CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS

Green, David A. ; Nelson, Thomas ; Turk, Brian S. ; Portzer, Jeffrey W. ; Gupta, Raghubir P.

Research Triangle Institute (United States)

关键词: Materials Recovery;    Ceramics;    01 Coal, Lignite, And Peat;    Sodium Carbonates;    Carbon Dioxide;   

DOI  :  10.2172/841299
RP-ID  :  NONE
RP-ID  :  FC26-00NT40923
RP-ID  :  841299

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report describes research conducted between January 1, 2005 and March 31, 2005 on the use of dry regenerable sorbents for removal of carbon dioxide from flue gas. Engineered sorbents composed of sodium carbonate on a ceramic support were tested in a laboratory fluidized bed reactor system and found to be capable of essentially complete removal of carbon dioxide at 60 C in a short residence time. Upon breakthrough the sorbents can be thermally regenerated to recover essentially all of the absorbed carbon dioxide. An optimized supported sorbent tested in a pilot-scale entrained bed absorber retained its reactivity in multicycle tests and experienced no attrition. Removal of >90% of carbon dioxide in simulated flue gas was achieved in an entrained bed reactor.