Method and apparatus for the production and liquefaction of gase

Details Method and apparatus for the production and liquefaction of gase Method and apparatus for the production and liquefaction of gase

1987-09-14

1989-04-18

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 52, F25J 300

Patent

active

048223948

ABSTRACT:
The present invention provides a method and apparatus for collecting and liquefying off-gases, particularly carbon dioxide, generated by a wet oxidation of organic matter and for the on sight gasification of liquid oxygen for use as an oxidant in the wet oxidation reaction. Through a series of separation and pressurization operations, high pressure off-gases are introduced into a heat exchanger at substantially the same time as liquid oxygen. The liquid oxygen and compressed off-gases are in heat exchange relation in the heat exchanger but are isolated from one another. Heat is transferred from the compressed off-gases to the liquid oxygen whereby the off-gases are liquified and the liquid oxygen is gasified. The liquified off-gases may then be stored in appropriate storage units. The gaseous oxygen is used as the oxidant for the wet oxidation reaction. In another aspect, odor-producing compounds are removed from the off-gases by a condensation process wherein the odor-producing compounds are separated from the off-gases by condensation. In still another aspect, these odor-producing compounds are removed from the off-gases after liquefaction by a chemical stripping operation which chemically strips the odor-producing compounds from the liquefied off-gases.

REFERENCES:
patent: 4272383 (1981-06-01), McGrew
patent: 4704146 (1987-11-01), Markbrieter et al.

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