Gas conversion with rejuvenation ammonia removal

Details Gas conversion with rejuvenation ammonia removal Gas conversion with rejuvenation ammonia removal

1998-01-30

1999-07-27

Killos, Paul J.

Chemistry: fischer-tropsch processes; or purification or recover

Including regeneration of catalyst

518702, 518700, 518715, 252373, 423236, C07C 2700, C07C 102, C01C 300

Patent

active

059291265

ABSTRACT:
A gas conversion process includes producing a synthesis gas which contains ammonia and hydrogen cyanide and forms hydrocarbons by reacting the hydrogen and carbon monoxide in the gas in the presence of a hydrocarbon synthesis catalyst also reversibly deactivates the catalyst due to the presence of the ammonia and hydrogen cyanide in the gas. The catalyst is rejuvenated with a gas comprising hydrogen and produces an ammonia containing rejuvenation offgas. The ammonia is dissolved out of the offgas with water and then stripped out of the water with the hydrocarbon feed to the synthesis gas generator and into the generator where it is consumed.

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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