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Class Information
Number: 208/431
Name: Mineral oils: processes and products > By treatment of solid mineral, e.g., coal liquefaction, etc. > Including contact with extraneous additive other than hydrogen, e.g., solvent, etc. > Specified hydrogen-donor solvent
Description: Subject matter including contact with a solvent compound or mixture of compounds which can be oxidized by contact with the hydrogenatable feed or intermediate.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7594990 |
Hydrogen donor solvent production and use in resid hydrocracking processes |
Sep. 29, 2009 |
| 7285694 |
Thermobaric molecular fractionation |
Oct. 23, 2007 |
| 7067053 |
Additives for improving thermal conversion of heavy crude oil |
Jun. 27, 2006 |
| 5496464 |
Hydrotreating of heavy hydrocarbon oils in supercritical fluids |
Mar. 5, 1996 |
| 5256278 |
Direct coal liquefaction process |
Oct. 26, 1993 |
| 5240592 |
Method for refining coal utilizing short residence time hydrocracking with selective condensation to produce a slate of value-added co-products |
Aug. 31, 1993 |
| 5200063 |
Coal hydroconversion process comprising solvent enhanced pretreatment with carbon monoxide |
Apr. 6, 1993 |
| 5198103 |
Method for increasing liquid yields from short residence time hydropyrolysis processes |
Mar. 30, 1993 |
| 5132007 |
Co-generation system for co-producing clean, coal-based fuels and electricity |
Jul. 21, 1992 |
| 5120430 |
Coal solubilization |
Jun. 9, 1992 |
| 5110452 |
Method of refining coal by catalyzed short residence time hydrodisproportionation to form a novel coal-derived fuel system |
May. 5, 1992 |
| 5021148 |
Method of refining coal by short residence time partial liquefaction to produce petroleum substitutes and chemical feedstocks |
Jun. 4, 1991 |
| 4971683 |
Method of refining coal by short residence time hydrodisproportionation to co-produce coal-based petroleum substitutes and methanol |
Nov. 20, 1990 |
| 4938782 |
Method of refining coal by short residence time hydrodisproportionation to form a novel coal derived fuel system |
Jul. 3, 1990 |
| 4846963 |
Ionic liquefaction process |
Jul. 11, 1989 |
| 4842615 |
Utilization of low rank and waste coals in transportable fluidic fuel systems |
Jun. 27, 1989 |
| 4842719 |
Catalytic two-stage coal hydrogenation and hydroconversion process |
Jun. 27, 1989 |
| 4832831 |
Method of refining coal by hydrodisproportionation |
May. 23, 1989 |
| 4772379 |
Extraction and liquefaction of fossil fuels using gamma irradiation and solvents |
Sep. 20, 1988 |
| 4703798 |
In situ method for recovering hydrocarbon from subterranean oil shale deposits |
Nov. 3, 1987 |
| 4692238 |
Solvent extraction of organic oils and solvent recovery |
Sep. 8, 1987 |
| 4692239 |
Method of recovering hydrocarbon from oil shale |
Sep. 8, 1987 |
| 4687570 |
Direct use of methane in coal liquefaction |
Aug. 18, 1987 |
| 4663028 |
Process of preparing a donor solvent for coal liquefaction |
May. 5, 1987 |
| 4610776 |
Coal liquefaction process |
Sep. 9, 1986 |
| 4610777 |
Coal liquefaction with Mn nodules |
Sep. 9, 1986 |
| 4594140 |
Integrated coal liquefaction, gasification and electricity production process |
Jun. 10, 1986 |
| 4592826 |
Use of ethers in thermal cracking |
Jun. 3, 1986 |
| H69 |
Solvent treatment of coal for improved liquefaction |
May. 6, 1986 |
| RE32120 |
Hydrotreating supercritical solvent extracts in the presence of alkane extractants |
Apr. 22, 1986 |
| 4568446 |
Process for treating modified oil shale to recover shale oil |
Feb. 4, 1986 |
| 4551224 |
Coal liquefaction process |
Nov. 5, 1985 |
| 4545890 |
Coal liquefaction and hydrogenation |
Oct. 8, 1985 |
| 4541916 |
Coal liquefaction process using low grade crude oil |
Sep. 17, 1985 |
| 4541913 |
Process for hydrocracking supercritical gas extracts of carbonaceous material |
Sep. 17, 1985 |
| 4537675 |
Upgraded solvents in coal liquefaction processes |
Aug. 27, 1985 |
| 4536278 |
Shale oil stabilization with a hydrogen donor quench |
Aug. 20, 1985 |
| 4536277 |
Shale oil stabilization with a hydrogen donor quench and a hydrogen transfer catalyst |
Aug. 20, 1985 |
| 4518480 |
Process for the efficient utilization of solvent modified oil shales |
May. 21, 1985 |
| 4502940 |
Method for extracting caking coals |
Mar. 5, 1985 |
| 4495089 |
Continuous process for the production of solvents for coal liquefaction |
Jan. 22, 1985 |
| 4490213 |
Coal conversion processes |
Dec. 25, 1984 |
| 4485008 |
Liquefaction process |
Nov. 27, 1984 |
| 4476009 |
Process for improving the hydrogen donor properties of a coal liquefaction solvent |
Oct. 9, 1984 |
| 4450066 |
Hydrothermal pretreatment to prevent scale during liquefaction of certain solid carbonaceous materials |
May. 22, 1984 |
| 4439304 |
Process for beneficiating high sulfur, high fluidity coal |
Mar. 27, 1984 |
| 4435270 |
Re-refining lubricating oil in a bed of oil shale |
Mar. 6, 1984 |
| 4431510 |
Process for producing hydrogen-enriched hydrocarbonaceous products from coal |
Feb. 14, 1984 |
| 4428818 |
Liquefaction of coal |
Jan. 31, 1984 |
| 4411766 |
Iron catalyzed coal liquefaction process |
Oct. 25, 1983 |
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