Selective Oxidation of Isobutane to Methacrolein by the Combined Oxide Catalysts, Ni2P2O7 for Oxidative Dehydrogenation of Alkanes and Bi-Mo-Oxide

Yoshiaki OBANA; Kazuya ETO; Masami ITO; Qing XIA; Hiroyasu NISHIGUCHI; Tatsumi ISHIHARA; Yusaku TAKITA

doi:10.1627/jpi.45.375

Selective Oxidation of Isobutane to Methacrolein by the Combined Oxide Catalysts, Ni₂P₂O₇ for Oxidative Dehydrogenation of Alkanes and Bi-Mo-Oxide

Yoshiaki OBANA, Kazuya ETO, Masami ITO, Qing XIA, Hiroyasu NISHIGUCHI, Tatsumi ISHIHARA, Yusaku TAKITA

Author information

Keywords: Catalytic oxidation isobutane, Methacrolein formation, Nickel pyrophosphate catalyst, Bismuth molybdenum oxide, Oxide mixture

JOURNAL FREE ACCESS

2002 Volume 45 Issue 6 Pages 375-381

DOI https://doi.org/10.1627/jpi.45.375

Details

Abstract

Direct formation of methacrolein from isobutane was investigated using a combination of the catalyst effective for oxidative dehydrogenation of isobutane, Ni₂P₂O₇, and the catalyst effective for selective oxidation of olefins, Bi₁-Mo₁₂-Fe₁-Co₆-Ni₂-Cs_0.14-Oxide. Methacrolein was formed with the selectivity as high as 65% in a reactor with two catalyst beds in series. A mixed catalyst consisting of a mixture of the powders of both catalysts was effective for isobutene formation, although the conversion was reduced, whereas a mixture of granules was less effective. Addition of water vapor to the reaction system reduced the formation of oxygenates and promoted the formation of isobutene.

Corresponding author

Register with J-STAGE for free!