Distillate fuels are the fuel of choice for several FC markets. However, reforming distillate fuels is a challenge due to carbon residue and sulfur issues. To overcome these challenges, Altex and Penn State University (PSU) have developed the Distillate Fuel Preprocessor and Reformer (DFPPR) that can reliably transform distillate fuels into a reformate suitable for fuel cells. The success of DFPPR is in its approach, which preprocesses the fuel ahead of reforming. The fuel preprocessor (FPP) includes a fractionator followed by a desulfurizer. FPP removes the fuel sulfur and the majority of its carbon producing compounds and diverts them to a burner, where they are burned to produce heat needed for steam reforming. The clean fuel from the FPP is then converted to a reformate suitable for the specific fuel cell that best fits the application. The presentation will include the performance of different size fractionators, desulfurizers and reformer components and their integration into FPP and DFPPR systems.