277968 Deoxygenation of Biofuel Model Compounds (Ethanol and 2-Methyltetrahydrofuran) On Silica Supported Nickel Phosphide

Wednesday, October 31, 2012
Hall B (Convention Center )
Phuong P. Bui1, Dan Li2 and S. Ted Oyama1, (1)Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, (2)Virginia Polytechnic Institute and State University, Blacksburg, VA

The research contributes to the quest for second generation bio-fuel. Biomass is one of the most promising renewable energy sources for its abundant availability, extremely low sulfur and nitrogen pollutant content, and reduction in greenhouse gases (due to the CO2 consumption of biomass). Second generation biofuels are produced from sustainable feedstock that utilizes non-food crops or inedible waste products from agriculture, forestry, or paper manufacture etc. Oxygen removal is essential in upgrading biomass oil into commercial oil or gasoline. Transition metal phosphide catalysts, especially nickel phosphide, have been studied in hydrotreating applications and have been shown to be excellent catalysts for sulfur and nitrogen removal in petroleum feedstocks. In this study, two components of raw pyrolysis oil (ethanol and 2-methyltetrahydrofuran) were investigated on silica supported nickel phosphide. Ethanol decomposition on nickel phosphide produced mostly ethylene and some acetaldehyde. Both products have significant demands in the chemical industry. Meanwhile, 2-methyltetrahydrofuran reactions on nickel phosphide produced mostly pentane with some 2-pentanone and butane. Contact time study and infrared spectroscopy were carried out to elucidate the reaction pathways of the two model compounds on the supported nickel phosphide.

Ethanol decomposition on Ni2P/SiO2

2-Methyltetrahydrofuran Decomposition on Ni2P/SiO2


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