催化剂对贫煤焦还原NO动力学参数的影响  

Effects of Catalysts on Kinetic Parameters of NO Reduction by the Lean Coal Char

作　　者：钟北京[1] 张怀山[1] 

机构地区：[1]清华大学工程力学系,北京100084

出　　处：《燃烧科学与技术》2003年第2期97-99,共3页Journal of Combustion Science and Technology

基　　金：国家自然科学基金资助项目(59606011).

摘　　要：通过对中国一种贫煤焦还原NO的实验,确定不同条件下该反应的动力学参数及催化剂对这些参数的影响.结果表明,在贫氧条件下(α<1),催化剂对贫煤焦还原NO具有重要的催化作用,可降低贫煤焦与NO还原反应的活化能,增大频率因子,从而提高反应速率和NO的还原率.This paper has established kinetic parameters of a reaction of NO reduction by a Chinese lean coal char in different conditions and studied effects of catalysts on the parameters via experiments.Experimental results show that catalysts have important catalysis to NO reduction by lean coal chars.Catalysts can decrease the active energy,increase frequent factor of the reaction of NO with lean coal char,enhance the reaction rate and improve the efficiency of NO reduction at stoichiometric ratio less than 1.

关 键 词：贫煤焦 催化剂 N0还原 动力学参数 一氧化氮 

分 类 号：TQ520.6[化学工程—煤化学工程]