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    Periodic operation of a catalytic nitric oxide converter

    Author
    Benítez, Jaime
    View/Open
    178048_thesis.pdf (47.34Mb)
    Other Contributors
    Wotzak, Gregory P.; Shuster, William W., 1919-; Shade, Ray W.; Lashmet, Peter K.;
    Date Issued
    1976-12
    Subject
    Chemical and environmental engineering
    Degree
    PhD;
    Terms of Use
    This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.;
    Metadata
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    URI
    https://hdl.handle.net/20.500.13015/1901
    Abstract
    Rifects of transient operation on the performance of a tubular heterogeneous catalytic reactor were studied both experimentally and theoretically. The reaction system considered was the reduction of nitric oxide by hydrogen over Girdler G-SO catalyst.; Mathematical simulations of the reaction system included both equilibrium and non-equilibrium modes of adsorption-desorption on the catalytic surface. Numerical solutions of pertinent system equations by both quasilinearization and orthogonal collocation techniques agreed with experimental results by predicting a significant increase in NH₃ production as well as very small changes in total NO conversion for transient relative to steady-state operation.; For transient runs, NO and H₂ entrance concentrations were varied sinusoidally with average concentrations equal to those used for steady-state experiments. When transient results were compared with those from steady-state operation, a definite increase in NH₃ relative to N₂ production was observed. No significant changes in total NO conversion were measured for transient operation.; The packed, tubular reactor was operated isothermally at approximately 400°C with a constant total flow rate. For steady-state runs the reactor feed concentrations were set at 5 mole percent of both NO and H₂ in helium. Nitric oxide conversions and product selectivity were determined By absorptionin a Mg(Cℓ0₄)₂ trap as well as chromatographic analysis.;
    Description
    December 1976; School of Engineering
    Department
    Dept. of Chemical and Biological Engineering;
    Publisher
    Rensselaer Polytechnic Institute, Troy, NY
    Relationships
    Rensselaer Theses and Dissertations Online Collection;
    Access
    Restricted to current Rensselaer faculty, staff and students. Access inquiries may be directed to the Rensselaer Libraries.;
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