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Class Information
Number: 48/DIG.1
Name: Gas: heating and illuminating > Recirculation of gases produced to lower part of fuel bed

Patents under this class:

Patent Number Title Of Patent Date Issued
6311629 Process and device for gasification of waste Nov. 6, 2001
5788724 Process for the conversion of hydrocarbon materials having a high molecular weight Aug. 4, 1998
5647876 Method of removing volatile metals from slag using an acid wash Jul. 15, 1997
4840129 Pyrolysis system Jun. 20, 1989
4678480 Process for producing and using syngas and recovering methane enricher gas therefrom Jul. 7, 1987
4526588 Process for the production of a coal-water suspension which is suitable for use in coal gasification under elevated pressure Jul. 2, 1985
4431622 Process for producing CO.sub.2, and CO.sub.2 so produced Feb. 14, 1984
4313499 Subterranean gasification of bituminous coal Feb. 2, 1982
4164397 Fuel gas production Aug. 14, 1979

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