Chemistry: fischer-tropsch processes; or purification or recover – Including regeneration of catalyst
Patent
1991-07-30
1992-06-02
Mars, Howard T.
Chemistry: fischer-tropsch processes; or purification or recover
Including regeneration of catalyst
518715, 518717, C07C 104
Patent
active
051188910
ABSTRACT:
A composition for use after reductive activation as a catalyst in the conversion of synthesis gas to hydrocarbons, the composition having formula: Ru.sub.z A.sub.b CeO.sub.x, wherein A is an alkali metal, x is a number such that the valence requirements of the other elements for oxygen is satisfied, a is greater than zero and less than 5% w/w, based on the total weight of the composition, b is in the range from zero to 10% w/w, based on the total weight of the composition, and Ce and O constitute the remainder of the composition, is produced by the steps of: (A) adding a solution or solutions of soluble compounds of the metals ruthenium and cerium, and optionally also an alkali metal compound, to a solution of a precipitant comprising a carbonate and/or a bicarbonate and/or a hydroxide of an alkali metal or ammonium under conditions whereby there is formed a precipitate comprising ruthenium and cerium, and optionally also an alkali metal, in the form of compounds thermally decomposable to the metals and/or their oxides, and (B) recovering the precipitate obtained in step (A).
REFERENCES:
patent: 2358050 (1944-09-01), Boulet
patent: 2572633 (1951-10-01), Lanning
patent: 2620346 (1952-12-01), Rubin et al.
patent: 4001143 (1977-01-01), McCann, III
patent: 4060500 (1977-11-01), Clavenna
patent: 4172849 (1979-10-01), Drake
patent: 4755537 (1988-07-01), Cotton et al.
Butler Graham
Heyward Malcolm P.
Mars Howard T.
The British Petroleum Company p.l.c.
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