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U.S. Department of Energy
Office of Scientific and Technical Information

Methanol synthesis catalyst

Patent ·
OSTI ID:5989226
This patent gives the particulars of a catalyst composition to be used for the conversion of syngas to methanol. It includes copper, zinc and a modifier selected from the group consisting of yttrium, a lanthanide element, an actinide element and mixtures thereof supported on a zinc-aluminum oxide spinel carrier wherein the amount of the modifier is form 1 to 25 weight percent based on total catalyst composition, calculated as metal, the relative proportions of copper oxide to zinc oxide are from 1:10 to 20:1, calculated as weight percent metal. The process consists of: A. precipitating a first precipitate from an aqueous solution of dissolved zinc and aluminum salts utilizing as a precipitating agent an aqueous solution of alkali metal or ammonium carbonate, B. slurrying the first precipitate in an aqueous solution containing dissolved salts of copper, zinc and promoter, C. precipitating a second precipitate from the slurry-solution of step B utilizing as a precipitating agent an aqueous solution of alkali metal or ammonium carbonate, D. Washing, Drying and calcining the precipitate of step C at a temperature ranging from about 200/sup 0/C to about 400/sup 0/C and E. activating in a hydrogen-containing atmosphere at a temperatue ranging from about 175/sup 0/C to about 400/sup 0/C.
Assignee:
Shell Oil Co., Houston, TX
Patent Number(s):
US 4565803
OSTI ID:
5989226
Country of Publication:
United States
Language:
English