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ZSM-5分子筛的脱硅改性及加氢改质性能

石冈 ,  林秀英 ,  范煜 ,  鲍晓军

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引用本文: 石冈, 林秀英, 范煜, 鲍晓军. ZSM-5分子筛的脱硅改性及加氢改质性能[J]. 燃料化学学报, 2013, 41(5): 589-600. shu
Citation:  SHI Gang, LIN Xiu-ying, FAN Yu, BAO Xiao-jun. Desilication modification of ZSM-5 zeolite and its catalytic properties in hydro-upgrading[J]. Journal of Fuel Chemistry and Technology, 2013, 41(5): 589-600. shu

ZSM-5分子筛的脱硅改性及加氢改质性能

    通讯作者: 鲍晓军(1963- ), 男, 教授, 博士, 主要从事多相催化剂和多相催化反应工程的基础和应用基础研究, Tel: 010-89734836, Fax: 010-89734979, E-mail: baxj@cup.edu.cn。
  • 基金项目:

    国家重点基础研究发展规划(973计划, 2010CB226900)。 (973计划, 2010CB226900)

摘要: 考察了水热与碱联合处理过程中两者的先后顺序对ZSM-5分子筛酸性和孔结构的影响,并与单独的水热和碱处理进行了比较。结果表明,水热后的碱处理对ZSM-5分子筛具有骨架脱硅、骨架补铝和清除非骨架铝物种三重作用,而碱处理后的水热处理具有骨架脱铝和部分骨架稳定化双重作用。与先水热处理再碱处理相比,先碱处理后的水热处理在优化分子筛酸性和产生介孔方面更加有效。基于水热-碱联合处理的HZSM-5分子筛所制备的催化剂对催化裂化汽油的加氢改质表现出适中的异构化活性、较高的烯烃芳构化活性以及最高的稳定性。

English

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  • 收稿日期:  2013-01-10
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