Efficiency of ammonia processes

Details Efficiency of ammonia processes Efficiency of ammonia processes

2011-01-11

2011-01-11

Griffin, Walter D (Department: 1774)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including plural reaction stages

C422S148000, C422S187000, C422S630000, C422S650000, C422S651000, C422S200000, C422S201000

Reexamination Certificate

active

07867460

ABSTRACT:
Systems and methods for producing ammonia. The system can include a first shell having two or more discrete catalyst beds disposed therein, a second shell disposed about the first shell, a first heat exchanger disposed external to the first shell and in fluid communication therewith, a second heat exchanger disposed external to the second shell and in fluid communication therewith, and a flow path disposed within the first shell. A first portion can be reacted in the presence of the catalyst to provide an ammonia effluent. The heat of reaction from the ammonia effluent can be exchanged within the first heat exchanger and the second heat exchanger. The heated second portion of the feed gas can be introduced to the first shell and can be reacted in the presence of the catalyst.

REFERENCES:
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patent: 4755362 (1988-07-01), Zardi
patent: 5254316 (1993-10-01), Zardi et al.
patent: 6482382 (2002-11-01), Gam et al.
patent: WO 2006/010565 (2006-02-01), None

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