Summary: The 30th
Annual Spring Symposium of the Michigan Catalysis Society, May 8, 2008, Ann Arbor, MI.
Agile Desulfurizers for Logistic Fuels
and Abdul-Majeed Azad
The University of Toledo, Chemical Engineering Department, Toledo, OH 43606.
The use of logistic fuels such as diesel and jet fuel is an attractive option for
power generation compared to the traditional hydrocarbons (such as gasoline)
for several reasons. Diesel-based logistic fuel (for trucks and locomotives) is
the main artery of transportation in the continental United States as well as
across the globe. However, sulfur content in the logistic fuels poses a great
challenge, as it leads to severe deactivation and poisoning of the reforming
catalysts. The utilization of logistic fuel in high efficiency fuel cells as
hydrogen-rich reformates, therefore, necessitates that sulfur (present as
organosulfur) be either eliminated totally or reduced appreciably so as not to
mitigate the long-term sustained performance of the reforming catalysts.
Besides, SOFC anodes are also quickly poisoned by sulfur present even in trace
amounts (< 2 ppm). Thus, desulfurization becomes an important and integral
aspect of harnessing clean power from abundant logistic fuels. We have
developed a series of novel sulfur sorbents with agile scavengers dispersed