Method of retrofitting a heterogeneous exothermic synthesis reactor
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United States of America Patent
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Mar 16, 1999
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N/A
app pub date -
Oct 30, 1996
filing date -
Oct 29, 1993
priority date (Note) -
Expired
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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).
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