Study on isobutane dehydrogenation catalyzed by Pt-In supported on hollow microsphere alumina

化学工业与工程

Chemcial Industry and Engineering

2022, Vol. 39

Issue (4) :30-38 DOI: 10.13353/j.issn.1004.9533.20210382

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Study on isobutane dehydrogenation catalyzed by Pt-In supported on hollow microsphere alumina

WANG Jiameng, LIU Fanji, SONG Zhen, HAN Mingxun, ZHANG Xiqing, LI Xiangxiang, ZHANG Lihong

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China

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Abstract In view of the problems of easy sintering and carbon deposition in isobutane dehydrogenation catalyst, two kinds of different alumina supports prepared by hydrothermal method were developed, which were used as the support of Pt-In catalysts for isobutane dehydrogenation. The effects of the catalytic behavior on the dehydrogenation of isobutane were studied. The physicochemical properties of the catalysts were investigated by XRD, SEM, TEM, NH₃-TPD, XPS, TG-DTA and low temperature N₂ adsorption-desorption. The results show that the porous hollow microsphere alumina-supported Pt-In catalyst constructed from nanosheets has smaller Pt nanoparticles, low surface area, strong Pt-In interaction, high In³⁺/In⁰ ratio and lack of strong acid sites, thereby achieving excellent isobutane dehydrogenation performance, the selectivity and yield of isobutene are as high as 93.5% and 40.3%, and the isobutane conversion can be stabilized at 43.0%. And the metal particles after reaction have no agglomeration and sintering phenomenon, showing excellent sintering and carbon deposition resistance.

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	WANG Jiameng
	LIU Fanji
	SONG Zhen
	HAN Mingxun
	ZHANG Xiqing
	LI Xiangxiang
	ZHANG Lihong

Keywords： isobutane dehydrogenation alumina Pt-In catalyst anti-sintering anti-carbon deposition

Received 2021-06-18;

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WANG Jiameng, LIU Fanji, SONG Zhen, HAN Mingxun, ZHANG Xiqing, LI Xiangxiang, ZHANG Lihong.Study on isobutane dehydrogenation catalyzed by Pt-In supported on hollow microsphere alumina[J] Chemcial Industry and Engineering, 2022,V39(4): 30-38

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