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Class Information
Number: 208/408
Name: Mineral oils: processes and products > By treatment of solid mineral, e.g., coal liquefaction, etc. > Specified agitation or circulation in gas contact zone > Gas includes hydrogen
Description: Subject matter wherein a gas containing elemental hydrogen, added to the process, is present in the gas contact zone.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7076346 |
Automated continuous haulage system |
Jul. 11, 2006 |
| 6789680 |
Screen assembly for vibratory separator |
Sep. 14, 2004 |
| 6709573 |
Process for the recovery of hydrocarbon fractions from hydrocarbonaceous solids |
Mar. 23, 2004 |
| 6607569 |
Method of estimating reaction product in coal liquefying reaction |
Aug. 19, 2003 |
| 6054043 |
Process for the hydrogenation of hydro-carbonaceous materials (Carb-Mat) for the production of vaporizable products |
Apr. 25, 2000 |
| 5505839 |
Method of coal liquefaction |
Apr. 9, 1996 |
| 5431889 |
High temperature and high pressure reaction process and apparatus |
Jul. 11, 1995 |
| 5232679 |
Process for production of value-added coproducts from coal and other carbonaceous materials |
Aug. 3, 1993 |
| 5100536 |
Method of processing substances |
Mar. 31, 1992 |
| 5015366 |
Process and apparatus for coal hydrogenation |
May. 14, 1991 |
| 4997548 |
Coal extraction |
Mar. 5, 1991 |
| 4944866 |
Process for the hydrogenation of coal |
Jul. 31, 1990 |
| 4872971 |
Progressive flow cracking of coal/oil mixtures with high metals content catalyst |
Oct. 10, 1989 |
| 4846963 |
Ionic liquefaction process |
Jul. 11, 1989 |
| 4842719 |
Catalytic two-stage coal hydrogenation and hydroconversion process |
Jun. 27, 1989 |
| 4758331 |
Low-sulfur fuels from coals |
Jul. 19, 1988 |
| 4735706 |
Process and apparatus for coal hydrogenation |
Apr. 5, 1988 |
| 4725350 |
Process for extracting oil and hydrocarbons from crushed solids using hydrogen rich syn gas |
Feb. 16, 1988 |
| 4708788 |
Upgrading carbonaceous materials |
Nov. 24, 1987 |
| 4696735 |
Method and apparatus for multiphase coal hydrogenation reactors with exothermal heat of reaction having gas cooling in sump-phase reactors |
Sep. 29, 1987 |
| 4605487 |
Use of methane, methane and hydrogen, or natural gas for pyrolysis gas |
Aug. 12, 1986 |
| 4599161 |
Retorting process with contaminant removal |
Jul. 8, 1986 |
| 4578176 |
Fuel production by free fall countercurrent flow |
Mar. 25, 1986 |
| 4578175 |
Combined process for coal pyrolysis and char gasification |
Mar. 25, 1986 |
| 4576708 |
Beneficiation of shale kerogen and its conversion into shale oil |
Mar. 18, 1986 |
| 4558651 |
Fired heater for coal liquefaction process |
Dec. 17, 1985 |
| 4552642 |
Method for converting coal to upgraded liquid product |
Nov. 12, 1985 |
| 4549954 |
Power recovery system for coal liquefaction process |
Oct. 29, 1985 |
| 4544476 |
Coal liquefaction and hydrogenation |
Oct. 1, 1985 |
| 4533460 |
Oil shale extraction process |
Aug. 6, 1985 |
| 4510037 |
Hydrogenation process for solid carbonaceous feed materials using thermal countercurrent flow reaction zone |
Apr. 9, 1985 |
| 4495055 |
Coal catalytic hydrogenation process using direct coal slurry feed to reactor with controlled mixing conditions |
Jan. 22, 1985 |
| 4472264 |
Process for converting solid carbonaceous materials to methane |
Sep. 18, 1984 |
| 4457826 |
Prevention of deleterious deposits in a coal liquefaction system |
Jul. 3, 1984 |
| 4455215 |
Process for the geoconversion of coal into oil |
Jun. 19, 1984 |
| 4437973 |
Coal hydrogenation process with direct coal feed and improved residuum conversion |
Mar. 20, 1984 |
| 4435280 |
Hydrocracking of heavy hydrocarbon oils with high pitch conversion |
Mar. 6, 1984 |
| 4435269 |
Conversion of lignite to higher quality fuels |
Mar. 6, 1984 |
| 4431509 |
Hydrocarbon production by free fall countercurrent flow hydroconversion |
Feb. 14, 1984 |
| 4424108 |
Process for heating coal-oil slurries |
Jan. 3, 1984 |
| 4410414 |
Method for hydroconversion of solid carbonaceous materials |
Oct. 18, 1983 |
| 4404084 |
Coal hydrogenation and deashing in ebullated bed catalytic reactor |
Sep. 13, 1983 |
| 4404086 |
Radial flow retorting process with trays and downcomers |
Sep. 13, 1983 |
| 4400261 |
Process for coal liquefaction by separation of entrained gases from slurry exiting staged dissolvers |
Aug. 23, 1983 |
| 4400262 |
Fluid coking with the addition of polymetaphosphoric acid catalysts |
Aug. 23, 1983 |
| 4400263 |
H-Coal process and plant design |
Aug. 23, 1983 |
| 4359451 |
Desulfurization of carbonaceous materials |
Nov. 16, 1982 |
| 4354920 |
Coal liquefaction process |
Oct. 19, 1982 |
| 4344836 |
Method for converting coal to hydrocarbons by hydrogenation |
Aug. 17, 1982 |
| 4336125 |
Production of synthetic hydrocarbon fuels from peat |
Jun. 22, 1982 |
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