环境工程学报2018，Vol.12Issue(1)：127-133,7.DOI:10.12030/j.cjee.201705200
金属改性Pd/Al2O3对煤矿乏风催化氧化性能的影响
Effect of Pd/Al2O3 modification by metal on performance of ventilation air methane catalytic oxidation
摘要
Abstract
Pd/Al2O3 catalysts deposited on cordierite-based ceramic honeycomb were prepared and tested for catalytic oxidation of ventilation air methane by addition of different metal(M:Ce,Ni,Ba,Mg,Fe,La and Mn)oxides.The results show crystalline difference among M-Pd/Al2O3 catalysts doped by various metal oxides in which Ni and Mg inhibit the transformation of Al2O3 towards α-Al2O3.The formation of NiAl2O4 and MgAl2O4 by addition of Ni and Mg effectively improved the activity at lower temperature and the thermal stability of catalysts.PdO2 has better catalytic activity than PdO.The addition of Ni and Mg could sustain more Pd in the phase of PdO2,suppress PdO particles aggregation and promote the distribution of Pd.The Pd/Al2O3 catalysts modified by Ni and Mg oxides may have promising prospects in VAM catalytic combustion.关键词
煤矿乏风/蜂窝陶瓷/Pd/Al2O3/催化氧化Key words
ventilation air methane/ceramic honeycomb/Pd/Al2O3/catalytic oxidation分类
资源环境引用本文复制引用
刘钰琛,张军营,赵永椿,郑楚光..金属改性Pd/Al2O3对煤矿乏风催化氧化性能的影响[J].环境工程学报,2018,12(1):127-133,7.基金项目
国家自然科学基金资助项目(41672148) （41672148）
