Liquid-impregnated clay solid sorbents for CO{sub 2} removal from postcombustion gas streams

Journal Article · Mon Jun 15 04:00:00 EDT 2009 · Journal of Environmental Engineering (New York)

DOI:https://doi.org/10.1061/(ASCE)EE.1943-7870.0000003· OSTI ID:21197793

Siriwardane, R; Robinson, C ^[1]

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1. National Energy Technology Laboratory, Morgantown, WV (United States)

A novel liquid-impregnated clay sorbent (R. V. Siriwardane, U.S. Patent No. 6,908,497 B1 (2003)) was developed for carbon dioxide (CO{sub 2}) removal in the temperature range of ambient to 60{sup o}C for both fixed-bed and fluidized-bed reactor applications. The sorbent is regenerable at 80-100 {sup o}C. A 20-cycle test conducted in an atmospheric reactor with simulated flue gas with moisture demonstrated that the sorbent retains its CO{sub 2} sorption capacity with CO{sub 2} removal efficiency of about 99% during the cyclic tests. The sorbents suitable for fluidized-bed reactor operations showed required {delta} CO{sub 2} capacity requirements for sorption of CO{sub 2} at 40 {sup o}C and regeneration at 100{sup o}C. The parameters such as rate of sorption, heat of sorption, minimum fluidization velocities, and attrition resistance data that are necessary for the design of a reactor suitable for capture and regeneration were also determined for the sorbent. A 20-cycle test conducted in the presence of flue-gas pollutant sulfur dioxide - SO{sub 2} (20 parts per million) - indicated that the sorbent performance was not affected by the presence of SO{sub 2}.

• OSTI ID: 21197793
• Journal Information: Journal of Environmental Engineering (New York), Journal Name: Journal of Environmental Engineering (New York) Journal Issue: 6 Vol. 135; ISSN 0733-9372; ISSN JOEEDU
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ADSORBENTS
CAPTURE
CARBON DIOXIDE
CLAYS
FLUE GAS
FLUIDIZED BED REACTORS
PACKED BED
REGENERATION
SORPTION
SORPTIVE PROPERTIES
SULFUR DIOXIDE