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Catalytic Performance of Ferrierite with Different Crystal Grain Sizes during Skeletal Isomerization of 1‐Butene
Author(s) -
Hu Yunfeng,
Xu Chenyu,
Zhang Haiyan,
Wang Yueyuan,
Deng Jun,
Zhang Hongsheng
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700127
Subject(s) - ferrierite , zeolite , isomerization , butene , coke , ethylenediamine , catalysis , grain size , crystal (programming language) , selectivity , chemistry , materials science , chemical engineering , inorganic chemistry , organic chemistry , ethylene , metallurgy , computer science , engineering , programming language
Ferrierite (FER) zeolite with small crystal grain size was successfully prepared by a kind of hydrothermal synthesis with aging procedure using ethylenediamine (EDA) as template. The zeolite was characterized by a series of analyses. Aging procedure decreased the crystal grain sizes and no significant change was found in the ratio of Si/Al and acid sites. Eventually, FER zeolite with small crystal grain size ranging from 150nm to 800nm showed high isobutene selectivity and good stability during skeletal isomerization of 1‐butene. The reaction was divided into two stages because of the change in the conversion of 1‐butene. Coke deposited at reaction stage II primarily caused the deactivation of FER zeolite. FER Zeolite with small crystal grain led to not only a lower rate of coke deposition but also more coke content than FER zeolite with normal crystal grain size.