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IMPROVEMENT STEAM METHANE REFORMING REACTION OVER A CATALYST SURFACE USING A METAL FOAM SUPPORT

DOI: 10.1615/ICHMT.2014.IntSympConvHeatMassTransf.930
pages 1243-1258

Abdelhakim Settar
University of Science and Technology − HouariBoumediene LTPMP / Faculte de Génie mecanique et Genie des Procedes, BP 32 El Alia 16111 Bab Ezzouar Algiers, Algeria; Institut IRTES-M3M, EA 7274, UTBM, site de Sevenans, 90010 Belfort cedex, France

Rachid Nebbali
Laboratoire de Transports Polyphasique et Milieux Poreux, FGMGP, USTHB, BP 32 El Alia 16111 Algiers, Algeria

Brahim Madani
Laboratory of Multiphase Transport and Porous Media (LTPMP), Faculty of Mechanical and Process Engineering (FGMGP)/USTHB, BP. 32, El Alia, Algiers, Algeria

Said Abboudi
Laboratoire Interdisciplinaire Carnot de Bourgogne, ICB UMR 6303 CNRS, Université Bourgogne Franche Comté (UBFC), UTBM, site de Sévenans 90010 Belfort cedex, France

Аннотация

The present work consists in a steam methane reaction (SMR) modeling in catalytic wall reactor which consists in a rectangular channel including a metal foam support over a catalyst layer. The kinetics reaction mechanism was characterized by a general expression of rate reaction which obtained by experiment using a nickel-based catalyst supported on a metal plate in the flat channel. Metal foam support was inserted to fill the catalyst region in the studied channel, which is crossed by a power-law fluid. The modified Brinkman−Forchheimer extended Darcy model for powerlaw fluids is used in the porous layer while the Navier−Stokes equation are employed in the clear region of the channel. The performance of the foam support is compared with a smooth channel for a number of operating conditions pertinent to the SMR system. The results include reaction and conversion rates of species on the catalytic surface, temperature and mass fraction profiles. It is demonstrated that such materials can bring a significant enhancement for hydrogen production, heat and mass transfer processes.

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