Catalytic partial oxidation (CPOX) of liquid fuels is an attractive option for producing a hydrogen-rich gas stream for fuel cell applications. However, the high sulfur content along with aromatic compounds present in liquid fuels may deactivate reforming catalysts. Deactivation of these catalysts by carbon deposition and sulfur poisoning is a key technical challenge. The relationship between catalyst supports and deactivation have been studied here for three catalysts (Rh/Ce0.5Zr0.5O2, Pt/Ce0.5Zr0.5O2, and Pt/Al2O3) in a fixed bed catalytic reactor using a mixture of n-tetradecane, 1-methylnaphthalene, and dibenzothiophene to simulate logistic fuels. Carbon production during CPOX reforming was directly related to olefin formation. Olefins, which are known coke precursors, were observed on the Pt catalysts during CPOX of n-tetradecane with no sulfur (particularly from Pt/Al2O3), but not on Rh/Ce0.5Zr0.5O2. For the Rh/Ce0.5Zr0.5O2, yields of H2 and CO dropped to a stationary level after the introduction of sulfur-containing feed (1000 ppm sulfur) or aromatic-containing feed (5 wt%), however, the catalyst activity was restored after removing the sulfur or aromatics from the feed. For the Pt catalysts, H2 and CO yields dropped continuously over time in the presence of sulfur or aromatics in feed. The superior performance of Rh/Ce0.5Zr0.5O2 can be attributed to the higher oxygen-ion conductivity of the Ce0.5Zr0.5O2 support as well as the activity of the Rh sites.
Skip Nav Destination
ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology
June 19–21, 2006
Irvine, California, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4247-9
PROCEEDINGS PAPER
Support Effects for Pt and Rh-Based Catalysts for Partial Oxidation of n-Tetradecane Available to Purchase
David A. Berry,
David A. Berry
U.S. Department of Energy, Morgantown, WV
Search for other works by this author on:
Dushyant Shekhawat,
Dushyant Shekhawat
U.S. Department of Energy, Morgantown, WV
Search for other works by this author on:
Todd H. Gardner,
Todd H. Gardner
U.S. Department of Energy, Morgantown, WV
Search for other works by this author on:
Maria Salazar,
Maria Salazar
Parsons Project Service, Inc., Morgantown, WV
Search for other works by this author on:
Daniel J. Haynes,
Daniel J. Haynes
Louisiana State University, Baton Rouge, LA
Search for other works by this author on:
James J. Spivey
James J. Spivey
Louisiana State University, Baton Rouge, LA
Search for other works by this author on:
David A. Berry
U.S. Department of Energy, Morgantown, WV
Dushyant Shekhawat
U.S. Department of Energy, Morgantown, WV
Todd H. Gardner
U.S. Department of Energy, Morgantown, WV
Maria Salazar
Parsons Project Service, Inc., Morgantown, WV
Daniel J. Haynes
Louisiana State University, Baton Rouge, LA
James J. Spivey
Louisiana State University, Baton Rouge, LA
Paper No:
FUELCELL2006-97265, pp. 449-452; 4 pages
Published Online:
September 15, 2008
Citation
Berry, DA, Shekhawat, D, Gardner, TH, Salazar, M, Haynes, DJ, & Spivey, JJ. "Support Effects for Pt and Rh-Based Catalysts for Partial Oxidation of n-Tetradecane." Proceedings of the ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2006 Fourth International Conference on Fuel Cell Science, Engineering and Technology, Parts A and B. Irvine, California, USA. June 19–21, 2006. pp. 449-452. ASME. https://doi.org/10.1115/FUELCELL2006-97265
Download citation file:
9
Views
Related Proceedings Papers
Related Articles
Development of a Hybrid Catalytic Combustor
J. Eng. Power (April,1978)
Processing of Raney-Nickel Catalysts for Alkaline Fuel Cell Applications
J. Fuel Cell Sci. Technol (February,2007)
Aerogel-Based PEMFC Catalysts Operating at Room Temperature
J. Fuel Cell Sci. Technol (November,2006)
Related Chapters
Mechanical Behavior of Zircaloy-4 in the Presence of Hydrogen in Solid Solution at Elevated Temperatures
Zirconium in the Nuclear Industry: 20th International Symposium
Discussion of Parameters to Be Monitored
Consensus on Operating Practices for the Sampling and Monitoring of Feedwater and Boiler Water Chemistry in Modern Industrial Boilers (CRTD-81)
Effect of Chromium Content on the On-Cooling Phase Transformations and Induced Prior-β Zr Mechanical Hardening and Failure Mode (in Relation to Enhanced Accident-Tolerant Fuel Chromium-Coated Zirconium-Based Cladding Behavior upon and after High-Temperature Transients)
Zirconium in the Nuclear Industry: 20th International Symposium