C - Chemistry – Metallurgy – 01 – C
Patent
C - Chemistry, Metallurgy
01
C
23/217, 23/371,
C01C 1/08 (2006.01) B01J 8/00 (2006.01) B01J 8/04 (2006.01) C01C 1/04 (2006.01)
Patent
CA 1211615
ABSTRACT OF THE DISCLOSURE The present invention is generally directed (Fig. 2) to an improved process and apparatus for the produc- tion of gaseous products such as ammonia by catalytic, exo- thermic gaseous reactions and is specifically directed to an improved process which utilizes a gas-phase catalytic reac- tion of nitrogen and hydrogen for the synthesis of ammonia. This improved process for the production of ammonia utilizes an ammonia converter apparatus 110 designed to comprise at least two catalyst stages 102 and 106 and a reheat exchanger 104 so arranged as to provide indirect heat exchange of the gaseous effluent 107 from the last reactor catalyst stage 106 with the effluent from at least one other reactor cata- lyst stage (e.g., 103) having a higher temperature level in order to reheat the effluent from the last reactor catalyst stage 107 prior to exiting the reactor vessel 110, thereby facilitating higher level heat recovery from the reactor effluent.
448237
Osman Robert M.
Shulik Larry J.
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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