Hydrogen from natural gas: part I—autothermal reforming in an integrated fuel processor
| Autor: | Steven G. Calderone, Shabbir Ahmed, Sheldon H. D. Lee, Todd Harvey, Daniel V. Applegate |
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| Rok vydání: | 2005 |
| Předmět: |
Thermal efficiency
Hydrogen Methane reformer Renewable Energy Sustainability and the Environment business.industry Chemistry Energy Engineering and Power Technology chemistry.chemical_element Condensed Matter Physics Methane Steam reforming chemistry.chemical_compound Fuel Technology Catalytic reforming Natural gas Hydrogen fuel enhancement Process engineering business Nuclear chemistry |
| Zdroj: | International Journal of Hydrogen Energy. 30:829-842 |
| ISSN: | 0360-3199 |
| Popis: | A fuel processor, which incorporates a catalytic autothermal reformer (ATR), a sulfur trap, and a water–gas-shift (WGS) bed engineered to thermally integrate the ATR and WGS processes for improved thermal efficiency, was developed and tested with natural gas as a hydrogen generator for fuel cell applications. In this study, the fuel processor was successfully run over 2300 h of continuous operation at 3.1–16.0 kWth input energy capacities. Test results obtained from characterizing the ATR performance show that the reformer achieved over 40% H 2 (dry basis) in the ATR reformate and 96–99.9% methane conversion over the entire test duration. The methane reforming efficiency reached over 90% at 16.0 kWth input energy level (or equivalent to 29 L/min fuel processing rate), but decreased with decreasing fuel processing rate. The oxygen-to-fuel molar ratio and the fuel processing rate were found to be the key operating parameters in determining the ATR bed temperature, the methane conversion, and the methane reforming efficiency. |
| Databáze: | OpenAIRE |
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