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Modeling of Micro-Water Gas Shift Reactor Using Integrated Heat Exchange and Reaction Approach

[+] Author Affiliations
Gap-Yong Kim, Jun Ni

University of Michigan, Ann Arbor, MI

J. Rhett Mayor

Powerix Technologies, LLC., Ann Arbor, MI

Paper No. FUELCELL2006-97227, pp. 365-371; 7 pages
doi:10.1115/FUELCELL2006-97227
From:
  • 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
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4247-9 | eISBN: 0-7918-3780-7
  • Copyright © 2006 by ASME

abstract

Conventional reactors are large in size and thus have limitations on heat and mass transfer. To overcome these limitations, microreactors have been introduced. This study discusses the development of an integrated reaction and heat exchange approach to microreactor design that enhances reaction yields by allowing the reactant stream to follow optimal reactant temperature profiles. The study details the formulation of two-dimensional model for the integrated reaction and heat exchange reactor design, and applies these models to a parametric study of microreactor designs for the water gas shift (WGS) reaction. The parametric study investigates the sensitivities of design parameters for both the parallel-flow and counter-flow configurations and contributes to establishing general design guidelines for the micro-WGS reactor. The integrated approach achieved significantly higher catalyst utilization when compared to a conventional adiabatic reactor. The study also showed potentials of miniaturizing the reactor by reducing the wall thickness of the reactor without performance loss.

Copyright © 2006 by ASME
Topics: Heat , Modeling , Water

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