CLC number: TQ221.2
On-line Access: 2017-03-07
Received: 2016-04-06
Revision Accepted: 2016-07-04
Crosschecked: 2017-02-22
Cited: 0
Clicked: 4302
Xiao-yi Li, Dang-guo Cheng, Feng-qiu Chen, Xiao-li Zhan. Dual bed catalyst system for oxidative dehydrogenation of mixed-butenes: a synergistic mechanism[J]. Journal of Zhejiang University Science A, 2017, 18(3): 225-233.
@article{title="Dual bed catalyst system for oxidative dehydrogenation of mixed-butenes: a synergistic mechanism",
author="Xiao-yi Li, Dang-guo Cheng, Feng-qiu Chen, Xiao-li Zhan",
journal="Journal of Zhejiang University Science A",
volume="18",
number="3",
pages="225-233",
year="2017",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1600295"
}
%0 Journal Article
%T Dual bed catalyst system for oxidative dehydrogenation of mixed-butenes: a synergistic mechanism
%A Xiao-yi Li
%A Dang-guo Cheng
%A Feng-qiu Chen
%A Xiao-li Zhan
%J Journal of Zhejiang University SCIENCE A
%V 18
%N 3
%P 225-233
%@ 1673-565X
%D 2017
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1600295
TY - JOUR
T1 - Dual bed catalyst system for oxidative dehydrogenation of mixed-butenes: a synergistic mechanism
A1 - Xiao-yi Li
A1 - Dang-guo Cheng
A1 - Feng-qiu Chen
A1 - Xiao-li Zhan
J0 - Journal of Zhejiang University Science A
VL - 18
IS - 3
SP - 225
EP - 233
%@ 1673-565X
Y1 - 2017
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1600295
Abstract: oxidative dehydrogenation (ODH) of mono and mixed-butenes to 1,3-butadiene (BD) was conducted using individual and dual bed catalyst systems, consisting of ZnFe2O4, Co9Fe3Bi1Mo12O51 or both. The dual bed catalyst system gave improved catalytic performance. A mechanism based on synergy between the catalysts is proposed to explain the improved overall butene conversion. The proportion of the reactants differed between the catalyst beds in the dual bed system, making better use of the catalytic activity of the second bed. The existence of all butene isomers inhibited isomerization, leading to a higher proportion of ODH reactions and thus improved the conversion of butene and the yield of BD. The packing sequences and the volume ratio of the catalysts in the bed were optimized. The results indicated that the sequence with ZnFe2O4 on top and a catalyst packing ratio of between 4:6 and 6:4 led to better activity.
This manuscript reports on an investigation of a dual catalysts bed system for the Oxidative Dehydrogenation of mixtures of butenes to 1,3 butadiene. The topic is of interest and the amount of work is substantial.
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