Conversion of methane

Details Conversion of methane Conversion of methane

1989-10-16

1991-04-30

Pal, Asok

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

585658, 585943, 568910, C07C 202

Patent

active

050120298

ABSTRACT:
A mixture of organic compounds comprising a major amount of liquid hydrocarbons, mostly aromatic, is formed by the direct partial oxidation of methane in the presence of a ZSM-5 catalyst. The reaction conditions are substantially the same as those required for the direct homogeneous partial oxidation to methanol. However, liquid hydrocarbon formation depends on the presence of a small amount of an impurity such as propane or propylene in the feed; in the absence of such, only methanol is formed. With such modifier present, controls of reaction parameters, e.g., temperature, permits synthesis of both methanol and liquid hydrocarbons in desired proportions. Properly processed natural gas can serve to provide methane and at least part of the reaction modifier.

REFERENCES:
patent: 3965205 (1976-06-01), Garwood et al.
patent: 4433189 (1984-02-01), Young
patent: 4497970 (1985-02-01), Young
patent: 4618732 (1986-10-01), Gesser et al.
patent: 4695663 (1987-09-01), Hall et al.
Shepelev, S. S. et al., Reaction Kinetic Catal. Lett., vol. 23, 3-4, pp. 323-325 (1983).

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