Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1977-12-23
1979-06-26
Bashore, S. Leon
Gas: heating and illuminating
Processes
Fuel mixtures
48202, 48210, 208 9, 252412, 423127, C10J 306, C10J 354
Patent
active
041591950
ABSTRACT:
In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered from the particles by treating them with a calcium or magnesium-containing compound in the presence of water. The treating process is carried out under conditions such that the calcium or magnesium-containing compound reacts with water insoluble constituents of the alkali metal residues such as alkali metal aluminosilicates to produce an aqueous solution containing water soluble alkali metal constituents. The aqueous solution is recycled to the gasification process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst. The process permits increased recovery of alkali metal constituents, thereby decreasing the overall cost of the gasification process by reducing the amount of makeup alkali metal compounds necessary.
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Bashore S. Leon
Exxon Research & Engineering Co.
Finkle Yale S.
Kratz Peter F.
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