The effect of simultaneous heat and mass transfer on the rate of a heterogeneous catalytic reaction has been studied in the case where the reaction rate may be regarded as concentration independent. Approximate analytic solutions of transport equations for catalyst particles of slab or cylindrical s
Non-isothermal chemical reaction in porous catalysts
โ Scribed by E.E. Petersen
- Publisher
- Elsevier Science
- Year
- 1962
- Tongue
- English
- Weight
- 714 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0009-2509
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โฆ Synopsis
A method of analysis is presented to obtain the asymptotic form of the conservation equations used to describe non-isothermal chemical reaction in porous catalysts. The equations for a system involving the general simple chemical reaction contain several parameters, among which is a generalized form of the Thiele parameter, h. The other parameters contain terms related to the thermal effects of the reaction, the transport properties, and the functional form of the rate expression. The solutions presented which are asymptotic in /I have the advantage in most cases of indicating how the parameters influence the magnitude of the effectiveness factor and its dependence on h. The useful range of the solution is for valuesof h > 3.
๐ SIMILAR VOLUMES
Exact (numencal) and approxunate semi-analytical solution procedures are developed to mvestlgate the problem of multlcomponent dlffuslon accompamed by multiple reactions m porous catalyst pellets Examples are presented to illustrate the apphcatlon of the proposed procedures and to compare exact and