活性矾土吸收高温烟气中二氧化硫机理研究  

REMOVAL OF SULFUR DIOXIDE FROM HOT FLUE GAS BY ACTIVE BAUXITE

作　　者：汉春利[1] 张军[1] 颜峰[1] 顾璠[1] 余刚[1] 刘坤磊[1] 徐益谦[1] 

机构地区：[1]东南大学洁净煤发电及燃烧技术教育部重点实验室,江苏南京210096

出　　处：《工程热物理学报》2002年第6期767-769,共3页Journal of Engineering Thermophysics

基　　金：国家重点基础研究专项经费资助项目(No.G1999022209)

摘　　要：活性矾土对高温烟气中二氧化硫具有显著的脱除效果。本文利用模拟高温烟气对此进行了研究,结论为贫氧高温时,活性矾土主要依靠吸附对二氧化硫进行脱除,且较低二氧化硫浓度（500 ml/m3）及较高温度（800℃）下,活性矾土吸收二氧化硫效果明显。本文同时对吸附参数进行了计算。Active bauxite has been found suitable for sulfur dioxide (?02) removal from hot flue gas in the coal combustion system. The experiments under different temperature (700癈, 800癈) and S?2 concentration (500 ml/m3, 3000 ml/m3) have been done here. The conclusion is that the main mechanism of S?2 removal with active bauxite is absorption, and higher absorption ratio can be gotten under lower S?2 concentration and higher temperature. The absorption coefficient and desorption coefficient are also calculated, and the results reveal they can get larger value as the temperature is higher under 500 ml/m3 SO2 concentration, while there is reverse trend under 3000 ml/m3.

关 键 词：活性矾土 二氧化硫 吸附 高温烟气 脱硫 

分 类 号：X701.3[环境科学与工程—环境工程]