Method of producing a steam stable aluminosilicate zeolite catal

Details Method of producing a steam stable aluminosilicate zeolite catal Method of producing a steam stable aluminosilicate zeolite catal

1979-01-22

1980-11-04

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

B01J 2904, B01J 2928

Patent

active

042318998

ABSTRACT:
Steam stable aluminosilicate zeolite catalysts are prepared by calcining said zeolites at an elevated temperature below about 1100.degree. F. in a closed system having a limited amount of oxygen wherein said zeolite contains organic cations and/or is in intimate contact with a charring agent thereby converting a portion of said organic cations or charring agent to a carbonaceous deposit within the pores of said zeolite in an amount from about 1.5-15 wt. % based on the total weight of the catalyst. Such catalysts are highly useful in the conversion of oxygenates, e.g., methanol to hydrocarbon products.

REFERENCES:
patent: 3525775 (1970-08-01), Bolton et al.
patent: 3676330 (1972-07-01), Plank et al.
patent: 3758403 (1973-09-01), Rosinski et al.

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