用于中温烟气脱硫的新型钙基脱硫剂  

NEW CALCIUM-BASED SORBENT USED FOR MEDIUM TEMPERATURE FGD PROCESS

作　　者：侯波[1] 祁海鹰[1] 由长福[1] 张奇[1] 

机构地区：[1]清华大学热能工程研究所,北京100084

出　　处：《工程热物理学报》2004年第1期159-162,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.59906006)

摘　　要：研究了高效钙基脱硫剂的制备原理,在石灰水合反应生成氢氧化钙和提高比表面积两个关键环节上,采用了一系列方法提高钙利用率,获得突破性进展。进一步研究了中温范围内脱硫温度对钙利用率的影响,得到700℃时超过95％的钙利用率,为发展中温干式烟气脱硫工艺开辟了新的道路。The preparation principle of highly efficient calcium-based sorbent has been investigated. A great progress has been made through taking different measures to improve the hydration quality of lime/fly ash mixture and enhance the special surface area of lime particles. Furthermore, study on influence of desulphurization temperature in the medium temperature range on calcium conversion rate has been performed. As a result, the calcium conversion rate at 700℃ has exceeded 95%. The work in this paper will promote the development of the medium temperature FGD process.

关 键 词：粉煤灰 比表面积 水合反应 脱硫剂制备原理 中温干式烟气脱硫 

分 类 号：TK16[动力工程及工程热物理—热能工程]