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Class Information
Number: 201/17
Name: Distillation: processes, thermolytic > And refining char, e.g., desulfurizing coke
Description: Processes combined with the step of removing impurities from char.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8445547 Means of processing fuel grade petroleum coke for use in internal combustion engines May. 21, 2013
8404909 Method for capturing carbon dioxide from biomass pyrolysis process Mar. 26, 2013
8394240 Process for treating bituminous coal by removing volatile components Mar. 12, 2013
8366882 Process for treating agglomerating coal by removing volatile components Feb. 5, 2013
8221510 Method and apparatus for refining coal Jul. 17, 2012
7731821 Reduction of sulfur-containing gases during conversion of coal into metallurgical coke Jun. 8, 2010
7645362 Method for pretreating and improving coking coal quality for blast furnace coke Jan. 12, 2010
7497929 Pyrolytic conversion of scrap tires to carbon products Mar. 3, 2009
7347052 Methods and systems for processing uncalcined coke Mar. 25, 2008
5827403 Method of designing and manufacturing a delayed coker drum Oct. 27, 1998
5728196 Process for waste thermolysis Mar. 17, 1998
5635147 Process of treating the gasification residue formed by the gasification of solid fuels in a fluidized bed Jun. 3, 1997
5478442 Treatment of petroleum cokes with a puffing inhibitor in a rotary calciner Dec. 26, 1995
5464876 Process for the recovery of valuable materials during the work-up of polyvinyl chloride Nov. 7, 1995
5393311 Method and apparatus for desulfurizing coal Feb. 28, 1995
5350431 Process for chemical desulfurization of coal Sep. 27, 1994
5302254 Process and plant for the thermolysis of industrial and/or urban waste Apr. 12, 1994
5262577 Method to convert refuse derived fuel into a combustible gas Nov. 16, 1993
5085764 Process for upgrading coal Feb. 4, 1992
5071515 Method for improving the density and crush resistance of coke Dec. 10, 1991
5059307 Process for upgrading coal Oct. 22, 1991
5007987 Method for producing needle coke Apr. 16, 1991
4983187 Method for preparing a high-concentration solids suspension in water Jan. 8, 1991
4946658 Addition of pyritic materials to feed mix for desulfurization of phosphogypsum Aug. 7, 1990
4894122 Continuous process for the desulphurization of carbonaceous residuals from distillation of petroleum using a plurality of fluidized beds Jan. 16, 1990
4888029 Desulfurization of carbonaceous materials Dec. 19, 1989
4886522 Process, for the desulfurization of coal Dec. 12, 1989
4875979 Treatment of petroleum cokes to inhibit coke puffing Oct. 24, 1989
4832701 Process for the regeneration of an additive used to control emissions during the combustion of high sulfur fuel May. 23, 1989
4804390 Process for removing mineral impurities from coals and oil shales Feb. 14, 1989
4764318 Process for the continuous coking of pitches and utilization of the coke obtained thereby Aug. 16, 1988
4752359 Method of producing active form coke Jun. 21, 1988
4743271 Process for producing a clean hydrocarbon fuel May. 10, 1988
4741741 Chemical beneficiation of coal May. 3, 1988
4738753 Method of producing carbonaceous bodies Apr. 19, 1988
4725337 Method for drying low rank coals Feb. 16, 1988
4718984 Apparatus for calcining coke Jan. 12, 1988
4701183 Process for removing sulfur from coal Oct. 20, 1987
4695290 Integrated coal cleaning process with mixed acid regeneration Sep. 22, 1987
4681598 Method of removing pyritic sulfur from coal Jul. 21, 1987
4678478 Method for desulfurization of coal Jul. 7, 1987
4661240 Low sulfur coke using dispersed calcium Apr. 28, 1987
4661118 Method for oxidation of pyrite in coal to magnetite and low field magnetic separation thereof Apr. 28, 1987
4640692 Process for the elimination of pyrite Feb. 3, 1987
4569678 Method for removing pyritic, organic and elemental sulfur from coal Feb. 11, 1986
4561859 Low temperature aqueous desulfurization of coal Dec. 31, 1985
4545859 Method for producing needle coke Oct. 8, 1985
4543104 Coal treatment method and product produced therefrom Sep. 24, 1985
4522626 Process for treating high-sulfur caking coals to inactivate the sulfur and eliminate caking tendencies thereof Jun. 11, 1985
4522628 Method for removing ash mineral matter of coal with liquid carbon dioxide and water Jun. 11, 1985

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