| 甲烷丙烷在Mo/HZSM-5上共芳构化过程中的积碳研究 |
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| 引用本文： | 李秀东,李望,沈晓春,楼辉,郑小明. 甲烷丙烷在Mo/HZSM-5上共芳构化过程中的积碳研究[J]. 浙江大学学报(理学版), 2009, 36(4): 419-422. DOI: 10.3785/j.issn.1008-9497.2009.04.013 |
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| 作者姓名： | 李秀东 李望 沈晓春 楼辉 郑小明 |
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| 作者单位： | 浙江大学 催化研究所,浙江 杭州,310028 |
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| 基金项目： | 国家自然科学基金资助项目，国家重点基础研究发展计划资助项目 |
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| 摘 要： | 研究了适当的预处理对缩短或消除Mo／HZSM-5催化剂上甲烷芳构化诱导期的作用．甲烷TPSR、甲烷脉冲反应、TPO、TPH等实验结果表明，芳构化反应后的催化剂至少存在着舍氢和不含氢两类积碳物种，其中含氢的活性积碳的是芳构化反应的关键中间步骤．本文认为由于丙烷比甲烷更容易生成这种活性积碳，这就是丙烷能促进甲烷芳构化的原因．
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| 关 键 词： | 芳构化 诱导期 积碳 |
Carbonaceous deposit during aromatization of CH_4 with C_3H_8 over Mo/HZSM-5 catalyst |
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| LI Xiu-dong,LI Wang,SHEN Xiao-chun,LOU Hui,ZHENG Xiao-ming. Carbonaceous deposit during aromatization of CH_4 with C_3H_8 over Mo/HZSM-5 catalyst[J]. Journal of Zhejiang University(Sciences Edition), 2009, 36(4): 419-422. DOI: 10.3785/j.issn.1008-9497.2009.04.013 |
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| Authors: | LI Xiu-dong LI Wang SHEN Xiao-chun LOU Hui ZHENG Xiao-ming |
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| Affiliation: | Institute of Catalysis;Zhejiang University;Hangzhou 310028;China |
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| Abstract: | The influence of pre-treatment conditions on reducing the induction period of methane aromatization on Mo/HZSM-5 was investigated via methane temperature-programmed surface reaction (TPSR),methane pulse reaction,temperature-programmed oxidation (TPO),temperature-programmed hydrogenation (TPH). It was found that there were at least two kind of carbonaceous species,with or without hydrogen formed on the catalyst during CH4-TPSR. The former may be necessary for benzene formation. Propane which is easily decomp... |
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| Keywords: | aromatization induction period carbonaceous deposit |
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