The 63rd Annual Meeting of Jpn. Petrol. Inst. (The 69th R&D Symposium of JPI)

Presentation information

General presentations Room-A

A01-A03

Tue. May 25, 2021 9:45 AM - 10:30 AM Room-A (online-a)

Chair:Kohsuke Mori(Osaka Univ.)

9:45 AM - 10:00 AM

[A01] Isopentane dehydrogenation over PtSn/MgAl2O4 catalysts in the presence of steam

○Guan Yanyang1, Ukita Ryuichi1, Hirahara Miru1, Ogihara Hitoshi1, Hideki Kurokawa1 (1. Saitama University, Graduate School of Science & Engineering)

Keywords:Isopentane, Dehydrogenation, PtSn Catalyst

Dehydrogenation of isopentane (2-methylbutane) was performed over PtSn/MgAl2O4 catalysts in the presence of steam. First, to optimize the Sn/Pt ratio, the PtSn/MgAl2O4 catalysts having Sn/Pt = 0, 2, 4, 6, and 8 were prepared. Among the prepared five catalysts, the catalyst having PtSn = 4 showed the highest catalytic activity. The major products were isoamylenes (2-methylbutenes), and high selectivity to isoprene was also obtained. The catalysts modified with Sn showed high total selectivity to isoamylenes and isoprene, but deactivation was clearly observed during the dehydrogenation.