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Dynamic modeling of absorption/desorption closed-loop including periphery
Computers & Chemical Engineering ( IF 4.3 ) Pub Date : 2022-08-12 , DOI: 10.1016/j.compchemeng.2022.107960
Mike Bothe , Iman Hami Dindar , Nicole Lutters , Eugeny Y. Kenig

Reactive absorption is one of the most important separation processes used within the chemical industry to address the environmental protection challenges. In this process, undesirable gaseous components are captured by chemical reaction in a solvent and the loaded solvent is then regenerated in the desorption unit. Both process steps take place simultaneously and strongly interact resulting in a very complex process behavior. To ensure stable and safe process operation, even in presence of instabilities/malfunctions, understanding of the dynamic process behavior is essential. In this work, the development of a novel dynamic model for simulation of a reactive absorption/desorption process in a closed-loop configuration including the periphery of the plant is presented. The validation of the model is accomplished based on two dynamic experiments carried out in our own pilot plant. The deviations between experimental and simulated outlet gas concentrations are below 10% for both experiments.



中文翻译:

包括外围在内的吸收/解吸闭环的动态建模

反应吸收是化学工业中用于应对环境保护挑战的最重要的分离工艺之一。在这个过程中,不需要的气态成分通过溶剂中的化学反应被捕获,然后负载的溶剂在解吸单元中再生。两个过程步骤同时发生并强烈相互作用,导致非常复杂的过程行为。为了确保稳定和安全的过程操作,即使存在不稳定/故障,了解动态过程行为也是必不可少的。在这项工作中,提出了一种新型动态模型的开发,用于模拟包括工厂外围在内的闭环配置中的反应性吸收/解吸过程。该模型的验证是基于在我们自己的试验工厂中进行的两个动态实验完成的。两个实验的实验和模拟出口气体浓度之间的偏差均低于 10%。

更新日期:2022-08-12
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