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Title: CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS

Abstract

The objective of this project is to develop a simple and inexpensive process to separate CO{sub 2} as an essentially pure stream from a fossil fuel combustion system using a regenerable sorbent. The sorbents being investigated in this project are primarily alkali carbonates, and particularly sodium carbonate and potassium carbonate, which are converted to bicarbonates or intermediate salts through reaction with carbon dioxide and water vapor. Bicarbonates are regenerated to carbonates when heated, producing a nearly pure CO{sub 2} stream after condensation of water vapor. This quarter, electrobalance tests suggested that high calcination temperatures decrease the activity of sodium bicarbonate Grade 1 (SBC No.1) during subsequent carbonation cycles, but there is little or no progressive decrease in activity in successive cycles. SBC No.1 appears to be more active than SBC No.3. As expected, the presence of SO{sub 2} in simulated flue gas results in a progressive loss of sorbent capacity with increasing cycles. This is most likely due to an irreversible reaction to produce Na{sub 2}SO{sub 3}. This compound appears to be stable at calcination temperatures as high as 200 C. Tests of 40% supported potassium carbonate sorbent and plain support material suggest that some of the activity observed inmore » tests of the supported sorbent may be due to adsorption by the support material rather than to carbonation of the sorbent.« less

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Research Triangle Institute (US)
Sponsoring Org.:
(US)
OSTI Identifier:
816480
DOE Contract Number:  
FC26-00NT40923
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jan 2003
Country of Publication:
United States
Language:
English
Subject:
29 ENERGY PLANNING, POLICY AND ECONOMY; ACID CARBONATES; ADSORPTION; CALCINATION; CAPACITY; CARBON DIOXIDE; CARBONATES; COMBUSTION; FLUE GAS; FOSSIL FUELS; HYDROXIDES; POTASSIUM CARBONATES; SODIUM; SODIUM CARBONATES; WATER VAPOR

Citation Formats

Green, David A, Turk, Brian S, Portzer, Jeffrey W, Gupta, Raghubir P, McMichael, William J, Liang, Ya, and Harrison, Douglas P. CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS. United States: N. p., 2003. Web. doi:10.2172/816480.
Green, David A, Turk, Brian S, Portzer, Jeffrey W, Gupta, Raghubir P, McMichael, William J, Liang, Ya, & Harrison, Douglas P. CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS. United States. https://doi.org/10.2172/816480
Green, David A, Turk, Brian S, Portzer, Jeffrey W, Gupta, Raghubir P, McMichael, William J, Liang, Ya, and Harrison, Douglas P. 2003. "CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS". United States. https://doi.org/10.2172/816480. https://www.osti.gov/servlets/purl/816480.
@article{osti_816480,
title = {CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS},
author = {Green, David A and Turk, Brian S and Portzer, Jeffrey W and Gupta, Raghubir P and McMichael, William J and Liang, Ya and Harrison, Douglas P},
abstractNote = {The objective of this project is to develop a simple and inexpensive process to separate CO{sub 2} as an essentially pure stream from a fossil fuel combustion system using a regenerable sorbent. The sorbents being investigated in this project are primarily alkali carbonates, and particularly sodium carbonate and potassium carbonate, which are converted to bicarbonates or intermediate salts through reaction with carbon dioxide and water vapor. Bicarbonates are regenerated to carbonates when heated, producing a nearly pure CO{sub 2} stream after condensation of water vapor. This quarter, electrobalance tests suggested that high calcination temperatures decrease the activity of sodium bicarbonate Grade 1 (SBC No.1) during subsequent carbonation cycles, but there is little or no progressive decrease in activity in successive cycles. SBC No.1 appears to be more active than SBC No.3. As expected, the presence of SO{sub 2} in simulated flue gas results in a progressive loss of sorbent capacity with increasing cycles. This is most likely due to an irreversible reaction to produce Na{sub 2}SO{sub 3}. This compound appears to be stable at calcination temperatures as high as 200 C. Tests of 40% supported potassium carbonate sorbent and plain support material suggest that some of the activity observed in tests of the supported sorbent may be due to adsorption by the support material rather than to carbonation of the sorbent.},
doi = {10.2172/816480},
url = {https://www.osti.gov/biblio/816480}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2003},
month = {Wed Jan 01 00:00:00 EST 2003}
}