| 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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| 07/23/1991 | CA1286612C Process for the separation of solvents from hydrocarbons dissolved in said solvents |
| 07/19/1991 | CA2025028A1 Separation of furfural/middle distillate streams |
| 07/09/1991 | US5030355 Polyurethane and/or polyurea alloys; separating aromatics |
| 06/26/1991 | EP0434342A1 Selective separation of multi-ring aromatic hydrocarbons from distillates by perstraction |
| 06/25/1991 | CA1285210C Low pressure process for c + liquids recovery from process product gas |
| 06/20/1991 | CA2031163A1 Selective separation of multi-ring aromatic hydrocarbons from distillates by perstraction |
| 06/19/1991 | EP0432858A1 Process for removing hydrogen sulfide from crude petroleum |
| 06/05/1991 | EP0291504A4 Method and apparatus for treating asphaltene bearing fuels |
| 05/28/1991 | US5019666 Non-porous polycarbonate membranes for separation of aromatics from saturates |
| 05/21/1991 | US5017294 Apparatus for the separation of two immiscible liquids and use of said apparatus in the desalting of a hydrocarbon feedstock |
| 05/15/1991 | EP0427452A2 Process for separating a charge containing dewaxing solvent and dewaxed oil |
| 05/15/1991 | EP0427338A1 Process for the separation of solvents from hydrocarbons dissolved in said solvents |
| 05/14/1991 | US5015268 Polymeric membrane and process for separating aliphatically unsaturated hydrocarbons |
| 05/11/1991 | CA2029567A1 Process for the separation of solvents from hydrocarbons dissolved in said solvents |
| 05/09/1991 | CA2029030A1 Process for treating a charge containing dewaxing solvent and dewaxed oil |
| 04/30/1991 | US5012036 Polyarylate membranes or aromatics/saturates separation (C-2415) |
| 04/30/1991 | US5012035 Polyphthalatecarbonate membranes for aromatics/saturates separation |
| 04/30/1991 | US5011594 Process for the continuous extraction of mixtures of organic substances with supercritical solvents |
| 04/24/1991 | EP0424040A2 Membranes obtained from crosslinked copolymers of aliphatic polyesters diols and dianhydrides. |
| 04/24/1991 | EP0424039A1 Separation of mixtures of aromatics and saturates |
| 04/17/1991 | EP0422304A1 Thermally crosslinked nitrile rubber membranes, their preparation and use for aromatics separation |
| 04/17/1991 | CA2026895A1 Polyester membranes for aromatics/saturates separation |
| 04/17/1991 | CA2026894A1 Crosslinked copolymers of aliphatic polyester diols and dianhydrides |
| 04/10/1991 | EP0421676A1 Interfacially polymerized membranes, and reverse osmosis separation of organic solvent solutions using them |
| 04/06/1991 | CA2026054A1 Interfacially polymerized membranes for the reverse osmosis separation of organic solvent solutions |
| 03/27/1991 | EP0419265A1 A process for converting and upgrading organic resource materials in aqueous environments |
| 03/26/1991 | CA1281995C Process for the recovery of hydrogen/heavy hydrocarbons from hydrogen-lean feed gases |
| 03/05/1991 | US4997906 Crosslinked copolymers of aliphatic polyester diols and dianhydrides |
| 03/05/1991 | US4997548 Solvent extraction |
| 02/05/1991 | US4990237 Demetallization by heating, condensing and centrifuging to separate water and oil products for reuse |
| 01/15/1991 | US4985138 Process for treating a charge containing dewaxing solvent and dewaxed oil |
| 01/01/1991 | US4982051 Separation of furfural/middle distillate streams |
| 01/01/1991 | US4981577 Process for the production of natural gas condensate having a reduced amount of mercury from a mercury-containing natural gas wellstream |
| 12/27/1990 | EP0404416A1 Transition metal exchanged ionomer membrane for hydrocarbon separation |
| 12/21/1990 | CA2018418A1 Transition metal-exchanged ionomer membrane for hydrocarbon separation |
| 12/18/1990 | US4978454 Separating a mixture of two dispersed phases into separate streams; ultrafiltration, permeate-retentate recycle |
| 12/11/1990 | US4976868 Polyester membranes for aromatics/saturates separation |
| 11/27/1990 | US4973606 Membranes of organic polymers which contain crystalline carrier compounds, and their preparation |
| 11/22/1990 | EP0398093A2 Composite membranes, process for their production and their use |
| 11/22/1990 | EP0398022A1 Method for the separation of oil in water emulsions |
| 11/18/1990 | CA2016960A1 Composite membranes, processes for their preparation and their use |
| 10/21/1990 | WO1990012633A1 Method of separating oil-in-water emulsions |
| 10/21/1990 | CA2053227A1 Process for the separation of oil-in-water emulsions |
| 10/16/1990 | US4963264 Process for selective dialysis using polymeric affinity adsorbents and size selective membranes |
| 10/10/1990 | CN1009923B Process for removing paraffins from their mixture with paraffinsulphonic acid |
| 10/09/1990 | US4962276 Process for removing mercury from water or hydrocarbon condensate |
| 10/09/1990 | US4962271 Permselective membranes |
