Production of Propene Oxide by a Homogeneous Chain Reaction Initiated by Surface Radical Generation

Naoki Mimura; Zhaoxia Song; Susumu Tsubota; Hiromi Yamashita; S. Ted Oyama

doi:10.1380/ejssnt.2006.74

Conference -ISSS-4-

Production of Propene Oxide by a Homogeneous Chain Reaction Initiated by Surface Radical Generation

Naoki Mimura, Zhaoxia Song, Susumu Tsubota, Hiromi Yamashita, S. Ted Oyama

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Keywords: Extended X-ray absorption fine structure (EXAFS), Catalysis, Titanium oxide, Alkenes, Oxygen, Epoxidation, Radical generation

JOURNAL FREE ACCESS

2006 Volume 4 Pages 74-77

DOI https://doi.org/10.1380/ejssnt.2006.74

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Abstract

Effective Ti catalysts were found for the vapor phase synthesis of propylene oxide, one of the most challenging reactions in heterogeneous catalysis. The observation that the reaction was enhanced by the presence of a post-catalytic bed volume indicated that the reaction occurred through a homogeneous chain reaction, likely initiated by surface radical generation. EXAFS analysis of the SiO₂-supported catalysts indicated that active samples had Ti oxide clusters on the support. The catalytic activity was stable for 500-600 min, and indicated a promising catalytic system. [DOI: 10.1380/ejssnt.2006.74]

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