apparatus |
| 01/06/1976 | US3930990 Process for separating hydrocarbons |