| 09/26/1990 | EP0389346A1 Device for the separation of two non-miscible liquids and its application for the desalting of a hydrocarbon batch |
| 09/05/1990 | EP0385006A1 Removing haze from dewaxed hydrocarbon oil mixture boiling in the lubricating oil range |
| 09/05/1990 | CN1045122A Method of cleaning and reclaiming used oils |
| 09/04/1990 | US4954240 Upgrading; microfiltration of catalyst particles; slurrying |
| 08/07/1990 | US4946594 Crosslinked copolymers of aliphatic polyester diols and dianhydrides |
| 08/07/1990 | CA1272465A1 Electrostatic mixer/separator |
| 07/18/1990 | EP0377606A1 Process for purifying and regenerating used oils. |
| 06/27/1990 | CN1043309A Method for isolation and purification of coal tar-derived anthracene |
| 06/21/1990 | DE3842568A1 Process for the removal of sulphur from crude oil |
| 06/19/1990 | CA2004498A1 Combination coking and hydroconversion process |
| 05/29/1990 | US4929358 Polyurethane-imide membranes and their use for the separation of aromatics from non-aromatics |
| 05/15/1990 | US4925459 Using molecular sieve zeolite |
| 05/09/1990 | EP0366844A1 Selective separation of aromatic hydrocarbons from a mixture of aromatic and saturated hydrocarbons using polyethylene glycol impregnated hydrophilic membranes |
| 05/01/1990 | US4921611 Polyurethane copolymers |
| 04/25/1990 | CN1041612A Apparatus and method for reclaiming waste oil |
| 04/04/1990 | CN1041002A Fliod fluid decontamination system |
| 04/03/1990 | US4914064 Highly aromatic polyurea/urethane membranes and their use for the separation of aromatics from non-aromatics |
| 03/28/1990 | EP0360500A2 Apparatus and method for reclaiming waste oil |
| 03/21/1990 | EP0359359A1 Fluid decontamination system |
| 02/27/1990 | US4904347 Method and apparatus for distilling liquid hydrocarbon products |
| 01/23/1990 | US4895641 Emulsifying surfactant or alkali, low shear, demulsification |
| 12/12/1989 | CA1263845A1 Method of removing substances from fossil derived, hydrocarbon liquids |
| 12/05/1989 | US4885096 Using rubber copolymer of conjugated dienes and nitriles |
| 11/21/1989 | US4882036 Combination coking and hydroconversion process |
| 11/07/1989 | US4879044 Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non aromatics |
| 10/17/1989 | US4874505 Separation sludge by oil concentration; delay coking of high concentration sludge; quenching with low concentration sludge |
| 10/11/1989 | EP0336535A1 Gas separation by composite solvent-swollen membranes |
| 10/04/1989 | CN1036030A Fluid decontamination system |
| 09/26/1989 | CA1260423A1 Method for desalting crude oil |
| 09/20/1989 | EP0332768A2 Fluid decontamination process |
| 09/19/1989 | CA1259569A1 Method for dewaxing aid recovery by means of ultrafiltration using a selective membrane and the spiral wound element for such recovery |
| 08/30/1989 | EP0330314A1 Recycle of oily refinery wastes |
| 08/29/1989 | US4861628 Thin film composite membrane prepared by suspension deposition |
| 08/23/1989 | EP0329510A1 Process for deasphaltizing a heavy hydrocarbon feedstock, and applications of this process |
| 08/08/1989 | US4855044 Purification of oils containing solid matters in suspension |
| 07/25/1989 | US4850498 Mixing water with halogenated hydrocarbon or hydraulic fluid and conducting flow tangentially to surface of microporous hollow fiber membranes, and separating the decontaminated permeate fluid |
| 07/19/1989 | EP0324675A1 Process for separating the components of a gaseous mixture using a composite membrane |
| 07/11/1989 | US4846977 Method and device for separating polar from non-polar liquids using membranes |
| 07/11/1989 | CA1257214A1 Process for solid separation from hydroprocessing liquid product |
| 07/04/1989 | US4844804 Fluid decontamination system |
| 07/04/1989 | US4844793 Fuel heating type fuel filter device |
| 06/21/1989 | EP0320813A1 Process for the continuous extraction of high or non-boiling but melting organic mixtures |
| 06/20/1989 | CA1256043A1 Process for the removal of solids from an oil |
| 06/13/1989 | US4839023 Once-through coking with hydrotreating and fluid catalytic cracking |
| 06/06/1989 | US4837054 Thin film composite membrane prepared by deposition from a solution |
| 05/30/1989 | US4834864 Once-through coking with solids recycle |
| 05/09/1989 | US4828773 Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non-aromatics |
| 04/25/1989 | US4824443 Highly polar solvent |
| 04/25/1989 | CA1253112A1 Method for desalting crude oil |
| 04/19/1989 | EP0312379A2 Highly aromatic anisotropic polyurea/urethane membranes and their use for the separation of aromatics from non-aromatics |
| 04/19/1989 | EP0312378A2 Method of preparing a thin film composite membrane by deposition from a solution, and use of the membrane |
| 04/19/1989 | EP0312377A2 Method of preparing thin film composite membranes by suspension deposition, and use of such membranes |
| 04/19/1989 | EP0312376A2 Polyurea membrane and its use for aromatics/non-aromatics separations |