K-PROMOTED MO/CO- AND MO/NI-CATALYZED FISCHER-TROPSCH SYNTHESIS OF AROMATIC HYDROCARBONS WITH AND WITHOUT A CU WATER GAS SHIFT CATALYST

摘要

With increasing population, economic development and limited supplies of fossil fuels, new approaches are needed to make renewable liquid fuels. The catalytic conversion of biomass-derived synthesis gas (CO + H2) to liquid hydrocarbons is an approach that has been intensely studied for several decades. The major focus in gas-to-liquids (GTL) technology has been Fischer Tropsch (FT) synthesis , which converts synthesis gas into liquid hydrocarbon fuels (Equation 1). Traditionally commercial catalysts used cobalt, iron and ruthenium though a variety of catalysts can be used. Molybdenum, on a zeolite (ZSM-5) support, has shown promise for the conversion of synthesis gas to liquid hydrocarbons as have cobalt and nickel. However these systems can produce a wide range of hydrocarbons (C1-C60) during the reaction.