Steam reforming of toluene as model of tar compound over Mo catalysts derived from hydrotalcites |
| |
| Authors: | Gheorghiţa Mitran Daniel G Mieritz Dong-Kyun Seo |
| |
| Institution: | 1. Laboratory of Chemical Technology and Catalysis, Department of Organic Chemistry, Biochemistry & Catalysis, Faculty of Chemistry, University of Bucharest, 4-12, Blv. Regina Elisabeta, 030018 Bucharest, Romania;2. School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA |
| |
| 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. |
| |
| Keywords: | Corresponding authors Molybdenum hydrotalcite Steam reforming Toluene Hydrogen production |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
