Abstract A porous activated carbon (AC) was synthesized from cotton black liquor, and the synthesis process was optimized using response surface method (RSM). The AC prepared under the optimal condition was applied to the direct H2S catalytic oxidation. Complete parametrical computational fluid-dynamic (CFD) model, coupling stoichiometric reaction with variation of porosity as the user-defined scalars (UDS), was developed to simulate the removal process. Various experiments, including breakthrough, pressure drops, and H2S conversion at different experimental conditions, were carried out. The CFD model was validated by results from the experiments, as the experiment results were found to adequately match model predictions. Hence, the model developed in this study can be a useful tool for studying the fluid dynamics of H2S oxidation by AC catalyst at investigated experimental conditions.

中文翻译：

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棉浆黑液制备活性炭对H2S氧化的实验及CFD研究

摘要 以棉黑液为原料合成了一种多孔活性炭（AC），并采用响应面法（RSM）对合成工艺进行了优化。将最佳条件下制备的活性炭应用于H2S的直接催化氧化。开发了完整的参数计算流体动力学 (CFD) 模型，将化学计量反应与孔隙度变化耦合作为用户定义的标量 (UDS)，以模拟去除过程。进行了各种实验，包括在不同实验条件下的穿透、压降和 H2S 转化。实验结果验证了 CFD 模型，因为发现实验结果与模型预测充分匹配。因此，