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ID 113241
著者
Kato, Yuki Mitsubishi Chemical Corporation
Nitta, Shinya Tokushima University
Shimazu, Sho Tokushima University
Ninomiya, Wataru Mitsubishi Chemical Corporation
キーワード
Oxidative dehydrogenation
Isobutane
Isobutene
MCM-48
Chromium
資料タイプ
学術雑誌論文
抄録
The catalytic performance of MCM-48 was greatly improved by the introduction of a small amount of chromium during the oxidative dehydrogenation of isobutane. Various characterization procedures such as XRD, N2 adsorption–desorption isotherms, TEM, NH3-TPD, XPS, and XAFS were used to identify the role that chromium played in the improvement, and XPS and XAFS results provided the most valuable information. Both measurements revealed that the chromium species existed as Cr6+ inside the framework of MCM-48 before oxidative dehydrogenation, but was reduced to Cr3+ during the reaction. The characteristic pore nature of MCM-48 also contributed to an enhancement of the selectivity to isobutene via the suppression of consecutive oxidation reactions.
掲載誌名
Journal of Chemical Engineering of Japan
ISSN
00219592
cat書誌ID
AA00709658
出版者
The Society of Chemical Engineers, Japan
52
1
開始ページ
99
終了ページ
105
発行日
2019-01-20
権利情報
Copyright © 2019 The Society of Chemical Engineers, Japan
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
著者版
部局
理工学系