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공업화학 촉매 / 반응공학 : Zinc Titanate 의 황화반응 특성 및 미반응핵 모델에 의한 반응속도
나재익(Jae Ik Na),박소진(So Jin Park),위영호(Young Ho Wi),이창근(Chang Keun Yi),이태진(Tae Jin Lee) 한국화학공학회 1999 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.37 No.4
The sulfidation reaction between H₂S and a desulfurization sorbent composed of 1.5 ZnO: 1.0 TiO₂ can be described by the unreacted core model in which the global reaction rate is controlled by mass transfer, product layer diffusion and chemical reaction resistance. But at a low temperature like below 600℃, sulfidation reaction can be described by the special case of the unreacted core model which assumes that the global reaction rate is controlled only by the chemical reaction resistance. In this work, the reaction rate constants were determined by using this special case of unreacted core model and apparent activation energy was calculated by the Arrhenius equation. Apparent activation energies were 9,010 ㎈/㏖(ZT01) and 10,350 ㎈/㏖ (ZT02).