Reactions of CaCO3 Sorbent Particles at an O2/CO2 Atmosphere
As the regulation about the emission of the greenhouse gas has become more severe, the O2/CO2 combustion system, which enables the easy CO2 recovery, was introduced as one of the promising combustion system in a power plant industry and the in-furnace desulfurization technique can be adapted to the system due to the high sulfation efficiency. In this study, reactions of CaCO3 particle, which can be used as a sorbent for the in-furnace desulfurization, were investigated in an O2/CO2 atmospheric condition. To determine the size effect of the CaCO3 sorbent particles, three different-sized particles (9, 23, and 40 μm by mean diameter, respectively) were used. In an air atmosphere, calcination was conducted actively in a short residence time as the particle size increased. In an O2/CO2 atmosphere, on the other hands tendency of the calcination was reversed in comparison to the air atmosphere. On the evidence o experiments, the formulas for calcination were suggested for each atmospher condition.
O2/CO2 Combustion In-furnace Desulfurization Calcination Sintering particle size
Seongha Jeong Kang Soo Lee Sang In Keel Sang Soo Kim
Department of Mechanical Engineering,KAIST,335,Gwahangno,Yusong-gu,Daejeon,305- 701,Republic of Kore Environmental Systems Research Division,KIMM,104 Sinseongno,305-343,Daejeon,Republic of Korea
国际会议
西安
英文
1055-1062
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）