Production of hydrocarbons from methanol in the presence of zeol

Details Production of hydrocarbons from methanol in the presence of zeol Production of hydrocarbons from methanol in the presence of zeol

1982-12-17

1984-05-08

Gantz, Delbert E.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

From nonhydrocarbon feed

585324, 585408, 585469, 585639, 585733, 502 78, C07C 120, C07C 100

Patent

active

044476698

ABSTRACT:
Production of unsaturated hydrocarbons of 2-5 carbon atoms from methanol in the presence of zeolitic catalysts is effected by introducing gaseous methanol into a carrier gas, the concentration of the methanol in the entering mixture being between 5 and 60% by volume, and passing the mixture through a catalytic bed based on synthetic mordenite of the so-called de-aluminized type whose Si/Al ratio (atomic) is higher than 80, the flow rate of the methanol being between 1 and 5 liters of liquid methanol per liter of catalyst and per hour. The reaction is carried out at a temperature between 350.degree. and 550.degree. C., under a pressure which can reach 20 bars. The de-aluminized synthetic mordenite is prepared by subjecting the mordenite to a series of alternate acid and hydrothermic treatments, the said series commencing with an acid treatment and terminating with an acid treatment.

REFERENCES:
patent: 3551353 (1968-10-01), Chen et al.
patent: 3728408 (1973-04-01), Tobias
patent: 4052472 (1977-10-01), Givens et al.
patent: 4273753 (1981-06-01), Chang
Jong et al., C. R. Hebd Seances Acad. Sci. Ser. C., 1979, 288(8), 245-248, CA 91:125833j).

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