| |
 |
|
Class Information
Number: 208/403
Name: Mineral oils: processes and products > By treatment of solid mineral, e.g., coal liquefaction, etc. > Chemical modification of solids before hydrogenation
Description: Subject matter including a hydrogenation step and a step, upstream of the hydrogenation, in which a solid feed to the process undergoes a partial chemical reaction, which does not change the essential nature of the feed; e.g., coal may be deoxgenated or desulfurized, but it is not solublized or converted to coke.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626061 |
Method and apparatus for continuous decomposing waste polymeric materials |
Dec. 1, 2009 |
| 6936159 |
Process for recovering hydrocarbons from a carbon containing material |
Aug. 30, 2005 |
| 5783065 |
Method for coal liquefaction |
Jul. 21, 1998 |
| 5454934 |
Coal liquefaction using atomically dispersed metals |
Oct. 3, 1995 |
| 5360537 |
Apparatus and method for retorting oil shale and like materials |
Nov. 1, 1994 |
| 5336395 |
Liquefaction of coal with aqueous carbon monoxide pretreatment |
Aug. 9, 1994 |
| 5277796 |
Pretreating oil shale with organic acid to increase retorting yield and process efficiency |
Jan. 11, 1994 |
| 5266189 |
Integrated low severity alcohol-base coal liquefaction process |
Nov. 30, 1993 |
| 5256278 |
Direct coal liquefaction process |
Oct. 26, 1993 |
| 5248413 |
Process for removing sulfur and producing enhanced quality and environmentally acceptable products for energy production from coal |
Sep. 28, 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 |
| 5120429 |
Co-processing of carbonaceous solids and petroleum oil |
Jun. 9, 1992 |
| 5026475 |
Coal hydroconversion process comprising solvent extraction (OP-3472) |
Jun. 25, 1991 |
| 4839030 |
Coal liquefaction process utilizing coal/CO.sub.2 slurry feedstream |
Jun. 13, 1989 |
| 4778585 |
Two-stage pyrolysis of coal for producing liquid hydrocarbon fuels |
Oct. 18, 1988 |
| 4758331 |
Low-sulfur fuels from coals |
Jul. 19, 1988 |
| H478 |
Selective reduction of sodium in coal by water wash and ion exchange with tailored electrolyte |
Jun. 7, 1988 |
| 4737261 |
Process for the production of premium grade needle coke from a hydrotreated SRC material |
Apr. 12, 1988 |
| 4728418 |
Process for the low-temperature depolymerization of coal and its conversion to a hydrocarbon oil |
Mar. 1, 1988 |
| 4702820 |
Pretreatment by alkaline wetting and holding at temperature of natural materials having an argillaceous gangue containing combustible elements |
Oct. 27, 1987 |
| 4617105 |
Coal liquefaction process using pretreatment with a binary solvent mixture |
Oct. 14, 1986 |
| H69 |
Solvent treatment of coal for improved liquefaction |
May. 6, 1986 |
| 4583990 |
Method for the beneficiation of low rank coal |
Apr. 22, 1986 |
| 4501651 |
Process for treating oil shale with a mild oxidant |
Feb. 26, 1985 |
| 4493763 |
Pretreatment of oil-shale for enhanced arsenic removal |
Jan. 15, 1985 |
| 4490238 |
Process for beneficiating oil-shale |
Dec. 25, 1984 |
| 4450066 |
Hydrothermal pretreatment to prevent scale during liquefaction of certain solid carbonaceous materials |
May. 22, 1984 |
| 4449586 |
Process for the recovery of hydrocarbons from oil shale |
May. 22, 1984 |
| 4439305 |
Process for pyrolysis of carbonous materials |
Mar. 27, 1984 |
| 4401550 |
Liquefaction of calcium-containing coals |
Aug. 30, 1983 |
| 4401549 |
Liquefaction of calcium-containing coals |
Aug. 30, 1983 |
| 4377392 |
Coal composition |
Mar. 22, 1983 |
| 4372750 |
O-Alkylated/O-acylated coal and coal bottoms |
Feb. 8, 1983 |
| 4324640 |
Pyrolysis process |
Apr. 13, 1982 |
| 4324644 |
Pyrolysis process for stabilizing volatile hydrocarbons utilizing a beneficially reactive gas |
Apr. 13, 1982 |
| 4324643 |
Pyrolysis process for producing condensed stabilized hydrocarbons |
Apr. 13, 1982 |
| 4324642 |
Pyrolysis process for producing condensed stabilized hydrocarbons utilizing a beneficially reactive gas |
Apr. 13, 1982 |
| 4324641 |
Pyrolysis process utilizing a beneficially reactive gas |
Apr. 13, 1982 |
| 4324639 |
Pyrolysis process with feed pretreatment |
Apr. 13, 1982 |
| 4324638 |
Pyrolysis process for stabilizing volatile hydrocarbons |
Apr. 13, 1982 |
| 4324637 |
Pyrolysis process with feed pretreatment utilizing a beneficially reactive gas |
Apr. 13, 1982 |
| 4319981 |
Process for preparing a liquid fuel composition |
Mar. 16, 1982 |
| 4306959 |
Use of chelating agents in the conversion of coal to low mineral content fuel |
Dec. 22, 1981 |
| 4306960 |
Coal liquefaction and oil upgrading process to obtain maximum yield of distillate |
Dec. 22, 1981 |
| 4304655 |
Liquefaction process |
Dec. 8, 1981 |
| 4300995 |
Oxygen-alkylation of carbonous material and products thereof |
Nov. 17, 1981 |
| 4273643 |
Process for production of synthetic crude oil, alcohols, and chars during low temperature carbonization of coals |
Jun. 16, 1981 |
| 4263123 |
Anionic grafts of monomers onto coal substrates |
Apr. 21, 1981 |
| 4260472 |
Process of producing hydrocarbons from coal |
Apr. 7, 1981 |
|
|
|
