Comparative study between fluidized bed and fixed bed reactors in methane reforming combined with methane combustion for the internal heat supply under pressurized condition

Keiichi Tomishige*, Yuichi Matsuo, Yusuke Yoshinaga, Yasushi Sekine, Mohammad Asadullah, Kaoru Fujimoto

*この研究の対応する著者

研究成果査読

75 被引用数 (Scopus)

抄録

The effect of catalyst fluidization on the conversion of methane to syngas in methane reforming with CO2 and H2O in the presence of O2 under pressurized conditions was investigated over Ni and Pt catalysts. Methane and CO2 conversion in the fluidized bed reactor was higher than those in the fixed bed reactor over Ni0.15Mg0.85O catalyst under 1.0 MPa. This reactor effect was dependent on the catalyst properties. Conversion levels in the fluidized and fixed bed reactor were almost the same over MgO-supported Ni and Pt catalysts. It is suggested that this phenomenon is related to the catalyst reducibility. On a catalyst with suitable reducibility, the oxidized catalyst can be reduced with the produced syngas and the reforming activity regenerates in the fluidized bed reactor. Although serious carbon deposition was observed on Ni0.15Mg0.85O in the fixed bed reactor, it was inhibited in the fluidized bed reactor.

本文言語English
ページ(範囲)225-238
ページ数14
ジャーナルApplied Catalysis A: General
223
1-2
DOI
出版ステータスPublished - 2002
外部発表はい

ASJC Scopus subject areas

  • 触媒
  • プロセス化学およびプロセス工学

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