催化海水烟气脱硫模型。

Catalytic seawater flue gas desulfurization model.

机构信息

Department of Chemical and Environmental Engineering, University of Seville, Camino de los Descubrimientos s/n, 41092, Sevilla, Spain.

出版信息

Environ Sci Technol. 2009 Dec 15;43(24):9393-9. doi: 10.1021/es901863u.

DOI:10.1021/es901863u

PMID:20000534

Abstract

A model of a seawater flue gas desulfurization process (SFGD) where oxidation of the absorbed SO(2) is catalyzed by activated carbon is presented. The modeled SFGD process is comprised of two main units, an absorption packed scrubber, where SO(2) absorption takes place, and an oxidation basin, where the absorbed SO(2) is catalytically oxidized to sulfate, a natural component of seawater. The model takes into account the complex physical-chemical features of the process, combining mass-transfer, kinetics and equilibrium equations, and considering the electrolyte nature of the liquid phase. The model was validated with data from a SFGD pilot plant and a sensitivity analysis was performed, showing its predictive capability. The model is a useful tool for designing industrial desulfurization units with seawater.

摘要

介绍了一种海水烟气脱硫（SFGD）工艺模型，其中吸收的 SO₂ 通过活性炭催化氧化。所建模的 SFGD 工艺由两个主要单元组成，一个是吸收填充洗涤器，其中发生 SO₂ 吸收，另一个是氧化池，其中吸收的 SO₂ 被催化氧化为硫酸盐，这是海水的一种天然成分。该模型考虑了该过程的复杂物理化学特性，结合了传质、动力学和平衡方程，并考虑了液相的电解质性质。该模型使用 SFGD 中试工厂的数据进行了验证，并进行了敏感性分析，展示了其预测能力。该模型是设计海水脱硫装置的有用工具。