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Title: Carbon dioxide pressure swing adsorption process using modified alumina adsorbents

Abstract

A pressure swing adsorption process for absorbing CO.sub.2 from a gaseous mixture containing CO.sub.2 comprising introducing the gaseous mixture at a first pressure into a reactor containing a modified alumina adsorbent maintained at a temperature ranging from 100.degree. C. and 500.degree. C. to adsorb CO.sub.2 to provide a CO.sub.2 laden alumina adsorbent and a CO.sub.2 depleted gaseous mixture and contacting the CO.sub.2 laden adsorbent with a weakly adsorbing purge fluid at a second pressure which is lower than the first pressure to desorb CO.sub.2 from the CO.sub.2 laden alumina adsorbent. The modified alumina adsorbent which is formed by depositing a solution having a pH of 3.0 or more onto alumina and heating the alumina to a temperature ranging from 100.degree. C. and 600.degree. C., is not degraded by high concentrations of water under process operating conditions.

Inventors:
 [1];  [1];  [1];  [2];  [1]
  1. (Allentown, PA)
  2. (Bethlehem, PA)
Issue Date:
Research Org.:
Air Products and Chemicals, Inc. (Allentown, PA)
OSTI Identifier:
872358
Patent Number(s):
5917136
Assignee:
Air Products and Chemicals, Inc. (Allentown, PA) GFO
DOE Contract Number:  
FC36-95GO10059
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
carbon; dioxide; pressure; swing; adsorption; process; modified; alumina; adsorbents; absorbing; gaseous; mixture; containing; comprising; introducing; reactor; adsorbent; maintained; temperature; ranging; 100; degree; 500; adsorb; provide; laden; depleted; contacting; weakly; adsorbing; purge; fluid; desorb; formed; depositing; solution; ph; heating; 600; degraded; concentrations; water; operating; conditions; temperature ranging; reactor containing; operating conditions; mixture containing; gaseous mixture; carbon dioxide; pressure swing; operating condition; swing adsorption; comprising introducing; adsorption process; sorption process; /95/

Citation Formats

Gaffney, Thomas Richard, Golden, Timothy Christopher, Mayorga, Steven Gerard, Brzozowski, Jeffrey Richard, and Taylor, Fred William. Carbon dioxide pressure swing adsorption process using modified alumina adsorbents. United States: N. p., 1999. Web.
Gaffney, Thomas Richard, Golden, Timothy Christopher, Mayorga, Steven Gerard, Brzozowski, Jeffrey Richard, & Taylor, Fred William. Carbon dioxide pressure swing adsorption process using modified alumina adsorbents. United States.
Gaffney, Thomas Richard, Golden, Timothy Christopher, Mayorga, Steven Gerard, Brzozowski, Jeffrey Richard, and Taylor, Fred William. Fri . "Carbon dioxide pressure swing adsorption process using modified alumina adsorbents". United States. https://www.osti.gov/servlets/purl/872358.
@article{osti_872358,
title = {Carbon dioxide pressure swing adsorption process using modified alumina adsorbents},
author = {Gaffney, Thomas Richard and Golden, Timothy Christopher and Mayorga, Steven Gerard and Brzozowski, Jeffrey Richard and Taylor, Fred William},
abstractNote = {A pressure swing adsorption process for absorbing CO.sub.2 from a gaseous mixture containing CO.sub.2 comprising introducing the gaseous mixture at a first pressure into a reactor containing a modified alumina adsorbent maintained at a temperature ranging from 100.degree. C. and 500.degree. C. to adsorb CO.sub.2 to provide a CO.sub.2 laden alumina adsorbent and a CO.sub.2 depleted gaseous mixture and contacting the CO.sub.2 laden adsorbent with a weakly adsorbing purge fluid at a second pressure which is lower than the first pressure to desorb CO.sub.2 from the CO.sub.2 laden alumina adsorbent. The modified alumina adsorbent which is formed by depositing a solution having a pH of 3.0 or more onto alumina and heating the alumina to a temperature ranging from 100.degree. C. and 600.degree. C., is not degraded by high concentrations of water under process operating conditions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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