FEASIBILITY OF LARGE-SCALE OCEAN CO2 SEQUESTRATION

[摘要] This report describes research conducted between July 1, 2003 and September 30, 2003 on the use of dry regenerable sorbents for concentration of carbon dioxide from flue gas. Based on 5-cycle fixed bed tests of grade 3 sodium bicarbonate, calcination in carbon dioxide at 160 C does not affect the activity or capacity of the sorbent in subsequent carbonation cycles. Increasing the calcination temperature to 200 C does have an adverse impact on sorbent performance. RTI produced a supported sorbent with a nominal composition of 40% sodium carbonate. While this material has good attrition resistance, the activity, as determined by thermogravimetry, fixed bed testing and analysis of physical properties is insufficient for use as a carbon dioxide sorbent.

[发布日期] 2003-12-16 [发布机构] Research Triangle Institute (United States)

[关键词] Calcination;Carbon Dioxide;36 Materials Science;Sorptive Properties;Materials Testing