The effect of increasing fuel-sulfur on ATR performance was examined and experimental results will be discussed. Sulfur levels in the liquid fuel were increased stepwise from 4 to 500 ppmw. At each level, the ATR was operated for 50 hours and the reformate analyzed for H2, CO, higher HC's as well as H2S and COS. The entire reformate was also chilled to trap condensable products. The separated aqueous and hydrocarbon layers were further analyzed for hydrocarbon content. The study clarified issues surrounding fuel-sulfur and illustrated a viable approach for reformation of higher sulfur logistical fuels (e.g. JP-8). Use of JP-8 with 400 ppmw naturally occurring sulfur was also examined. The data was compared with that from doped fuel. Detailed analyses of the catalyst and sulfur trap were conducted after the test and will also be presented. This sulfur tolerance information provides a measure of the performance that can be expected under realistic conditions with readily available sorbents.
This information will be required in designing reformation systems for practical fuels and for establishing sulfur cleanup approaches.