Development of Pt-Ni bimetallic catalyst for oxidative reforming of methane with high resistance to hot spot formation

Shigeru Kado, Yuya Mukainakano, Baitao Li, Kimio Kunimori, Keiichi Tomishige

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The catalyst bed temperature during the oxidative steam reforming of methane was investigated by an infrared thermography over γ-Al2O3 supported Pt-Ni bimetallic catalysts prepared by co-impregnation and sequential impregnation methods. It is clearly found that the catalyst bed temperature was strongly dependent on the way of impregnation, and sequentially introduced Pt had a great effect on the inhibition of hot spot formation. The highest temperature was lower than those over both monometallic catalysts of Ni and Pt. The profiles of TPR revealed that the addition of Pt promoted the reduction of Ni, and the structure of Ni during the sequential impregnation was different form that during the co-impregnation. FT-IR spectra of CO adsorption imply that Pt atoms added sequentially exist preferentially on the surface of metal particles. The surface enrichment of Pt is responsible for the effective overlap between the combustion and reforming zone to inhibit the hot spot formation.

Original languageEnglish
Title of host publicationAbstracts of Papers - 232nd American Chemical Society Meeting and Exposition
Volume232
Publication statusPublished - 2006 Dec 1
Externally publishedYes
Event232nd American Chemical Society Meeting and Exposition - San Francisco, CA, United States
Duration: 2006 Sep 102006 Sep 14

Other

Other232nd American Chemical Society Meeting and Exposition
CountryUnited States
CitySan Francisco, CA
Period06/9/1006/9/14

ASJC Scopus subject areas

  • Chemistry(all)

Fingerprint Dive into the research topics of 'Development of Pt-Ni bimetallic catalyst for oxidative reforming of methane with high resistance to hot spot formation'. Together they form a unique fingerprint.

Cite this