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Class Information
Number: 208/409
Name: Mineral oils: processes and products > By treatment of solid mineral, e.g., coal liquefaction, etc. > Specified agitation or circulation in gas contact zone > Vertical gas upflow, e.g., fluidization, etc.
Description: Subject matter in which the gas moves vertically upward in the contact zone.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7229547 |
Retort heating systems and methods of use |
Jun. 12, 2007 |
| 6139722 |
Process and apparatus for converting oil shale or tar sands to oil |
Oct. 31, 2000 |
| 5547549 |
Vibrating bed coal pyrolysis system |
Aug. 20, 1996 |
| 5496465 |
Vibrating bed coal pyrolysis system |
Mar. 5, 1996 |
| 5156734 |
Enhanced efficiency hydrocarbon eduction process and apparatus |
Oct. 20, 1992 |
| 5092984 |
Pyrolysis of coal |
Mar. 3, 1992 |
| 5045180 |
Catalytic two-stage coal liquefaction process having improved nitrogen removal |
Sep. 3, 1991 |
| 5041210 |
Oil shale retorting with steam and produced gas |
Aug. 20, 1991 |
| 5008005 |
Integrated coke, asphalt and jet fuel production process and apparatus |
Apr. 16, 1991 |
| 4997548 |
Coal extraction |
Mar. 5, 1991 |
| 4944867 |
Process to secure oil, gas, and by-products from pyrobetuminous shale and other matter impregnated with hydrocarbons |
Jul. 31, 1990 |
| 4931171 |
Pyrolysis of carbonaceous materials |
Jun. 5, 1990 |
| 4880528 |
Method and apparatus for hydrocarbon recovery from tar sands |
Nov. 14, 1989 |
| 4853111 |
Two-stage co-processing of coal/oil feedstocks |
Aug. 1, 1989 |
| 4846964 |
Fluidized-bed bioreactor process for the microbial solubiliztion of coal |
Jul. 11, 1989 |
| 4842719 |
Catalytic two-stage coal hydrogenation and hydroconversion process |
Jun. 27, 1989 |
| 4707248 |
Process for the retorting of hydrocarbon-containing solids |
Nov. 17, 1987 |
| 4605487 |
Use of methane, methane and hydrogen, or natural gas for pyrolysis gas |
Aug. 12, 1986 |
| 4597775 |
Coking and gasification process |
Jul. 1, 1986 |
| 4596650 |
Liquefaction of sub-bituminous coal |
Jun. 24, 1986 |
| 4582590 |
Solar heated oil shale pyrolysis process |
Apr. 15, 1986 |
| 4578176 |
Fuel production by free fall countercurrent flow |
Mar. 25, 1986 |
| 4564437 |
Process for retorting oil shale with fluidized retorting of shale fines |
Jan. 14, 1986 |
| 4563264 |
Method of dry distillation of volatile substances from mineral matter containing same |
Jan. 7, 1986 |
| 4560547 |
Production of hydrogen from oil shale |
Dec. 24, 1985 |
| 4552725 |
Apparatus for co-processing of oil and coal |
Nov. 12, 1985 |
| 4548702 |
Shale oil stabilization with a hydroprocessor |
Oct. 22, 1985 |
| 4545892 |
Treatment of primary tailings and middlings from the hot water extraction process for recovering bitumen from tar sand |
Oct. 8, 1985 |
| 4536275 |
Integrated two-stage coal liquefaction process |
Aug. 20, 1985 |
| 4533463 |
Continuous coking of residual oil and production of gaseous fuel and smokeless solid fuels from coal |
Aug. 6, 1985 |
| 4519894 |
Treatment of carbonaceous shales or sands to recover oil and pure carbon as products |
May. 28, 1985 |
| 4515679 |
Process for retorting oil shale with fluidized retorting of shale fines |
May. 7, 1985 |
| 4492623 |
Process for the hydrogenation of coal using a split feed |
Jan. 8, 1985 |
| 4490237 |
Process for recovering heat from the combustion of residual carbon in oil depleted shale |
Dec. 25, 1984 |
| 4490213 |
Coal conversion processes |
Dec. 25, 1984 |
| 4481099 |
Solvent extraction method |
Nov. 6, 1984 |
| 4481080 |
Staged fluidized bed |
Nov. 6, 1984 |
| 4473459 |
System for transferring a slurry of hydrocarbon-containing solids to and from a wet oxidation reactor |
Sep. 25, 1984 |
| 4464247 |
Horizontal fluid bed retorting process |
Aug. 7, 1984 |
| 4461673 |
Process for cooling, depressurizing, and moisturizing retorted oil shale |
Jul. 24, 1984 |
| 4459201 |
Oil shale retorting process utilizing indirect heat transfer |
Jul. 10, 1984 |
| 4448668 |
Process for retorting oil shale with maximum heat recovery |
May. 15, 1984 |
| 4446001 |
Recovery of retorted shale from an oil shale retorting process |
May. 1, 1984 |
| 4441986 |
Shale retorting with inorganic removal prior to combustion |
Apr. 10, 1984 |
| 4439307 |
Heating process gas for indirect shale oil retorting through the combustion of residual carbon in oil depleted shale |
Mar. 27, 1984 |
| 4431509 |
Hydrocarbon production by free fall countercurrent flow hydroconversion |
Feb. 14, 1984 |
| 4430195 |
Fluid bed retorting process with lateral flow |
Feb. 7, 1984 |
| 4424111 |
Regeneration of ZnC12 |
Jan. 3, 1984 |
| 4424109 |
Catalyst for coal liquefaction process |
Jan. 3, 1984 |
| 4415442 |
Process for the separation of entrained organic fluids from gaseous streams in a coal deashing system |
Nov. 15, 1983 |
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