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Title: Device for staged carbon monoxide oxidation

Abstract

A method and apparatus for selectively oxidizing carbon monoxide in a hydrogen rich feed stream. The method comprises mixing a feed stream consisting essentially of hydrogen, carbon dioxide, water and carbon monoxide with a first predetermined quantity of oxygen (air). The temperature of the mixed feed/oxygen stream is adjusted in a first the heat exchanger assembly (20) to a first temperature. The mixed feed/oxygen stream is sent to reaction chambers (30,32) having an oxidation catalyst contained therein. The carbon monoxide of the feed stream preferentially absorbs on the catalyst at the first temperature to react with the oxygen in the chambers (30,32) with minimal simultaneous reaction of the hydrogen to form an intermediate hydrogen rich process stream having a lower carbon monoxide content than the feed stream. The elevated outlet temperature of the process stream is carefully controlled in a second heat exchanger assembly (42) to a second temperature above the first temperature. The process stream is then mixed with a second predetermined quantity of oxygen (air). The carbon monoxide of the process stream preferentially reacts with the second quantity of oxygen in a second stage reaction chamber (56) with minimal simultaneous reaction of the hydrogen in the process stream.more » The reaction produces a hydrogen rich product stream having a lower carbon monoxide content than the process stream. The product stream is then cooled in a third heat exchanger assembly (72) to a third predetermined temperature. Three or more stages may be desirable, each with metered oxygen injection.« less

Inventors:
 [1];  [2];  [3]
  1. (Los Alamos, NM)
  2. (College Station, TX)
  3. (Denver, CO)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
869083
Patent Number(s):
US 5271916
Assignee:
General Motors Corporation (Detroit, MI) LANL
DOE Contract Number:  
F104-87AL45772
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
device; staged; carbon; monoxide; oxidation; method; apparatus; selectively; oxidizing; hydrogen; rich; feed; stream; comprises; mixing; consisting; essentially; dioxide; water; predetermined; quantity; oxygen; air; temperature; mixed; adjusted; heat; exchanger; assembly; 20; reaction; chambers; 30; 32; catalyst; contained; therein; preferentially; absorbs; react; minimal; simultaneous; form; intermediate; process; content; elevated; outlet; carefully; controlled; 42; reacts; stage; chamber; 56; produces; product; cooled; third; 72; stages; desirable; metered; injection; reaction chambers; third predetermined; oxidizing carbon; monoxide content; mixed feed; carefully controlled; product stream; process stream; method comprises; reaction chamber; consisting essentially; carbon dioxide; heat exchange; carbon monoxide; heat exchanger; feed stream; contained therein; predetermined temperature; oxidation catalyst; hydrogen rich; selectively oxidizing; outlet temperature; method comprise; comprises mixing; stage reaction; exchanger assembly; stream consisting; reaction produces; oxygen injection; oxygen stream; rich feed; oxide content; catalyst contained; /423/422/429/

Citation Formats

Vanderborgh, Nicholas E., Nguyen, Trung V., and Guante, Jr., Joseph. Device for staged carbon monoxide oxidation. United States: N. p., 1993. Web.
Vanderborgh, Nicholas E., Nguyen, Trung V., & Guante, Jr., Joseph. Device for staged carbon monoxide oxidation. United States.
Vanderborgh, Nicholas E., Nguyen, Trung V., and Guante, Jr., Joseph. Fri . "Device for staged carbon monoxide oxidation". United States. https://www.osti.gov/servlets/purl/869083.
@article{osti_869083,
title = {Device for staged carbon monoxide oxidation},
author = {Vanderborgh, Nicholas E. and Nguyen, Trung V. and Guante, Jr., Joseph},
abstractNote = {A method and apparatus for selectively oxidizing carbon monoxide in a hydrogen rich feed stream. The method comprises mixing a feed stream consisting essentially of hydrogen, carbon dioxide, water and carbon monoxide with a first predetermined quantity of oxygen (air). The temperature of the mixed feed/oxygen stream is adjusted in a first the heat exchanger assembly (20) to a first temperature. The mixed feed/oxygen stream is sent to reaction chambers (30,32) having an oxidation catalyst contained therein. The carbon monoxide of the feed stream preferentially absorbs on the catalyst at the first temperature to react with the oxygen in the chambers (30,32) with minimal simultaneous reaction of the hydrogen to form an intermediate hydrogen rich process stream having a lower carbon monoxide content than the feed stream. The elevated outlet temperature of the process stream is carefully controlled in a second heat exchanger assembly (42) to a second temperature above the first temperature. The process stream is then mixed with a second predetermined quantity of oxygen (air). The carbon monoxide of the process stream preferentially reacts with the second quantity of oxygen in a second stage reaction chamber (56) with minimal simultaneous reaction of the hydrogen in the process stream. The reaction produces a hydrogen rich product stream having a lower carbon monoxide content than the process stream. The product stream is then cooled in a third heat exchanger assembly (72) to a third predetermined temperature. Three or more stages may be desirable, each with metered oxygen injection.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

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