Combined heat exchanger system such as for ammonia synthesis rea

Details Combined heat exchanger system such as for ammonia synthesis rea Combined heat exchanger system such as for ammonia synthesis rea

1989-03-22

1990-03-13

Nilson, Robert G.

Heat exchange

Regenerator

Checker brick structure

1651341, 165140, 165145, F28F 100

Patent

active

049076434

ABSTRACT:
A combined heat exchanger particularly suited for ammonia converter reactor effluent is described. The combined exchanger includes a first exchanger and a high temperature heat sink, such as a steam superheater, within a single exchanger shell. In a preferred embodiment, gas leaving the ammonia converter is conveyed into a single pass tube bundle which comprises the feed-effluent exchanger section and then passes through a tubesheet which separates the feed effluent exchanger section from the steam superheater section, passing over a U-tube bundle which comprises the steam superheater section in the other part of the shell. Means are provided for protecting the shell in the steam superheater section adjacent the tubesheet.

REFERENCES:
patent: 4193447 (1980-03-01), Fah
patent: 4620588 (1986-11-01), Pfouts

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