蒸汽活化钙基吸收剂用于干法烟气脱硫的实验研究  

EXPERIMENTAL STUDY OF STEAM REACTIVATION OF CALCIUM-BASED SORBENT FOR DRY FGD PROCESS

作　　者：时黎明[1] 徐旭常[1] 

机构地区：[1]清华大学清洁煤燃烧国家重点实验室,北京100084

出　　处：《工程热物理学报》1999年第2期242-246,共5页Journal of Engineering Thermophysics

摘　　要：本文简化模拟实验了燃煤锅炉省煤器后的干法烟气脱硫方案．在沉降炉上实验研究了蒸汽活化对钙基吸收剂脱硫（４００～８００℃）效果的影响．结果表明，蒸汽活化能显著改善钙基吸收剂的微孔结构，提高其转化率．在４００到６００℃下反应产物以亚硫酸钙为主，７００到８００℃反应产物以硫酸钙为主。Simulating the conditions of Dry FGD process behind the economizer of pulverizedcoal boiler, this paper experimentally investigated the effect of steam reactivation on thereaction characteristics between SO2 and calcium-based sorbent (400 ~ 800°C) on the droptube reactor. The experimental results show that steam reactivation can largely improvethe micropore structure of spent sorbent and increase its conversion ratio. The products ofreaction are mainly calcium sublate from 400°C to 600°C and mainly calcium sulfate from700°C to 800°C.

关 键 词：蒸汽活化 钙基吸收剂 干法 烟气脱硫 煤燃烧 

分 类 号：TQ534.9[化学工程—煤化学工程] X933.9[环境科学与工程—安全科学]