超临界水氧化中热液氧化的能量回收模拟

Benmakhlouf Nadjiba, Outili Nawel, Meniai Abdesslam Hassen
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引用次数: 0

摘要

水热氧化法是一种高效、清洁的污水处理方法;在一定条件下,通过高度放热的氧化反应,它也是一个能量自给的过程。本文研究了超临界条件下苯酚污染水的水热氧化模拟。首先,我们应用了一个简单的管式反应器数学模型,该模型是由质量、动量和能量平衡产生的,通常难以以其一般形式求解。根据适当的简化,计算了沿反应器的化学物质的温度和浓度分布;在开发的Mathcad程序中使用有限差分,该程序返回的结果与文献中的实验结果接近。采用实验设计的方法,量化了操作条件对处理效率和放热反应产生的热量回收的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling of hydrothermal oxidation in supercritical water oxidation with energy recovery
The hydrothermal oxidation is an efficient and clean way for wastewater treatment; it is also an energy self sufficient process under certain conditions, by the mean of the highly exothermic reaction of oxidation. In this present work, we studied the modeling of hydrothermal oxidation of phenol polluted water in supercritical conditions. First we apply a simple mathematical model for tubular reactor, resulting from mass, momentum and energy balances, which is often difficult to solve in its general form. According to adequate simplifications, the profiles of temperature and concentration of chemical species are computed along the reactor; using finite differences with a developed Mathcad program which returns results close to those from experimental works from literature. A design of experiment method was also applied to quantify the influence of operation conditions on the treatment efficiency and on the recovery of the heat generated by the exothermic reaction.
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