Intrinsic oxidation kinetics of sulfite catalyzed by peracetic acid under different water quality and light conditions  

作　　者：WANG LiDong ZHAO Yi LI QiangWei CHEN ZhouYan LIU SongTao MA YongLiang HAO JiMing 

机构地区：[1]School of Environmental Science and Engineering,North China Electric Power University,Baoding 071003,China [2]Department of Environmental Science and Engineering,Tsinghua University,Beijing 100054,China

出　　处：《Science China Chemistry》2009年第1期109-116,共8页中国科学（化学英文版）

基　　金：Supported by the National Basic Research Program of China (Grant No. JK00020);the Doctor Research Fund from North China Electric Power University (Grant No. 200612008);the National High Technology Research and Development Program of China (Grant No. 2007AA061703)

摘　　要：Oxidation of sulfite is an important process in wet flue gas desulfurization.Using highly purified water or distilled water as a reaction medium and a transparent or an opaque intermittent reaction apparatus,the intrinsic oxidation kinetics of sulfite catalyzed by peracetic acid was investigated under four dif-ferent conditions.The reaction order of the reagents and the activation energy were obtained.The re-sults indicate that water quality and light have no obvious effects on the reaction order and activation energy,but have an influence on the reaction rate constant.The mechanism of the intrinsic reaction is proposed.The results derived with this mechanism are in good agreement with the experimental re-sults.Oxidation of sulfite is an important process in wet flue gas desulfurization. Using highly purified water or distilled water as a reaction medium and a transparent or an opaque intermittent reaction apparatus, the intrinsic oxidation kinetics of sulfite catalyzed by peracetic acid was investigated under four different conditions. The reaction order of the reagents and the activation energy were obtained. The results indicate that water quality and light have no obvious effects on the reaction order and activation energy, but have an influence on the reaction rate constant. The mechanism of the intrinsic reaction is proposed. The results derived with this mechanism are in good agreement with the experimental results.

关 键 词：light water CHARACTER peracetic acid CATALYZED oxidation SULFITE KINETICS 

分 类 号：X701[环境科学与工程—环境工程]