Abstract
A diesel fuel processor has been developed to integrate with a high-temperature polybenzimidazole (PBI) based polymer electrolyte membrane (PEM) fuel cell, to provide power for truck auxiliary power unit (APU) applications. The fuel processor is designed to operate at low temperatures, ranging from 490 to 600°C, and convert ultra low sulfur diesel (ULSD) to C1 (CH4, CO and CO2) compounds without intermediate products. Reforming in this low temperature range is an effective approach to minimizing carbon deposition. It also produces less CO in the product; consequently the CO cleanup component is greatly simplified when the system is integrated with a PBI fuel cell that tolerates some CO. This reduction in system complexity will help lower costs while improving reliability.
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