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AssigneeExxonMobil Research and Engineering Company
InventorsRussell John Koveal, Michel Daage, Charles Harrison Mauldin, Janet Renee Clark
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A process for enhancing metal catalysts for carbon monoxide hydrogenation comprising reducing the catalyst so that at least a portion is in the metallic state, impregnating under a non-oxidative atmosphere with a solution of a salt of at least one metal, optionally in combination with at least one of an ammonium salt, an alkyl ammonium salt, a weak organic acid and ammonia, oxidizing with a gaseous oxidant in the presence of the impregnating solution, and reducing to form an active catalyst. Used catalysts enhanced by the process are initially treated to decrease their hydrocarbon content. The treatment may be carried out in a single reactor, or by carrying out up to all steps after catalyst may be withdrawn from a reactor and returned to at least one reactor, both preferably during operations. Up to all steps may be effected in a subsequent reactor, or in specialized apparatus.
A process for the enhancement of a metal catalyst for the catalytic hydrogenation of carbon monoxide, said catalyst comprising one or more members selected from the group consisting of Co, Ni, Cu, Ru, Rh, Pd, Os, Ir, Re and Pt, the process comprising:
A process for the catalytic hydrogenation of carbon monoxide to produce a mixture of hydrocarbons in a carbon monoxide hydrogenation reactor utilizing a metal catalyst comprising one or more members selected from the group consisting of Co, Ni, Cu, Ru, Rh, Pd, Os, Ir, Re and Pt, said process including enhancing at least a portion of the catalyst during operation of said reactor by a process comprising:
Dependencies are inferred from the claim text.