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Title: Solid sorbents for CO2 capture from post-combustion and pre-combustion gas streams

Abstract

Combustion of fossil fuels is one of the major sources of the greenhouse gas CO2. Pressure swing adsorption/sorption (PSA/PSS) and temperature swing adsorption/sorption (TSA/TSS) are some of the potential techniques that could be utilized for removal of CO2 from fuel gas streams. NETL researchers have developed novel CO2 capture sorbents for both low and moderate temperature applications. A novel liquid impregnated solid sorbent was developed for CO2 removal in the temperature range of ambient to 60 °C, which is regenerable at 60-80 °C, and is suitable for various reactor configurations. Multi-cycle tests conducted in an atmospheric bench scale reactor with simulated moist flue gas indicated that the sorbent retains its CO2 sorption capacity with CO2 removal efficiency of about 99%. The sorbent was also tested in a high pressure (20 atm) bench scale flow reactor with simulated coal gas. The CO2 sorption capacity at high pressure was higher than that at atmospheric pressure. It was possible to regenerate the sorbent at 20 atm in the presence of water vapor. A novel, regenerable solid sorbent containing mixture of alkali earth and alkali compounds was also developed for CO2 removal at 200-315 °C from high pressure gas streams suitable for IGCC systems.more » The sorbent showed very high capacity for CO2 removal from a gas streams containing 28% CO2 at 200 °C and at 20 atm during a lab scale reactor test. Results of the multi-cycle test with the sorbent and potential applications will also be discussed.« less

Authors:
;
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV
Sponsoring Org.:
USDOE - Office of Fossil Energy (FE)
OSTI Identifier:
913331
Report Number(s):
DOE/NETL-IR-2007-105
TRN: US200802%%775
DOE Contract Number:  
None cited
Resource Type:
Conference
Resource Relation:
Conference: ACS 233rd National Meeting, Chicago, IL, Mar. 25-29, 2007
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ATMOSPHERIC PRESSURE; CAPACITY; COAL GAS; COMBUSTION; EFFICIENCY; FLUE GAS; FOSSIL FUELS; FUEL GAS; GREENHOUSE GASES; MIXTURES; REMOVAL; SORPTION; WATER VAPOR; greenhouse gases; carbon dioxide capture; CO2 sorption; alkali

Citation Formats

Siriwardane, R.V., and Robinson, C. Stevens, R.W., Jr. Solid sorbents for CO2 capture from post-combustion and pre-combustion gas streams. United States: N. p., 2007. Web.
Siriwardane, R.V., & Robinson, C. Stevens, R.W., Jr. Solid sorbents for CO2 capture from post-combustion and pre-combustion gas streams. United States.
Siriwardane, R.V., and Robinson, C. Stevens, R.W., Jr. Thu . "Solid sorbents for CO2 capture from post-combustion and pre-combustion gas streams". United States. doi:.
@article{osti_913331,
title = {Solid sorbents for CO2 capture from post-combustion and pre-combustion gas streams},
author = {Siriwardane, R.V. and Robinson, C. Stevens, R.W., Jr.},
abstractNote = {Combustion of fossil fuels is one of the major sources of the greenhouse gas CO2. Pressure swing adsorption/sorption (PSA/PSS) and temperature swing adsorption/sorption (TSA/TSS) are some of the potential techniques that could be utilized for removal of CO2 from fuel gas streams. NETL researchers have developed novel CO2 capture sorbents for both low and moderate temperature applications. A novel liquid impregnated solid sorbent was developed for CO2 removal in the temperature range of ambient to 60 °C, which is regenerable at 60-80 °C, and is suitable for various reactor configurations. Multi-cycle tests conducted in an atmospheric bench scale reactor with simulated moist flue gas indicated that the sorbent retains its CO2 sorption capacity with CO2 removal efficiency of about 99%. The sorbent was also tested in a high pressure (20 atm) bench scale flow reactor with simulated coal gas. The CO2 sorption capacity at high pressure was higher than that at atmospheric pressure. It was possible to regenerate the sorbent at 20 atm in the presence of water vapor. A novel, regenerable solid sorbent containing mixture of alkali earth and alkali compounds was also developed for CO2 removal at 200-315 °C from high pressure gas streams suitable for IGCC systems. The sorbent showed very high capacity for CO2 removal from a gas streams containing 28% CO2 at 200 °C and at 20 atm during a lab scale reactor test. Results of the multi-cycle test with the sorbent and potential applications will also be discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}

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