The reforming of diesel (including biomass-to-liquid diesel and premium diesel) for fuel cell-based auxiliary power units (APUs) has been extensively investigated by many research groups. For instance, Krummrich et al. [13] successfully converted diesel fuel into a hydrogen-rich gas suitable for PEMFC use. Through this demonstration and other research undertaken in the project's first phase, a sturdy foundation has been established from which this technology may be further developed. Wang et al.