Catalyst for the direct conversion of methane to higher hydrocar

Details Catalyst for the direct conversion of methane to higher hydrocar Catalyst for the direct conversion of methane to higher hydrocar

1993-01-25

1994-06-14

Garvin, Patrick P.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

585654, 585656, 585658, 585661, 585943, 585700, C07C 200

Patent

active

053211871

ABSTRACT:
A method for preparing a catalyst for conversion of methane to higher hydrocarbons, discloses the steps of: forming a mixture of a manganese aqueous solution and an oxidative agent aqueous solution in an inorganic oxide support material; varying a pH value of the mixture between acidic and basic values to obtain a precipitate of manganese oxide; drying the manganese oxide precipitate; impregnating the dried manganese oxide precipitate with a promoter to obtain an impregnated solid; drying the impregnated solid; and calcining the impregnated solid until a surface atomic ratio of promoter to manganese is at least 5. The catalyst so acquired may be contacted with a methane gas to obtain stable conversion values over extended reaction times.

REFERENCES:
patent: 4499322 (1985-02-01), Jones et al.
patent: 4547610 (1985-10-01), Sofranko et al.
patent: 4613718 (1986-09-01), Jaecker et al.
patent: 4634800 (1987-01-01), Withers, Jr. et al.
patent: 4650781 (1987-03-01), Jones et al.

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