98 Transition Metal Sulfide Catalytic Materials: 100 Years of Science and Application

Wednesday, November 4, 2009: 8:20 AM
Charolais (Camino Real Hotel)
Russell Chianelli , Material Research and Technology Institute, University of Texas at El Paso, El Paso, TX
Energy for the security and economic health of the United States and materials research for energy solutions has never been more important. Liquid transportation fuels is one area of extreme importance. It is clear that before sustainable fuels for transportation can be made from sustainable sources, hydrocarbon based fuels will continue to be of major importance. North America has an abundant supply, but the petroleum sources are heavier containing more pollutants. The solution to upgrading and using these fuels is partially contained in the catalytic materials science of the Transition Metal Sulfides (TMS). For more than 100 years, the TMS have been mainstays of hydro-processing fuels and upgrading bitumen and coal. Every refinery in the world uses them everyday to remove sulfur and other pollutants from transportation liquid fuels. As environmental regulations increase the need for improved active and selective TMS will continue to grow. This need can only be met through increased understanding and research on the next generation of TMS catalysts. In this report we outline the growth in fundamental studies of structure/function in the TMS and suggest areas where improved understanding is needed. An understanding of the fundamental properties that lead to both the activity of the simple binary sulfides and the mechanism by which two metals (Co + Mo) act together to enhance activity (promotion) has been developed. The results of this work have led to a new generation of highly active and selective catalysts now in commercial development.
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