Patent ID: 9017433
Filing Date: 2015-04-28
Classification: B01J,C01B,H01M,Y02E

Abstract:
1. A pre-processing assembly for processing fuel feedstock for a fuel cell, said pre-processing assembly comprising: a supply unit for supplying the fuel feedstock to the pre-processing assembly, wherein the fuel feedstock includes oxygen and hydrocarbons having higher and lower hydrocarbon content and the hydrocarbons having higher hydrocarbon content include at least one of propylene and propane; a deoxidizing unit for reducing the oxygen in said fuel feedstock; a propane processor unit for reducing propylene and propane in said fuel feedstock to lower hydrocarbons, wherein the propane processor unit outputs a partially processed fuel feedstock with a reduced propylene and propane content and an increased lower hydrocarbon content; and a pre-reforming unit for reducing the higher hydrocarbon content in said partially processed fuel feedstock, wherein the propane processor unit is separate from the pre-reforming unit, and the propane processor unit and the pre-reforming unit are disposed so that the fuel feedstock passes through the propane processor unit and thereafter the partially processed fuel feedstock output from the propane processor unit passes through the pre-reforming bed; and wherein the propane processor unit includes a first catalyst selective toward propane and propylene and comprising a nickel-based carbon resistant catalyst, and the pre-reforming unit includes a pre-reforming catalyst different from the first catalyst, and wherein the deoxidizing unit is downstream from the supply unit, the propane processor unit is downstream from the deoxidizing unit, and the pre-reforming unit is downstream from the propane processor unit.