| 二氧化碳加氢合成异构烃反应机理初探 |
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| 引用本文： | 倪小明,谭猗生,韩怡卓.二氧化碳加氢合成异构烃反应机理初探[J].天然气化工,2006,31(5):8-12. |
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| 作者姓名： | 倪小明 谭猗生 韩怡卓 |
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| 作者单位： | 1. 中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原,030001;中国科学院研究生院,北京,100039
2. 中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原,030001 |
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| 摘 要： | 以Fe-Zn-Zr/HY作为催化剂,CO2和H2为反应物,在340℃、5MPa的条件下,通过一些对比反应对异构烃的合成机理进行了初步的研究和探讨。实验结果表明:(1)催化剂的作用主要来源于Fe-Zn-Zr和HY分子筛两种催化剂的独立作用;(2)甲醇是整个反应的中间产物;(3)CO不是异构烃合成的必须中间产物,CO与CO2加氢合成烃类的途径截然不同;(4)Fe-Zn-Zr和HY都与异构烃的形成有着直接的关系。
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| 关 键 词： | 二氧化碳加氢 异构烃合成 机理 |
| 文章编号： | 1001-9219（2006）05-08-04 |
| 收稿时间： | 2006-04-26 |
| 修稿时间： | 2006-04-26 |
Primary Study on the Mechanism of Carbon Dioxide Hydrogenation to Iso-alkanes |
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| NI Xiao-ming,TAN Yi-sheng,HAN Yi-zhuo.Primary Study on the Mechanism of Carbon Dioxide Hydrogenation to Iso-alkanes[J].Natural Gas Chemical Industry,2006,31(5):8-12. |
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| Authors: | NI Xiao-ming TAN Yi-sheng HAN Yi-zhuo |
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| Affiliation: | 1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan Shanxi 030001, China;2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | The mechanism of iso-alkanes synthesis by the hydrogenation of carbon dioxide over Fe-Zn-Zr/HY composite catalyst at 340℃,5.0MPa was studied.The results indicted that:(1) the function of composite catalyst was the combination of their respective catalysis of Fe-Zn-Zr and HY;(2) the iso-alkanes were formed by the hydrogenation of CO_2 via the methanol;(3) the inter-conversion from CO_2 to CO was not the indispensable process for the iso-alkanes synthesis and the mechanism of hydrogenation of carbon dioxide was completely different to that of carbon monoxide;(4)both Fe-Zn-Zr and HY had direct effects on the synthesis of isoalkanes. |
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| Keywords: | carbon dioxide hydrogenation iso-alkanes synthesis mechanism |
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