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水热处理过程中Y分子筛的骨架脱铝、补硅及二次孔的形成

覃正兴 申宝剑

化工学报2016,Vol.67Issue(8):3160-3169,10.
化工学报2016,Vol.67Issue(8):3160-3169,10.DOI:10.11949/j.issn.0438-1157.20160352

水热处理过程中Y分子筛的骨架脱铝、补硅及二次孔的形成

Dealumination, silicon reinsertion, and secondary pore formation in steaming of zeolite Y

覃正兴 1申宝剑1

作者信息

  • 1. 中国石油大学 北京 化学工程学院,重质油国家重点实验室,CNPC催化重点实验室,北京 102249
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摘要

Abstract

Zeolite Y is one of the most important solid acids in the field of heterogeneous catalysis in the past, present and even for a long time in the future. The ultra-stable Y zeolites are the most important form for practical applications. The present review briefly summarized the structure changes of Y zeolite framework under steaming environment, including the removal of framework aluminum, the repair of framework vacancies by migrating silicon insertion, the generation of extra-framework aluminum and the formation of mesopores in the volume of zeolite grains. The emphasis of the present review was on the recent experimental and theoretical progresses about steaming dealumination. The necessity to continue conducting in-depth study on the post-synthesis modification of zeolite Y was stressed.

关键词

分子筛/水热/脱铝/传递/介孔

Key words

zeolite/steaming/dealumination/transport/mesopores

分类

能源科技

引用本文复制引用

覃正兴,申宝剑..水热处理过程中Y分子筛的骨架脱铝、补硅及二次孔的形成[J].化工学报,2016,67(8):3160-3169,10.

基金项目

国家重点基础研究发展计划项目(2012CB215001);国家自然科学基金项目(U1462202)。@@@@supported by the National Basic Research Program of China (2012CB215001) and the National Natural Science Foundation of China (U1462202) (2012CB215001)

化工学报

OA北大核心CSCDCSTPCD

0438-1157

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