Three different reforming methods for the conversion of natural gas to hydrogen are studied and compared: Steam Reforming (SR), Auto-thermal Reforming (ATR), and Catalytic Partial Oxidation (CPOX). Thermodynamic and kinetic models are developed for the reforming reactors as well as the subsequent reactors needed for CO removal to make the synthesis gas suitable for use in a PEM fuel cell. The systems are optimized to minimize the total volume, and must supply adequate hydrogen to a fuel cell with a 100kW load. The resultant system efficiencies are calculated. The CPOX system is the smallest and exhibits a comparable efficiency to the SR system. The SR system had the best relation between efficiency and volume increase. Optimal temperature profiles within each reactor were found. It was shown that temperature control can significantly reduce reactor volume and increase conversion capabilities.
|Title of host publication||Proceedings of the "Hydrogen and Fuel Cells 2004 Conference"|
|Publication status||Published - 2004|
|Event||Hydrogen and Fuel Cells 2004 Conference - Toronto, Ontario, Canada|
Duration: 25 Sep 2004 → 28 Sep 2004
|Conference||Hydrogen and Fuel Cells 2004 Conference|
|Period||25/09/2004 → 28/09/2004|