Fe-Cu 混合氧化物催化湿式氧化低浓度磷化氢实验研究 - 中南大学学报.PDF

40 6 () Vol.40 No.6 2009 12 Journal of Central South University (Science and Technology) Dec. 2009 Fe-Cu ( 650093) Fe-Cu Fe-Cu-Ce 50 200 mL/min0.5%~3.0%0.8~1.0 g/m3 Fe-Cu 70% 76% Fe-Cu X511 A 1672−7207(2009)06−1505−05 Catalytic wet air oxidation of low concentration phosphine with Fe-Cu mixed oxide YANG Li-na, YI Hong-hong, TANG Xiao-long, NING Ping, WANG Chi (College of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China) Abstract: Catalytic wet air oxidation of low concentration phosphine(PH ) was investigated, and Fe oxide, Cu oxide, 3 Fe-Cu mixed oxide and Fe-Cu-Ce mixed oxide were used as catalysts. The influence of reaction temperature and gas flow rate on purification efficiency was studied. The results show that the purification efficiency of PH3 reaches 70% using Fe-Cu mixed oxide, when reaction temperature is 50 , gas flow rate is 200 mL/min, oxygen (O ) condition is 2 3 0.5%−3.0%, the entrance concentration of PH3 is 0.8−1.0 g/m ; in addition, when Fe-Cu mixed oxide is added with rare-earth cerium, the purification efficiency of PH3 is increased to 76%, and catalyst stability is enhanced. The purification efficiency of PH3 is higher when reaction temperature is higher and gas flow rate is lower. PH3 can