Gas: heating and illuminating – Processes – Coal and water
Patent
1980-05-19
1982-03-09
Kratz, Peter F.
Gas: heating and illuminating
Processes
Coal and water
48197R, 48210, 252373, C10J 354
Patent
active
043187129
ABSTRACT:
A carbonaceous feed material, a potassium compound having a relatively poor catalytic activity as compared to that of potassium carbonate, and a sodium or lithium salt are introduced into a gasification reactor. The carbonaceous material is then gasified in the presence of the added potassium and sodium or lithium constituents. The added sodium or lithium salt apparently activates the relatively noncatalytic potassium compound thereby producing a substantial catalytic effect on the gasification reactions. In general, activation of the noncatalytic potassium compound will take place when the sodium or lithium compound introduced into the reactor is either a salt of a weak acid or a salt of a strong acid that is converted to a sodium or lithium salt of a weak acid in the reactor at gasification conditions.
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patent: 4094650 (1978-06-01), Koh et al.
"Effect of Alkali Metal Catalysts on Gasification of Coal Char", Verou et al., Fuel, vol. 57, No. 4, 1978, pp. 194-200.
"Catalysis in the Interaction of Carbon with Steam and with Carbon Dioxide", Taylor et al., J. Am. Chem. Soc., vol. 43, 1921, pp. 2055-2071.
"The Use of Catalysts in Coal Gasification", Johnson, Catal Rev.-Sci. Engr., vol. 14, Nov. 1, 1976, pp. 131-152.
Lang Robert J.
Pabst Joanne K.
Exxon Research & Engineering Co.
Finkle Yale S.
Kratz Peter F.
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