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Title: Low energy consumption method for separating gaseous mixtures and in particular for medium purity oxygen production

Abstract

A method for the separation of gaseous mixtures such as air and for producing medium purity oxygen, comprising compressing the gaseous mixture in a first compressor to about 3.9-4.1 atmospheres pressure, passing said compressed gaseous mixture in heat exchange relationship with sub-ambient temperature gaseous nitrogen, dividing the cooled, pressurized gaseous mixture into first and second streams, introducing the first stream into the high pressure chamber of a double rectification column, separating the gaseous mixture in the rectification column into a liquid oxygen-enriched stream and a gaseous nitrogen stream and supplying the gaseous nitrogen stream for cooling the compressed gaseous mixture, removing the liquid oxygen-enriched stream from the low pressure chamber of the rectification column and pumping the liquid, oxygen-enriched steam to a predetermined pressure, cooling the second stream, condensing the cooled second stream and evaporating the oxygen-enriched stream in an evaporator-condenser, delivering the condensed second stream to the high pressure chamber of the rectification column, and heating the oxygen-enriched stream and blending the oxygen-enriched stream with a compressed blend-air stream to the desired oxygen concentration.

Inventors:
 [1];  [2];  [3]
  1. (North Olmsted, OH)
  2. (Olmsted Falls, OH)
  3. (New York, NY)
Publication Date:
OSTI Identifier:
866536
Patent Number(s):
US 4732597
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
energy; consumption; method; separating; gaseous; mixtures; particular; medium; purity; oxygen; production; separation; air; producing; comprising; compressing; mixture; compressor; 9-4; atmospheres; pressure; passing; compressed; heat; exchange; relationship; sub-ambient; temperature; nitrogen; dividing; cooled; pressurized; streams; introducing; stream; chamber; double; rectification; column; liquid; oxygen-enriched; supplying; cooling; removing; pumping; steam; predetermined; condensing; evaporating; evaporator-condenser; delivering; condensed; heating; blending; blend-air; desired; concentration; oxygen production; energy consumption; oxygen concentration; temperature gas; compressed gas; predetermined pressure; pressure chamber; air stream; gaseous mixture; heat exchange; ambient temperature; exchange relationship; pressurized gas; exchange relation; gaseous nitrogen; gaseous mixtures; separating gaseous; separating gas; purity oxygen; medium purity; oxygen product; atmospheres pressure; /62/

Citation Formats

Jujasz, Albert J., Burkhart, James A., and Greenberg, Ralph. Low energy consumption method for separating gaseous mixtures and in particular for medium purity oxygen production. United States: N. p., 1988. Web.
Jujasz, Albert J., Burkhart, James A., & Greenberg, Ralph. Low energy consumption method for separating gaseous mixtures and in particular for medium purity oxygen production. United States.
Jujasz, Albert J., Burkhart, James A., and Greenberg, Ralph. Fri . "Low energy consumption method for separating gaseous mixtures and in particular for medium purity oxygen production". United States. https://www.osti.gov/servlets/purl/866536.
@article{osti_866536,
title = {Low energy consumption method for separating gaseous mixtures and in particular for medium purity oxygen production},
author = {Jujasz, Albert J. and Burkhart, James A. and Greenberg, Ralph},
abstractNote = {A method for the separation of gaseous mixtures such as air and for producing medium purity oxygen, comprising compressing the gaseous mixture in a first compressor to about 3.9-4.1 atmospheres pressure, passing said compressed gaseous mixture in heat exchange relationship with sub-ambient temperature gaseous nitrogen, dividing the cooled, pressurized gaseous mixture into first and second streams, introducing the first stream into the high pressure chamber of a double rectification column, separating the gaseous mixture in the rectification column into a liquid oxygen-enriched stream and a gaseous nitrogen stream and supplying the gaseous nitrogen stream for cooling the compressed gaseous mixture, removing the liquid oxygen-enriched stream from the low pressure chamber of the rectification column and pumping the liquid, oxygen-enriched steam to a predetermined pressure, cooling the second stream, condensing the cooled second stream and evaporating the oxygen-enriched stream in an evaporator-condenser, delivering the condensed second stream to the high pressure chamber of the rectification column, and heating the oxygen-enriched stream and blending the oxygen-enriched stream with a compressed blend-air stream to the desired oxygen concentration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}

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