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Class Information
Number: 208/951
Name: Mineral oils: processes and products > Solid feed treatment with a gas other than air, hydrogen or steam
Description: Collection of patents in which a solid carbonaceous material feedstock of the type of ... is treated with a gas or gaseous mixture containing other than air hydrogen or steam, e.g., H2S, CO, CH4, etc., alone or admixed with each other or another gas.

Patents under this class:
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Patent Number Title Of Patent Date Issued
5122259 Separation of oil and precious metals from mined oil-bearing rock material Jun. 16, 1992
4778585 Two-stage pyrolysis of coal for producing liquid hydrocarbon fuels Oct. 18, 1988
4687570 Direct use of methane in coal liquefaction Aug. 18, 1987
4610776 Coal liquefaction process Sep. 9, 1986
4606812 Hydrotreating of carbonaceous materials Aug. 19, 1986
4605487 Use of methane, methane and hydrogen, or natural gas for pyrolysis gas Aug. 12, 1986
4597775 Coking and gasification process Jul. 1, 1986
4589488 Method for recovery of mineral resources May. 20, 1986
4585543 Method for recovering hydrocarbons from solids Apr. 29, 1986
4568446 Process for treating modified oil shale to recover shale oil Feb. 4, 1986
4533460 Oil shale extraction process Aug. 6, 1985
4505808 Method of extracting hydrocarbons from oil-containing rock or sand through hydrogenating low temperature carbonization Mar. 19, 1985
4493763 Pretreatment of oil-shale for enhanced arsenic removal Jan. 15, 1985
4469584 Process for pyrolyzing oil-shale Sep. 4, 1984
4448665 Use of ammonia to reduce the viscosity of bottoms streams produced in hydroconversion processes May. 15, 1984
4448668 Process for retorting oil shale with maximum heat recovery May. 15, 1984
4448666 Retorting process for hydrocarbonaceous solids May. 15, 1984
4438816 Process for recovery of hydrocarbons from oil shale Mar. 27, 1984
4428821 Oil shale extraction process Jan. 31, 1984
4426313 Preparation of surfactants by sulfonating derivatives of depolymerized coal Jan. 17, 1984
4424169 Preparation of surfactants Jan. 3, 1984
4419214 Process for the recovery of shale oil, heavy oil, kerogen or tar from their natural sources Dec. 6, 1983
4401550 Liquefaction of calcium-containing coals Aug. 30, 1983
4401549 Liquefaction of calcium-containing coals Aug. 30, 1983
4400262 Fluid coking with the addition of polymetaphosphoric acid catalysts Aug. 23, 1983
4396786 Method for producing fuel oil from cellulosic materials Aug. 2, 1983
4379744 Coal liquefaction process Apr. 12, 1983
4369106 Coal liquefaction process Jan. 18, 1983
4366044 Process for conversion of coal to hydrocarbon and other values Dec. 28, 1982
4359451 Desulfurization of carbonaceous materials Nov. 16, 1982
4357229 Catalysts and hydrocarbon treating processes utilizing the same Nov. 2, 1982
4353418 In situ retorting of oil shale Oct. 12, 1982
4351716 Liquefaction process Sep. 28, 1982
4347118 Solvent extraction process for tar sands Aug. 31, 1982
4344839 Process for separating oil from a naturally occurring mixture Aug. 17, 1982
4337142 Continuous process for conversion of coal Jun. 29, 1982
4332667 Liquefaction process for solid carbonaceous materials containing alkaline earth metal humates Jun. 1, 1982
4328089 Combined dewatering and liquid phase hydrogenolysis of raw peat using carbon monoxide May. 4, 1982
4326945 Coal liquefaction process Apr. 27, 1982
4325802 Method of liquefaction of carbonaceous materials Apr. 20, 1982
4324643 Pyrolysis process for producing condensed stabilized hydrocarbons Apr. 13, 1982
4324644 Pyrolysis process for stabilizing volatile hydrocarbons utilizing a beneficially reactive gas Apr. 13, 1982
4324637 Pyrolysis process with feed pretreatment utilizing a beneficially reactive gas Apr. 13, 1982
4324638 Pyrolysis process for stabilizing volatile hydrocarbons Apr. 13, 1982
4324639 Pyrolysis process with feed pretreatment Apr. 13, 1982
4324640 Pyrolysis process Apr. 13, 1982
4324641 Pyrolysis process utilizing a beneficially reactive gas Apr. 13, 1982
4324642 Pyrolysis process for producing condensed stabilized hydrocarbons utilizing a beneficially reactive gas Apr. 13, 1982
4322283 Coal conversion in the presence of added hydrogen sulfide Mar. 30, 1982
4319982 Method of processing oil-shale or tar sand Mar. 16, 1982

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