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http://dx.doi.org/10.15231/jksc.2015.20.2.046

Investigation on the Relationship between Mass Transfer and Reaction within the Washcoat of Monolith Type Micro-scale Catalytic Combustor  

Lee, Gwang Goo (Kyungil University)
Suzuki, Yuji (The University of Tokyo)
Publication Information
Journal of the Korean Society of Combustion / v.20, no.2, 2015 , pp. 46-53 More about this Journal
Abstract
The relationship between mass transfer and reaction within the washcoat is investigated in a monolith type micro-scale Pt-catalytic combustor. Nondimensionalized balance equation of butane is applied in a simplified washcoat geometry having the shape of slab. Both Thiele modulus and effectiveness factor are considered to compare reaction rate and diffusion rate according to the operation temperature and the diameter of alumina nano-pores. The effect of reaction becomes stronger as the temperature increases, while the effect of diffusion becomes relatively dominant as the diameter of nano-pores increases. From the analysis of butane distribution within the washcoat, design criterion for the thickness of washcoat is discussed.
Keywords
Micro catalytic combustor; Washcoat; Thiele modulus; Effectiveness factor; Design criterion;
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Times Cited By KSCI : 2  (Citation Analysis)
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