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十元环分子筛在甲醇芳构化反应中催化性能的研究

耿蕊 ,  董梅 ,  王浩 ,  牛宪军 ,  樊卫斌 ,  王建国 ,  秦张峰

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引用本文: 耿蕊, 董梅, 王浩, 牛宪军, 樊卫斌, 王建国, 秦张峰. 十元环分子筛在甲醇芳构化反应中催化性能的研究[J]. 燃料化学学报, 2014, 42(9): 1119-1127. shu
Citation:  GENG Rui, DONG Mei, WANG Hao, NIU Xian-jun, FAN Wei-bin, WANG Jian-guo, QIN Zhang-feng. An investigation on the catalytic performance of 10 MR zeolites in methanol aromatization reaction[J]. Journal of Fuel Chemistry and Technology, 2014, 42(9): 1119-1127. shu

十元环分子筛在甲醇芳构化反应中催化性能的研究

    通讯作者: 樊卫斌,E-mail:fanwb@sxicc.ac.cn;董梅,E-mail:mdong@sxicc.ac.cn;Tel:0351-4046736。; 樊卫斌,E-mail:fanwb@sxicc.ac.cn;董梅,E-mail:mdong@sxicc.ac.cn;Tel:0351-4046736。
  • 基金项目:

    国家自然科学基金(21103216,21273264,21273263) (21103216,21273264,21273263)

    国家重点基础研究发展规划(973计划,2011CB201403) (973计划,2011CB201403)

    山西省自然科学基金(2012011005-2)。 (2012011005-2)

摘要: 合成了ZSM-5、ZSM-22、EU-1、MCM-22和ITQ-13具有十元环孔道结构的5种分子筛,研究了分子筛结构、酸性分布等因素对其在甲醇芳构化反应中催化性能的影响。研究表明,不同结构分子筛的形貌、酸性及孔径均存在较大差异,进而影响了其在甲醇制芳烃反应中的催化活性和稳定性。研究的5种分子筛中,ZSM-5表现出最佳的芳构化活性,芳烃收率达34.8％,MCM-22芳烃收率约为21.9%,而其他3种结构的分子筛催化剂基本未表现出甲醇芳构化活性。通过添加具有芳构化性能的Ga物种对ZSM-5和MCM-22进行改性,可显著提升芳烃收率,Ga/ZSM-5上芳烃收率达到40.8%,Ga/MCM-22上芳烃收率可提高到27.1%。另外,采用TG/DTA、GC等方法研究了失活催化剂的积炭情况,发现分子筛结构对积炭量、积炭组成及积炭分布存在显著影响。

English

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  • 收稿日期:  2014-01-17
  • 网络出版日期:  2014-03-05
通讯作者: 陈斌, bchen63@163.com
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