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Propylene 산화반응에서 촉매내 전달 현상의 영향

Effects of Intraparticle Transport in the Catalytic Oxidation of Propylene

HWAHAK KONGHAK, October 1988, 26(5), 509-516(8)
https://doi.org/NONE
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Abstract

Propylene 부분 산화용 tin-antimony oxide계 공업용 촉매에서 촉매내 물질전달 현상이 반응에 미치는 영향을 다공성 매질내의 물질전달에 관한 Dusty-Gas model과 Feng-Stewart model을 이용하여 검토하였다. 본 촉매반응의 경우 촉매내에 multiple solution은 생기지 않았으며, 촉매 내부 전달 현상에 의하여 propylene의 acrolein으로의 선택성은 감소하였다. 위 두 model이 서로 다른 basis를 갖고 있는데 반하여, 기공 크기가 uniform하고 촉매내에서 viscous flow가 없는 경우에는 같은 결과를 보여줌을 알 수 있다.
The influence of internal diffusion on the partial oxidation of propylene on the tin-antimony oxide based catalyst has been studied. For this study, two flux relations in the porous medium (Dusty-Gas model and Feng-Stewart model) have been adopted. In this catalytic reaction system, multiple solution problem has not happened and the internal diffusion decreases the selectivity of propylene to acrolein. The two models differ conceptually, but it has been known that they give the same result for the catalytic reaction system of uniform pore size and no net viscous flow.

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