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ID 113778
Author
Kato, Yuki Mitsubishi Chemical Corporation
Nitta, Shinya Tokushima University
Oribe, Kenta Tokushima University
Ninomiya, Wataru Mitsubishi Chemical Corporation
Keywords
Oxidative Dehydrogenation
Isobutane
Isobutene
SBA-15
Chromium
Molybdenum
Content Type
Journal Article
Description
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.
Journal Title
Journal of Chemical Engineering of Japan
ISSN
00219592
NCID
AA00709658
Publisher
The Society of Chemical Engineers, Japan
Volume
52
Issue
6
Start Page
521
End Page
527
Published Date
2019-06-20
Rights
Copyright © 2019 The Society of Chemical Engineers, Japan
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Author
departments
Science and Technology