Sustainable hydrogen from bio-oil - Steam reforming of acetic acid as a model oxygenate

Kazuhiro Takanabe, Ken Ichi Aika, K. Seshan, Leon Lefferts

Research output: Contribution to journalArticlepeer-review

265 Scopus citations

Abstract

Steam reforming of acetic acid over Pt/ZrO 2 catalysts has been investigated. Pt/ZrO 2 catalysts are very active, completely converting acetic acid, and give a hydrogen yield close to thermodynamic equilibrium. The catalyst deactivated by formation of oligomers which block the active sites. The mechanism of both the reaction and the deactivation was studied with kinetic and spectroscopic measurements on Pt/ZrO 2, ZrO 2, and Pt black. It is shown that Pt is essential for steam reforming to proceed. ZrO 2 is needed to activate steam. ZrO 2, on the other hand, is also active for oligomer-precursor formation under the conditions investigated. Results obtained in the study show that steam reforming takes place at the PtZrO 2 boundary and that deactivation occurs when this boundary is blocked by oligomers.

Original languageEnglish (US)
Pages (from-to)101-108
Number of pages8
JournalJournal of Catalysis
Volume227
Issue number1
DOIs
StatePublished - Oct 1 2004

Keywords

  • Acetic acid
  • Bio-oil
  • Hydrogen
  • Mechanism
  • Pt
  • Steam reforming
  • Sustainable
  • ZrO

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Fingerprint

Dive into the research topics of 'Sustainable hydrogen from bio-oil - Steam reforming of acetic acid as a model oxygenate'. Together they form a unique fingerprint.

Cite this