Method of retrofitting a heterogeneous exothermic synthesis reac

Details Method of retrofitting a heterogeneous exothermic synthesis reac Method of retrofitting a heterogeneous exothermic synthesis reac

1996-10-30

1999-03-16

McMahon, Timothy

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Ammonia synthesizer

422190, 422201, 423360, 423361, 423659, B32B 2704

Patent

active

058826068

ABSTRACT:
In a method of modernizing a heterogeneous exothermic synthesis reactor (1) of the type comprising an external shell (2), in which at least one catalytic bed (15, 16, 17) is supported, the catalytic bed (15, 16, 17) is connected to an external boiler (21), for generating high pressure steam, by means of a reacted gas outlet nozzle (4) and a conduit (29) extending in said nozzle (4) thereby forming an annular airspace (30). Advantageously, the airspace (30) defines an outlet flowpath of the gases cooled in the boiler (21) which avoids overheating of the nozzle (4).

REFERENCES:
patent: 4554135 (1985-11-01), Grotz et al.
patent: 4744966 (1988-05-01), Grotz
patent: 4755362 (1988-07-01), Zardi
patent: 4935210 (1990-06-01), Zardi et al.
patent: 5152997 (1992-10-01), Zardi et al.
patent: 5236671 (1993-08-01), Grotz
EP 202454 (Derwent Abstact) Nov., 1986.

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