Table of Contents
Journal of Fuels
Volume 2014 (2014), Article ID 364107, 7 pages
http://dx.doi.org/10.1155/2014/364107
Research Article

Comparison of Two Preparation Methods on Catalytic Activity and Selectivity of Ru-Mo/HZSM5 for Methane Dehydroaromatization

Idaho National Laboratory, Idaho Falls, ID 83415-3632, USA

Received 1 May 2014; Accepted 12 June 2014; Published 2 July 2014

Academic Editor: Marcello De Falco

Copyright © 2014 Lucia M. Petkovic and Daniel M. Ginosar. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Catalytic performance of Mo/HZSM5 and Ru-Mo/HZSM5 catalysts prepared by vaporization-deposition of molybdenum trioxide and impregnation with ammonium heptamolybdate was analyzed in terms of catalyst activity and selectivity, nitrogen physisorption analyses, temperature-programmed oxidation of carbonaceous residues, and temperature-programmed reduction. Vaporization-deposition rendered the catalyst more selective to ethylene and coke than the catalyst prepared by impregnation. This result was assigned to lower interaction of molybdenum carbide with the zeolite acidic sites.