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Synthesis of V‐MCM‐41 Catalysts and Their Application in CO 2 ‐Assisted Isobutane Dehydrogenation
Author(s) -
Wang Xiaosheng,
Ji Kehong,
Zhou Guanglin,
Li Qin,
Zhou Hongjun,
Xu Chunming
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201700284
Subject(s) - dehydrogenation , isobutane , vanadium , catalysis , chemistry , inorganic chemistry , photochemistry , organic chemistry
A series of V‐MCM‐41 were in situ synthesized. The textual properties and vanadium species were systematically characterized. The results showed that the catalysts could still maintain a mesoporous structure and high specific surface area. The vanadium species were highly dispersed on the surface, with the coexistence of polymeric vanadium species. Isobutane dehydrogenation was performed by employing CO 2 as a soft oxidant. The results revealed an almost linear relationship between the activity and surface vanadium sites. Isolated vanadium species were more active for isobutane dehydrogenation. The isobutane dehydrogenation reaction in the presence of CO 2 could proceed simultaneously through oxidative dehydrogenation and non‐oxidative dehydrogenation followed by the reverse water gas shift reaction.