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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)
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. 1988. "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 = {},
url = {https://www.osti.gov/biblio/866536}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}