Process for ammonia syngas manufacture

Details Process for ammonia syngas manufacture Process for ammonia syngas manufacture

1984-02-06

1986-03-25

Doll, John

Compositions

Gaseous compositions

Nitrogen and hydrogen containing

252377, 423359, C01C 104

Patent

active

045782148

ABSTRACT:
A process for producing ammonia synthesis gas in which a pressure swing adsorption unit is utilized to replace former CO.sub.2 removal, methanation, drying and purification steps. To increase the efficiency of the process, a hydrogen fuel cell is utilized to generate electricity and a high purity nitrogen purge stream for a pressure swing absorption unit. Accordingly, after reforming and high temperature catalytic shift conversion, the feed stream is divided into a first stream to feed the fuel cell and a second stream which is directly introduced to the pressure swing adsorption unit. After the first stream is reacted in the fuel cell, a nitrogen rich stream is passed to a de-oxygenation unit and then utilized as the pressure swing adsorption purge stream.

REFERENCES:
patent: 3469944 (1969-09-01), Bocard et al.
patent: 4200682 (1980-04-01), Sederquist
patent: 4337170 (1982-06-01), Fuderer
patent: 4375363 (1983-03-01), Fuderer
patent: 4414191 (1983-11-01), Fuderer
"Ammonia Process Boasts Higher Efficiency", Oil & Gas Journal (May 4, 1981), vol. 79, No. 18, pp. 270-280.

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