| 负载型ZSM-5分子筛催化剂再生方法研究 |
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| 引用本文： | 张晓静,刘雁,陈永生.负载型ZSM-5分子筛催化剂再生方法研究[J].工业催化,2008,16(6):23-26. |
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| 作者姓名： | 张晓静 刘雁 陈永生 |
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| 作者单位： | 1.河北工业大学化工学院，天津 300130； 2.天津化工研究设计院，天津 300131 |
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| 摘 要： | 吡啶合成中所用的催化剂为负载铅ZSM-5分子筛（Pb-ZSM-5），活性很好，但反应过程中催化剂很易发生积炭失活。通过对O2烧炭再生、水蒸汽再生和甲醇再生处理的催化剂进行评价以及进行BET、XRD和TPD 表征，结果表明，甲醇再生方法效果明显，提高了催化剂的寿命。催化剂再生过程要抑制“飞温”现象发生。
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| 关 键 词： | 催化化学 分子筛催化剂 吡啶合成 结焦 再生 |
| 文章编号： | 1008-1143(2006)06-0023-04 |
| 修稿时间： | 2007年12月14 |
Study on regeneration of supported ZSM-5 zeolite catalysts |
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| ZHANG Xiaojing,LIU Yan,CHEN Yongsheng.Study on regeneration of supported ZSM-5 zeolite catalysts[J].Industrial Catalysis,2008,16(6):23-26. |
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| Authors: | ZHANG Xiaojing LIU Yan CHEN Yongsheng |
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| Affiliation: | 1. School of Chemical Engineering and Technology，Hebei University of Technology，Tianjin 300130, China；2.Tianjin Research & Design Institute of Chemical Industry, Tianjin 300131, China |
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| Abstract: | Methods for regeneration of commercial supported ZSM-5 zeolite catalysts, including coke burning (controlled oxidation), regeneration by steam and regeneration by methanol, were reviewed. The regeneration behaviors of Pb-ZSM-5 zeolite catalyst for synthesis of pyridine bases were investigated and characterized by BET, XRD and TPD. The results indicated that regeneration by methanol remarkably prolonged life cycle of the catalyst. Measures should be taken to prevent temperature jump during the regeneration. |
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| Keywords: | zeolite catalyst pyridine synthesis coke formation regeneration catalytic chemistry |
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