Liquid purification or separation – Processes – Including geographic feature
Patent
1989-01-17
1990-01-02
Hruskoci, Peter
Liquid purification or separation
Processes
Including geographic feature
62 502, 210761, 210766, C02A 174
Patent
active
048911399
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 liquifaction by a chemical operation which chemically strips the odor-producing compounds from the liquified off-gases.
REFERENCES:
patent: 4272383 (1981-06-01), McGrew
patent: 4704146 (1987-11-01), Markbrieter et al.
patent: 4822394 (1989-04-01), Ziegler et al.
Peterscheck Hermann W.
Zeigler Joseph E.
Gossett Dykema
Hruskoci Peter
Shideler Krisanne
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