Cyclic Carbonation Properties of CMA as CO2 Sorbent at High Temperatures

Ying Jie Li; Xin Xie; Chang Tian Liu; Sheng Li Niu

doi:10.4028/www.scientific.net/AMR.518-523.655

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Cyclic Carbonation Properties of CMA as CO₂ Sorbent at High Temperatures
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523Cyclic Carbonation Properties of CMA as CO2...

Cyclic Carbonation Properties of CMA as CO₂ Sorbent at High Temperatures

Abstract:

Calcium-based minerals cyclic calcination/carbonation reaction is an effective approach to CO₂ capture for coal-fired power plants. It was proposed that dolomite modified with acetic acid solution, i.e. calcium magnesium acetate (CMA), acted as a new CO₂ sorbent for calcination/carbonation cycles. The carbonation conversions for CMA and dolomite with the number of cycles were experimentally investigated. The cyclic conversion for CMA is much greater than that for dolomite for the carbonation at 650-700 °C. The carbonation conversion for CMA achieves as high as 0.6 after 20 cycles. CMA maintains the great conversion for calcination at 1100 °C. CMA had a better anti-sintering than dolomite. The pore volume and pore area distributions for calcined CMA are superior to those for calcined dolomite.