Abstract
The stability and sulfur tolerance of Pt/CeO2/Al2O3 catalyst in steam reforming (SR) of retail gasoline was studied. SR of various typical model components, i.e., toluene, n-heptane, iso-octene, and cyclohexane, in gasoline with or without sulfur was performed. Pt/CeO2/Al2O3 catalyst were characterized to reveal the difference in SR of retail gasoline and iso-octane. In the absence of sulfur, PVCeO2/Al2O3 catalyst exhibited good activity and stability in SR of the said gasoline model components. In the presence of 300 μg/g sulfur, conversions of toluene and cyclohexane decreased significantly. Although initial conversion of 1-octene reduced only slightly but the steadiness of reaction declined. Sulfur imposed no influence on catalyst performance in n-heptane SR. Deactivation of the catalyst in toluene SR, iso-octene, and cyclohexane with sulfur was due to the destroy of Pt?CeO2 bond, which accelerated surface carbon deposition.
| Original language | English |
|---|---|
| Pages (from-to) | 662-666 |
| Number of pages | 5 |
| Journal | Petrochemical Technology |
| Volume | 37 |
| Issue number | 7 |
| State | Published - 15 Jul 2008 |
Keywords
- Catalyst
- Cerium oxide
- Gasoline
- Hydrogen production
- Platinum
- Steam reforming
- Sulfur tolerance
