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ID 113778
著者
Kato, Yuki Mitsubishi Chemical Corporation
Nitta, Shinya Tokushima University
Oribe, Kenta Tokushima University
Ninomiya, Wataru Mitsubishi Chemical Corporation
キーワード
Oxidative Dehydrogenation
Isobutane
Isobutene
SBA-15
Chromium
Molybdenum
資料タイプ
学術雑誌論文
抄録
In the oxidative dehydrogenation of isobutane to isobutene, selectivity and stability were improved by introducing chromium and molybdenum into SBA-15. The direct synthesis method (DM) was used to introduce these binary elements into SBA-15. Use of the DM resulted in a higher specific surface area of the catalyst and a greater dispersion of chromium and molybdenum species compared with a corresponding binary catalyst prepared using the incipient wetness impregnation method (IM). Selectivity to isobutene was improved, along with a decrease in the selectivities to CO and CO2 with the introduction of greater amounts of molybdenum, which suggests that molybdenum must suppress the tendency of isobutene to over-oxidate to either CO or CO2. The molybdenum species must be in close proximity to the chromium species, which results in the formation of an active Cr-O-Mo site.
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
6
開始ページ
521
終了ページ
527
発行日
2019-06-20
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