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甲烷氧化偶联制C_2烃La_2O_3基催化剂的研究
Authors
刘玉达
张鸿斌
+4 more
林国栋
王泉明
苏巧娟
蔡启瑞
Publication date
30 June 1993
Publisher
Abstract
本文的实验结果表明,具有开放型本征构型的La_2O_3对甲烷氧化偶联反应有相当好的活性和选择性,在750℃、原料气空速6.O×10~4ml.g~(-1).h~(-1),CH_4:O_2:N_2=3.7:l.0:9.0(V/V)的反应条件下,氧接近全部转化,甲烷转化率达25.4%,C_2烃选择性为43.6%,添加碱土金属(Ca、Sr、Ba)氧化物或碳酸盐能显著地改善催化剂的性能,在上述反应条件下,60mol%Ba-La_2O_3催化剂的C_2烃选择性达到58%
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Last time updated on 16/06/2016