摘要
以石灰石为脱硫剂，在热天平中研究了其高温脱硫产物在低温（60～150℃）条件下的增湿脱硫特性，探讨了水活化温度、活化水量和高温脱硫时间对脱硫灰低温增湿脱硫能力的影响．结果表明，在合适的水活化增湿条件下，高温脱硫产物中的残留氧化钙水合生成氢氧化钙的转化率可以达到90％以上，具有较强的潜在再脱硫能力．增湿活化温度越低，高温脱硫时间越短，越有利于低温脱硫反应；随着活化水量的增加，低温脱硫反应的钙利用率先提高后降低，活化水量存在一个最佳值．
Experiments on the desulphurization behaviors with humidification activation of spent limestone sorbent of high temperature sulfation process were completed in a thermogravimetric analyzer at 60- 150 ℃. The effects of hydration temperature, hydration water rate and reaction time of high-temperature sulfation process were obtained. Results show that the conversion ratio of unreacted CaO in the spent sorbent to Ca（OH）2 may be higher than 90% in the optimized hydration condition. The sulfation ratio of the unreacted CaO in the spent sorbent increases with the hydration temperature or the reaction time decreasing. The overmany hydration water reduces the sulfation ratio of the unreacted CaO and there exists an optimal rate.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2008年第10期1779-1784,共6页
Journal of Zhejiang University：Engineering Science
基金
国家“十一五”重点科技支撑资助项目(2006BAA03B01)
关键词
脱硫
水活化
增湿
循环流化床
desulfurization
hydration
humidification
circulating fluidized bed
