| Pt/ZSM-5催化四氯化碳气相加氢脱氯的研究 |
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| 引用本文： | 李鹤,徐成华,冯良荣,李子健,邱发礼.Pt/ZSM-5催化四氯化碳气相加氢脱氯的研究[J].石油化工,2005,34(9):880-884. |
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| 作者姓名： | 李鹤 徐成华 冯良荣 李子健 邱发礼 |
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| 作者单位： | 1. 中国科学院,成都有机化学研究所,四川,成都,610041;中国科学院,研究生院,北京,100039
2. 中国科学院,成都有机化学研究所,四川,成都,610041 |
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| 摘 要： | 采用浸渍法制备了低Pt含量的Pt/ZSM-5催化剂,并采用Fe,Co,N i,Cu,Zn等过渡金属元素对Pt/ZSM-5催化剂进行掺杂,考察了催化剂在四氯化碳(CTC)气相加氢脱氯反应中的催化性能。实验结果表明,掺杂Co可提高Pt/ZSM-5催化剂的初始催化活性(CTC初始转化率可达88%),而掺杂其它过渡金属元素难以提高CTC的转化率,但可改善催化剂的稳定性。400℃下用氢气活化可使失活催化剂再生。根据掺杂元素对产物分布的影响,探讨了Pt/ZSM-5催化剂催化CTC气相加氢脱氯的机理。
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| 关 键 词： | 四氯化碳 气相催化 加氢脱氯 氯仿 四氯乙烯 铂/ZSM-5催化剂 |
| 文章编号： | 1000-8144(2005)09-0880-05 |
| 修稿时间： | 2005年3月16日 |
Vapor -Phase Hydrodechlorination of Carbon Tetrachloride over Pt/ZSM -5 Catalyst |
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| Li He,Xu Chenghua,Feng Liangrong,Li Zijian,QIU Fali.Vapor -Phase Hydrodechlorination of Carbon Tetrachloride over Pt/ZSM -5 Catalyst[J].Petrochemical Technology,2005,34(9):880-884. |
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| Authors: | Li He Xu Chenghua Feng Liangrong Li Zijian QIU Fali |
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| Abstract: | Vapor-phase hydrodechlorination of carbon tetrachloride(CTC)was investigated on Pt/ZSM-5 catalyst with a low Pt content.The catalyst was prepared by impregnation and Pt mass fraction was 0.3%.Effect of doping transition metals,such as Fe,Co,Ni,Cu,Zn,on performances of Pt/ZSM-5 catalysts was also studied.Co-Pt/ZSM-5 showed high initial catalytic activity with CTC conversion of 88%.Doping of Fe,Ni,Cu,Zn didn′t increase catalytic activity of Pt/ZSM-5 catalyst,but improved its stability.Deactivated Pt/ZSM-5 and Co-Pt/ZSM-5 catalysts in CTC hydrodechlorination could be regenerated by treatment with H_2 at(400℃).By investigating the effect of doping of different transition metals to Pt/ZSM-5 catalysts on distribution of products,mechanism of CTC hydrodechlorination was deduced. |
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| Keywords: | carbon tetrachloride vapor-phase catalysis hydrodechlorination chloroform tetrachloroethylene Pt/ZSM-5 catalyst |
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