Elucidating the effect of oxides on the zeolite catalyzed alkylation of benzene with 1-dodecene
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Elucidating the effect of oxides on the zeolite catalyzed alkylation of benzene with 1-dodecene
Elucidating the effect of oxides on the zeolite catalyzed alkylation of benzene with 1-dodecene
中国化学工程学报(英文版)2023年56卷第4期 页码:126-135
Affiliations:
1. Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University,Beijing,China,100084
2. Petrochemical Research Institute, PetroChina Company Limited,Beijing,China,100195
3. Henan Energy and Chemical Industry Group Company Limited,Zhengzhou,China,450046
Author bio:
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纸质出版:2023
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Shiyong Xing, Yan Cui, Tiefeng Wang, 等. Elucidating the effect of oxides on the zeolite catalyzed alkylation of benzene with 1-dodecene[J]. 中国化学工程学报(英文版), 2023,56(4):126-135.
Shiyong Xing, Yan Cui, Tiefeng Wang, Jinwei He, Minghan Han. Elucidating the effect of oxides on the zeolite catalyzed alkylation of benzene with 1-dodecene[J]. Chinese Journal of Chemical Engineering, 2023, 56(4): 126-135.
Shiyong Xing, Yan Cui, Tiefeng Wang, 等. Elucidating the effect of oxides on the zeolite catalyzed alkylation of benzene with 1-dodecene[J]. 中国化学工程学报(英文版), 2023,56(4):126-135.DOI:
Shiyong Xing, Yan Cui, Tiefeng Wang, Jinwei He, Minghan Han. Elucidating the effect of oxides on the zeolite catalyzed alkylation of benzene with 1-dodecene[J]. Chinese Journal of Chemical Engineering, 2023, 56(4): 126-135.DOI:
Elucidating the effect of oxides on the zeolite catalyzed alkylation of benzene with 1-dodecene
摘要
Abstract
In the present work
the effect of oxides on the alkylation of benzene with 1-dodecene was comprehensively investigated over MCM-49
n
-heptanol
n
-heptaldehyde and
n
-heptanoic acid were selected as the model oxides herein
and obvious decrease of lifetime could be caused by only trace amount of oxides added in the feedstocks. However
the deactivated catalysts were difficult to be regenerated by extraction with hot benzene. Additionally
coke-burning was also proved to be incapable to regenerate the deactivated catalysts mainly for the dealumination during calcination. Further characterizations complementary with DFT calculations were conducted to demonstrate that the deactivation was mainly due to the firm adsorption of oxides on the acid sites.
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