摘要
在加热过程中,应用一种新型的快速加热装置——铂膜反应器,及时准确地获得样品质量和颗粒温度,来研究石灰石的煅烧分解,并对石灰石加热速率高达750℃/s下的分解反应特性,及其对分解后产生的氧化钙吸收CO2和脱硫的化学反应特性进行了研究.实验表明,在初始加热阶段,高升温速率明显阻碍了煅烧分解的进行,这对分解后的CaO吸收CO2的效果影响不大.当加热速率升高时,石灰石分解后产生的CaO吸收CO2和脱硫过程中,钙利用率显著下降.
During the rapid heating for limestone calcination, a new platinum-membrane reactor （PMR） , which accurately weighs the sample and acquires temperature of particles, was used. Maximum heating rate of 750 ℃/s was implemented to investigate calcination of limestone and its effect on carbonation and desulphurization reaction of calcium oxide calcined from limestone. The higher heating rate during the initial heating, the lower decomposition of limestone, but the carbonation of CaO calcined is almost unchanged. Calcium utilization rate markedly declines during both carbonation and desulphurization of CaO calcined in the rapid heating.
出处
《燃烧科学与技术》
EI
CAS
CSCD
北大核心
2007年第1期29-34,共6页
Journal of Combustion Science and Technology
基金
国家自然科学基金资助项目(50306026)
广州市科技计划资助项目(2006J1-C0421)
中国科学院广州能源研究所所长创新基金资助项目
关键词
快速加热
化学循环反应
二氧化碳
rapid heating
chemical looping reaction
carbon dioxide
