Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
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Investigation on the Relationship between Mass Transfer and Reaction within the Washcoat of Monolith Type Micro-scale Catalytic Combustor

모노리스 타입 마이크로 촉매 연소기의 담층 내부 물질전달 및 반응 관계에 관한 연구

  • Received : 2015.05.15
  • Accepted : 2015.06.18
  • Published : 2015.06.30
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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.

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References

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