Abstract
The pre-reforming of higher hydrocarbon, propane, was performed to generate hydrogen from LPG without carbon deposition on the catalysts. A Ru/Ni/MgAl 2O4 metallic monolith catalyst was employed to minimize the pressure drop over the catalyst bed. The propane pre-reforming reaction conditions for the complete conversion of propane with no carbon formation were identified to be the following: space velocities over 2400 h-1 and temperatures between 400 and 450 °C with a H2O/C1 ratio of 3. The combined pre-reformer and the main reformer system with the Ru/Ni/MgAl2O4 metallic monolith catalyst was employed to test the conversion propane to syngas where the reaction heat was provided by catalytic combustors. Propane was converted in the pre-reformer to 52.5% H 2, 27.0% CH4, 17.5% CO, and 3.0% CO2 with a 331 °C inlet temperature and a 482 °C catalyst outlet temperature. The main steam reforming reactor converted the methane from the pre-reformer with a conversion of higher than 99.0% with a 366 °C inlet temperature and an 824 °C catalyst outlet temperature. With a total of 912 cc of the Ru/Ni/MgAl2O4 metallic monolith catalyst in the main reformer, the H2 production from the propane reached an average of 3.25 Nm3h-1 when the propane was fed at 0.4 Nm 3h-1.
Original language | English |
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Pages (from-to) | 8850-8856 |
Number of pages | 7 |
Journal | International Journal of Hydrogen Energy |
Volume | 36 |
Issue number | 15 |
DOIs | |
Publication status | Published - 2011 Jul |
Keywords
- Catalytic combustor
- Hydrogen production
- Metallic monolith catalyst
- Pilot scale
- Pre-reformer
- Reformer
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology