• 关键词：二氧化硫  活性炭  脱硫  催化氧化  动力学

• 基金项目：

• 程振民
• 华东理工大学联合化学反应工程研究所, 上海 200237

• 蒋正兴
• 华东理工大学联合化学反应工程研究所, 上海 200237

• 袁渭康
• 华东理工大学联合化学反应工程研究所, 上海 200237

• 摘要：通过测定不同时间活性炭上的SO₃蓄积量，以Langmuir Hinshelwood方法进行了动力学方程的推导，发现整个过程可分为具有不同反应机理的两个阶段。在SO₃蓄积量小的情况下，SO₃对SO₂和氧的吸附不产生影响；在SO₃蓄积量达到一定限度后，则成为一种阻抑物质。同时还获得了吸附平衡常数和反应速率常数。

• Abstract：From Langmuir Hinshelwood method, the reaction kinetics equation was derived.It was proposed the whole process was divided into stages with different mechanisms, in the early stage of the process with low SO₃ accumulation, SO₃ had no effect on the adsorption of SO₂ and O₂.However when the amount of SO₃ exceeded a critical value, it acted as an inhibiting substance on the adsorption of the reactants thus substantially deceased the reaction rate.

• Key words：Sulfur dioxide  activated carbon  desulfurization  kinetics  catalytic oxidation

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