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Effects of zirconium content on the catalytic performance of BiMoZr x in the oxidative dehydrogenation of 1‐butene to 1,3‐butadiene
Author(s) -
Wan Chao,
Cheng Dangguo,
Chen Fengqiu,
Zhan Xiaoli
Publication year - 2016
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.4572
Subject(s) - catalysis , dehydrogenation , zirconium , molybdate , bismuth , x ray photoelectron spectroscopy , inorganic chemistry , butene , materials science , chemistry , chemical engineering , metallurgy , organic chemistry , ethylene , engineering
BACKGROUND Oxidative dehydrogenation ( ODH ) of 1‐butene has been considered as a potential process for manufacturing 1,3‐butadiene ( BD ). The introduction of metal oxides to pure bismuth molybdate, a promising catalyst for the ODH reaction, can be expected to improve the catalysts performance. In this work, multicomponent bismuth molybdate oxide ( BiMoZr x ) catalysts for ODH of 1‐butene were prepared by a co‐precipitation method with variation of zirconium content (x = 0–0.5), and the influence of zirconium on catalytic performance was investigated.RESULTS The zirconium content has a significant effect on the structure and performance of the catalyst. The conversion of 1‐butene and the BD yield over BiMoZr x catalysts display volcano curves with respect to zirconium content. Among the catalysts tested, BiMoZr 0 .4 exhibits superior activity.CONCLUSION 1‐butene temperature‐programmed re‐oxidation ( TPRO ) and X‐ray photoelectron spectroscopy ( XPS ) characterizations demonstrate that zirconium content is related to the oxygen mobility of BiMoZr x catalysts, and oxygen mobility is a crucial factor determining catalytic performance in the ODH reaction. © 2014 Society of Chemical Industry