| ZSM-5的水热改性及其在合成气经二甲醚制汽油中的应用 |
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| 引用本文： | ZSM的水热改性及其在合成气经二甲醚制汽油中的应用. ZSM-5的水热改性及其在合成气经二甲醚制汽油中的应用[J]. 燃料化学学报, 2013, 41(11): 1349-1355 |
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| 作者姓名： | ZSM的水热改性及其在合成气经二甲醚制汽油中的应用 |
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| 作者单位： | 1. Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China;2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | 中国科学院对外合作重点项目(GJHZ1025);国家重点基础研究发展规划(973计划, 2011CB201502);"十二五"农村领域国家科技计划(2011BAD22B06-01);中国科学院重大装备项目(Y2010022)。 |
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| 摘 要： | 对合成气经二甲醚制汽油两段等压反应系统中的ZSM-5分子筛催化剂进行原位水热处理,研究了不同温度下水蒸气处理ZSM-5分子筛的结构、表面酸性及催化反应性能。XRD、XRF、BET、NH3-TPD 和 TPO等表征手段表明,水热处理温度为400℃时会使ZSM-5分子筛大部分非骨架铝脱除,酸中心数量减少,比表面积增加,提高了催化剂的活性及产物选择性。
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| 关 键 词： | ZSM-5 水热处理 合成气 二甲醚 汽油 |
| 收稿时间： | 2013-03-27 |
Hydrothermal treatment of ZSM-5 and its application in syngas to gasoline via DME |
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| ZHOU Zhen-lei,LI Zhuo,WANG Bo,PENG Wei-cai,LI Jian-qing,WU Jin-hu. Hydrothermal treatment of ZSM-5 and its application in syngas to gasoline via DME[J]. Journal of Fuel Chemistry and Technology, 2013, 41(11): 1349-1355 |
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| Authors: | ZHOU Zhen-lei LI Zhuo WANG Bo PENG Wei-cai LI Jian-qing WU Jin-hu |
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| Abstract: | The effects of in-situ hydrothermal treatment on the ZSM-5 zeolite were studied, and its performance for syngas to gasoline via DME reaction process was dicussed using two-stage equal-pressure reactor system. The texture, surface acidity and catalytic performance of the treated ZSM-5 zeolite at different temperatures were investigated. Physicochemical properties of the zeolite were characterized by XRD, XRF, BET, NH3-TPD and TPO. The results indicated that most of Al was removed from the nonframework of zeolite through appropriate hydrothermal treatment at 400℃. A decrease in the amount of acidic sites and an increase of specific surface area were observed, and accordingly, the catalytic activity of the ZSM-5 zeolite and product selectivity were improved significantly. |
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| Keywords: | ZSM-5 hydrothermal treatment syngas DME gasoline |
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