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    Asymmetric temperature and composition profiles in catalyst particles

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    Author
    Martel, Ezio Antonio
    Date
    1969
    Advisor
    Jackson, Roy
    Degree
    Master of Science
    Abstract
    In the many published discussions of chemical reactions accompanied by heat conduction and diffusion in catalyst particles, it has been tacitly assumed that the temperature and concentration profiles have the symmetry of the particle. It is the main purpose of this work to show that this is not necessarily the case, and hence, that the extensive literature on multiple solutions has uncovered only a fraction of all possible steady states. A slab has been used as a model for the catalyst particle? diffusive resistances to heat and mass flux in its interior and Newtonian resistances to heat and mass transfer at its faces has been considered. For a single first order exothermic reaction with Arrhenius temperature dependence and constant thermal and mass diffusivities, asymmetric profiles for temperature and composition have been obtained, thus verifying the above contention.
    Citation
    Martel, Ezio Antonio. "Asymmetric temperature and composition profiles in catalyst particles." (1969) Master’s Thesis, Rice University. https://hdl.handle.net/1911/89713.
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    • Rice University Electronic Theses and Dissertations [13409]

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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map