| Fe改性HZSM-5分子筛上甲醇耦合C4烃制低碳烯烃反应性能研究 |
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| 引用本文： | 王振伍,姜桂元,赵震,周新宇,段爱军,刘坚,徐春明,高金森.Fe改性HZSM-5分子筛上甲醇耦合C4烃制低碳烯烃反应性能研究[J].工业催化,2008,16(10):147. |
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| 作者姓名： | 王振伍 姜桂元 赵震 周新宇 段爱军 刘坚 徐春明 高金森 |
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| 作者单位： | 中国石油大学重质油国家重点实验室，北京 102249 |
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| 基金项目： | 中国石油科技风险创新基金，教育部科学技术研究项目，中国石油大学重质油国家重点实验室开放课题 |
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| 摘 要： | 用等体积浸渍法制备Fe改性HZSM-5分子筛催化剂（Fe/HZSM-5）。考察了Fe/HZSM-5在不同温度下对甲醇耦合C4烃制低碳烯烃反应性能的影响，并利用紫外-可见漫反射光谱对Fe/HZSM-5进行了表征。结果表明，在低铁含量条件下，Fe改性HZSM-5分子筛上Fe（Ⅲ）主要以高分散隔离的形式存在于HZSM-5分子筛的表面，Fe改性提高了催化剂上的原料转化率以及乙烯和丙烯选择性，从而获得了较高的乙烯和丙烯总收率。在反应温度为550 ℃时，在Fe（Ⅲ）处理的HZSM-5分子筛上，乙烯和丙烯总收率最高可达42.1%，比未改性的HZSM-5提高了7％。
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| 关 键 词： | 催化化学 甲醇 C4烃类 耦合 低碳烯烃 HZSM-5分子筛 |
Coupling of methanol and C4-hydrocarbons to light olefins over Fe-modified HZSM-5 zeolites |
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| WANG Zhenwu,JIANG Cuiyuan,ZHAO Zhen,ZHOU Xinyu,DUAN Aijun,LIU Jian,XU Chunming,GAO Jinsen.Coupling of methanol and C4-hydrocarbons to light olefins over Fe-modified HZSM-5 zeolites[J].Industrial Catalysis,2008,16(10):147. |
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| Authors: | WANG Zhenwu JIANG Cuiyuan ZHAO Zhen ZHOU Xinyu DUAN Aijun LIU Jian XU Chunming GAO Jinsen |
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| Affiliation: | State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China |
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| Abstract: | Fe modified HZSM-5 zeolites（Fe/HZSM-5）were prepared by incipient wetness impregnation method and their behaviors for coupling of methanol and C4 hydrocarbons to light olefins were investigated at different temperature. The Fe/HZSM-5 zeolites were characterized by UV-Vis DRS. The results indicated that, at lower Fe loadings, Fe ions mainly existed in highly dispersed and isolated state on surface of the HZSM 5 zeolites. Modification with appropriate amount of Fe enhanced the selectivity to light olefins and yield of ethylene and propylene. Maximum yield of ethylene and propylene of 42.1% was obtained at 550 ℃, 7 percentage points higher than that over HZSM-5. |
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| Keywords: | methanol C4 hydrocarbons coupling light olefins HZSM-5 zeolites catalytic chemistry |
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