新型二氯甲烷催化燃烧催化剂的性能  

Research on New Type methylene chloride Catalytic Combustion Catalyst

作　　者：陈碧芬[1] 刘亚芹[1] 黄海凤[1] 

机构地区：[1]浙江工业大学生物与环境工程学院,浙江杭州310032

出　　处：《化工环保》2006年第4期268-271,共4页Environmental Protection of Chemical Industry

基　　金：浙江省科技厅计划资助项目(2005C33041)。

摘　　要：采用浸渍法制备了陶瓷负载型V2O5／Al2O3和Cr2O3／Al2O3催化剂，考察了两种催化剂对CH2Cl2的催化燃烧性能。实验结果表明，在进气CH2Cl2质量浓度为800—2400mg／m^3时，V2O3／Al2O3催化剂在400℃时可使CH2Cl2去除率达到95％以上，Cr2O3／Al2O3催化剂在340℃时可使CH2Cl2的去除率达到99％以上。Cr2O3／Al2O3催化剂的活性高于V2O3／Al2O3催化剂。催化剂的活性随温度的升高而提高，随进气CH2Cl2质量浓度的增加而降低。100h稳定性实验结果表明，这两种催化剂均具有较好的稳定性。The pottery supported V2O5/Al2O3 catalyst and pottery supported Cr2O3/Al2O3 catalyst were prepared by impregnation method and their catalytic： activities to CH2Cl2 combustion were investigated. The experimental results indicate that when the mass concentration of inlet CH2Ck2 gas is 800 -2 400 mg/m^3 ,the removal rate of CH2Cl2 is over 95% with V2O5/Al2O3 catalyst at 400 ℃ and over 99% with Cr2O3/Al2O3 catalyst at 340 ℃. The catalytic activity of Cr2O3/Al2O3 catalyst is higher than that of V2O5/Al2O3 catalyst. And their catalytic activities increase with the increasing of temperature,but decrease with the increasing of inlet CH2Cl2 mass concentration. The results of 100 h catalyst stability experiment show that both of the two catalysts have good stability.

关 键 词：二氯甲烷 催化燃烧 催化剂 五氧化二钒 三氧化铬 Γ-氧化铝 陶瓷 废气处理 

分 类 号：X511[环境科学与工程—环境工程]