C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
48/35, 196/5.4
C10G 1/00 (2006.01) C10J 3/00 (2006.01) C10J 3/06 (2006.01) C10J 3/54 (2006.01)
Patent
CA 1125208
U.S. 903,635 ABSTRACT OF THE DISCLOSURE 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 in the gasifier or similar reaction zone, alkali metal constituents are recovered from the particles by withdrawing and passing the particles from the reaction zone to an alkali metal recovery zone in the substantial absence of molecular oxygen and treating the particles in the recovery zone with water or an aqueous solution in the substantial absence of molecular oxygen. The solution formed by treating the particles in the recovery zone will contain water-soluble alkali metal constituents and is recycled to the conversion process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst.
325035
Clavenna Leroy R.
Gorbaty Martin L.
Sharp David W.
Tsou Joe
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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