Process for the simultaneous production of methanol synthesis ga

Details Process for the simultaneous production of methanol synthesis ga Process for the simultaneous production of methanol synthesis ga

1983-01-10

1989-03-07

Moyer, Donald B.

Compositions

Gaseous compositions

Carbon-oxide and hydrogen containing

252376, 252377, 518703, 518705, 423359, C10J 300

Patent

active

048104175

ABSTRACT:
A process for the simultaneous production of methanol synthesis gas and ammonia synthesis gas proceeds from the crude gas of a coal gasification, which initially is subjected to a H.sub.2 S-washing at low temperatures. Then follows a splitting of the desulfurized gas into two partial streams, of which one partial stream is led directly into the CO.sub.2 -washing which serves for production of the methanol-synthesis gas. Another partial stream is in contrast initially subjected to a conversion. From the converted gas then a partial stream is branched off which is provided for the production of ammonia-synthesis gas, whereas the remainder of the converted gas is led into the CO.sub.2 -washing serving for the production of the methanol-synthesis gas. The partial straem serving for the production of the ammonia-synthesis gas is treated to a separate CO.sub.2 -washing, in which simultaneously the so-called purge gas from the ammonia-synthesis is led in. The H.sub.2 S-washing and the CO.sub.2 -washings are conneced with each other by a common washing agent circulation.

REFERENCES:
patent: 3418082 (1968-12-01), Ter Haar
patent: 3872025 (1975-03-01), Singleton
patent: 4254094 (1981-03-01), Hegarty
Staege, H. F., "Entrained Bed Gasification", Hydrocarbon Processing, Mar. 1982, pp. 92-96.
"Gas Processing Handbook", Hydrocarbon Processing, Apr. 1979, p. 153.

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