Wednesday, 2 November 2005 - 9:05 AM
307d

Thermocatalytic Hydrogen Production Via Oxygen-Free Methane Aromatization

Alaa Kababji1, John Wolan1, and Elias Stefanakos2. (1) Chemical Engineering, University of South Florida, 4202 E. Fowler Ave., ENB 118, Tampa, FL 33620, (2) Electrical Engineering, University of South Florida, 4202 E. Fowler Ave., ENB 118, Tampa, FL 33620

Novel bimetallic catalysts prepared by incipient wetness co-impregnation of an H-ZSM-5 support were formulated and tested for the use in the methane non-oxidative aromatization to hydrogen and aromatic species. The ability to generate hydrogen without any greenhouse byproducts from a biomass compatible process is a very attractive technology. An innovative 100% hydrogen-selective custom designed catalytic membrane reactor was utilized. To increase catalyst efficiency and lifetime, α-SiC size 2μm crystallites were added in order to increase thermal distribution for this highly endothermic reaction (600-750°C) shown below.

6CH4→C6H6+9H2 (ΔH=523KJ/mol)

In-situ Fourier transform infrared spectroscopy analysis of the reactants and products as well as X-ray photoelectron spectroscopy of fresh, activated, spent, unpromoted and promoted (with Ru, Pd) Mo/H-ZSM-5 catalysts will be presented. Gas chromatography techniques were used to both qualitatively and quantitatively analyze the hydrogen byproduct. Conversion data will also be presented.


See more of #307 - Catalytic Hydrogen Generation for Fuel Cell Applications I (20006)
See more of Catalysis and Reaction Engineering Division

See more of The 2005 Annual Meeting (Cincinnati, OH)