| Zn/H-ZSM-5催化剂上的二甲醚芳构化反应 |
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| 引用本文： | 方奕文,汤吉,黄晓昌,沈尾彬,宋一兵,孙长勇.Zn/H-ZSM-5催化剂上的二甲醚芳构化反应[J].催化学报,2010,31(3):264-266. |
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| 作者姓名： | 方奕文 汤吉 黄晓昌 沈尾彬 宋一兵 孙长勇 |
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| 作者单位： | 汕头大学化学系,广东汕头,515063 |
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| 基金项目： | 国家自然科学基金(20576023);;广东省科技计划项目(2008B080701032);;汕头大学青年研究基金(YR07002) |
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| 摘 要： | 考察了 H-ZSM-5 和 Zn/H-ZSM-5 催化剂的二甲醚芳构化性能. 结果表明, H-ZSM-5 分子筛催化剂酸性的增强和酸中心的增多有利于二甲醚芳构化. 当在 H-ZSM-5 催化剂中加入 2% Zn 时, 在 360 oC 下反应时总芳烃收率从 50.0% 增加至 66.2%, C8 芳烃收率从 28.6% 增加到 39.0%. 反应温度升高到 480 oC 时, 总芳烃收率增加至 78.0%.
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| 关 键 词： | 二甲醚 芳构化 锌 H-ZSM-5 分子筛 负载型催化剂 |
| 收稿时间： | 2010-03-25 |
Aromatization of Dimethyl Ether over Zn/H-ZSM-5 Catalyst |
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| FANG Yiwen,TANG Ji,HUANG Xiaochang,SHEN Weibin,SONG Yibing,SUN Changyong.Aromatization of Dimethyl Ether over Zn/H-ZSM-5 Catalyst[J].Chinese Journal of Catalysis,2010,31(3):264-266. |
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| Authors: | FANG Yiwen TANG Ji HUANG Xiaochang SHEN Weibin SONG Yibing SUN Changyong |
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| Institution: | Department of Chemistry, Shantou University, Shantou 515063, Guangdong, China |
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| Abstract: | The catalytic behavior of H-ZSM-5 and Zn/H-ZSM-5 for the aromatization of dimethyl ether (DME) was investigated. The increase in the number and strength of acid sites on the H-ZSM-5 zeolite was beneficial for DME aromatization. Aromatization performance was enhanced by loading Zn into H-ZSM-5. The yields of total and C8 aromatics over H-ZSM-5 at 360 oC were 50.0% and 28.6%, respectively, and over Zn/ H-ZSM-5 (Zn 2% in mass) were 66.2% and 39.0%, respectively. At 480 oC, the total aromatics yield increased t... |
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| Keywords: | dimethyl ether aromatization zinc H-ZSM-5 zeolite supported catalyst |
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