| 复合模板剂制备片状SAPO-34分子筛及催化MTO反应 |
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| 引用本文： | 石华,耿玉侠,马国栋,钱震,王海国,程庆彦.复合模板剂制备片状SAPO-34分子筛及催化MTO反应[J].化学工业与工程,2015,32(5):109-112. |
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| 作者姓名： | 石华 耿玉侠 马国栋 钱震 王海国 程庆彦 |
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| 作者单位： | 1. 中国天辰工程有限公司, 天津 300410;
2. 河北工业大学, 天津 300130 |
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| 摘 要： | 采用三乙胺为主模板剂、双端氨基聚乙二醇800为辅助模板剂制备出片状SAPO-34分子筛,使用XRD、SEM、BET及NH3-TPD对样品进行表征;并考察在甲醇制烯烃反应中的催化性能。结果表明,所合成的片状SAPO-34分子筛具有较大的比表面积(720 m2/g)和适中的酸性。在催化甲醇制烯烃反应中表现出较长的寿命,甲醇转化率达到99%以上,乙烯和丙烯(双烯)选择性达到80%以上。
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| 关 键 词： | SAPO-34分子筛 棱片状 复合模板剂 甲醇制烯烃反应 |
Preparation of Lamellate SAPO-34 Molecular Sieves with Composite Templates for MTO Reaction |
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| Affiliation: | 1. China Tianchen Engineering Corporation, Tianjin 300400, China;
2. Hebei University of Technology, Tianjin 300401, China |
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| Abstract: | The pseudocubic plate-like SAPO-34 molecular sieves were synthesized using composite templates, and were characterized by XRD, SEM, BET and NH3-TPD. The as-synthesized SAPO-34 zeolites displayed BET surface areas up to 720 m2/g, moderate acidity. The activities of catalysts in the process of methanol to olefin (MTO) by using the obtained SAPO-34 molecular sieves were investigated. The catalysts exhibited relative longer life span, methanol conversion was over 99% and the total selectivity to ethylene and propylene could be over 80%. |
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| Keywords: | SAPO-34 molecular sieves pseudocubic plate-like composite templates methanol to olefin |
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