Process for ammonia syngas manufacture
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United States of America Patent
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-
Mar 25, 1986
Grant Date -
N/A
app pub date -
Feb 6, 1984
filing date -
Feb 6, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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