Removal of ammonia and cyanide from synthesis gas with water pro

Details Removal of ammonia and cyanide from synthesis gas with water pro Removal of ammonia and cyanide from synthesis gas with water pro

1998-01-30

1999-09-07

Killos, Paul J.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

252373, C01C 300, C07C 102

Patent

active

059483784

ABSTRACT:
A process for producing and cleaning a synthesis gas which contains ammonia and hydrogen cyanide catalytically converts most of the cyanide to ammonia which, along with some of the cyanide, is removed from the gas with water to form aqueous solutions of ammonia and cyanide. The hydrocarbon gas feed to the synthesis gas generator is used to strip ammonia and cyanide out of one or more of the aqueous solutions of these two species formed during the process and pass them into the generator in which they are consumed to form clean water. A portion of the resulting clean water is recycled back into the process where it used to scrub the synthesis gas, with the remainder used for other purposes or sent to disposal.

REFERENCES:
patent: 4189307 (1980-02-01), Marion
patent: 4769224 (1988-09-01), van Grinsven et al.
patent: 5068254 (1991-11-01), Posthuma et al.
patent: 5260239 (1993-11-01), Hsia
patent: 5283216 (1994-02-01), Mitchell

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