Steam reforming of toluene as model of tar compound over Mo catalysts derived from hydrotalcites

Gheorghiţa Mitran, Daniel G. Mieritz, Dong Kyun Seo

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

This study evaluated the catalytic activity of Mo catalysts derived from hydrotalcite-like compounds for steam reforming of toluene as a model compound for tar. The catalysts with 1.5, 3 and 4.5 Mo loadings (wt%), denoted as Mo1.5MgAl, Mo3MgAl and Mo4.5MgAl respectively, were prepared by coprecipitation and characterized by BET, XRD, SEM, TEM, FT-IR and UV–VIS. The results showed that toluene conversion increased with increasing molybdenum content. The hydrogen amount depended on two factors: the presence of molybdate species on the surface and the presence of aluminum cations in tetrahedral sites (Mo3MgAl), with molybdenum influence being more pronounced. The H2/CO ratio decreased at increasing temperature while, the H2/CO2 ratio increased proportionally with temperature. Mo1.5MgAl catalyst was more selective for CO2 and H2, while, Mo3MgAl and Mo4.5MgAl were more selective for CO and H2.

Original languageEnglish (US)
Pages (from-to)916-924
Number of pages9
JournalJournal of Saudi Chemical Society
Volume23
Issue number7
DOIs
StatePublished - Nov 2019

Keywords

  • Hydrogen production
  • Molybdenum hydrotalcite
  • Steam reforming
  • Toluene

ASJC Scopus subject areas

  • Chemistry(all)

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