Steam reforming of liquid hydrocarbons over supported transition metal catalysts without and with potassium addition

Chao Xie, Yongsheng Chen, Yan Li, Xiaoxing Wang, Chunshan Song

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

Abstract

On-board liquid hydrocarbon reforming with the aid of supported transition metal catalysts is attracting considerable attention as it is very promising for providing H2 to fuel cell-powered vehicles. However, the catalyst deactivation due to carbon deposition and sulfur poisoning is a big challenge for its practical applications. In this study the deactivation of Al2O3 supported Rh, Pt, Ru, Pd, and Ni catalysts is investigated through liquid hydrocarbon reforming in the absence and presence sulfur. For the reactions without sulfur, the Rh, Pt, and Ru catalysts exhibited comparable catalytic performance, which were better than the Pd and Ni catalysts. With the presence of sulfur, all the catalysts were severely poisoned by sulfur with remarkably increased carbon deposition except the Rh catalyst. The superior sulfur tolerance of Rh can be mainly attributed to its strong capability in the conversion of sulfur to sulfonate and sulfate. Moreover, K is effective in enhancing the catalytic performance of the Ni catalyst in the reactions with sulfur due to its beneficial effect on the reduction of carbon deposition, whereas only little promotion effect of K is observed for the noble metal catalysts.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
StatePublished - Dec 1 2009
Event238th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Washington, DC, United States
Duration: Aug 16 2009Aug 20 2009

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other238th National Meeting and Exposition of the American Chemical Society, ACS 2009
Country/TerritoryUnited States
CityWashington, DC
Period8/16/098/20/09

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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