A STUDY OF LIMESTONE CALCINATION WITH CO2 CAPTURE-DECOMPSITION BEHAVIOR IN CO2

摘要：

In the present work, the effects of temperature (up to 1293 K) and residence time on the decomposition behaviors of limestone particles (0.25-0.5 mm) in a CO2 atmosphere were investigated using a continuously operating fluidized bed reactor for CO2 capture. The results show that the rate of limestone decomposition was strongly dependent on the pressure difference between the equilibrium CO2 pressure and CO2 partial pressure in experiments (P*-PCO2) with temperature. Decomposition conversions (CaCO3→CaO) were 73％ at 1193 K and 95％ at 1293 K, with a 70 min average residence time of particles in the bed. A model was proposed to describe the distribution of limestone particles in the fluidized bed reactor with residence time.

关键词： limestone decomposition (calcination) CO2 capture

作者: Yin WANG Shiying LIN Yoshizo SUZUKI

作者单位: National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305 Japan Coal Energy Center, 3-14-10 Mita, Minato-ku, Tokyo 108-0073, Japan

会议类型: 国际会议

会议名称: 第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)

会议地点: 武汉

会议语种:英文

页码: 743-748

在线出版日期: 2007-12-01（万方平台首次上网日期，不代表论文的发表时间）