DEQ/LEPAE, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal.
J Hazard Mater. 2010 Jun 15;178(1-3):469-82. doi: 10.1016/j.jhazmat.2010.01.106. Epub 2010 Jan 28.
A mathematical model describing the dry-scrubbing of gaseous hydrogen chloride (HCl) with solid hydrated lime particles (Ca(OH)(2)) was developed and experimentally verified. The model applies to cyclone systems with and without recirculation, where reaction and particle collection occurs in the same processing unit. The Modified Grain Model was selected to describe the behavior of the reaction process and it was assumed that the gas and the solid particles flow in the reactor with a plug flow. In this work, this behavior is approximated by a cascade of N CSTRs in series. Some of the model parameters were estimated by optimization taking into account the experimental results obtained. A good agreement was observed between the experimental results and those predicted by the model, where the main control resistance is the diffusion of the gaseous reactant in the layer of solid product formed.
开发并实验验证了一个描述气态氯化氢（HCl）与固体水合石灰颗粒（Ca(OH)(2)）干式洗涤的数学模型。该模型适用于带和不带再循环的旋风系统，其中反应和颗粒收集在同一处理单元中进行。选择修正的颗粒模型来描述反应过程的行为，并假设气体和固体颗粒在反应器中以活塞流的方式流动。在这项工作中，这种行为通过 N 个串联的连续搅拌釜式反应器（CSTR）来近似。通过考虑获得的实验结果进行优化，估算了模型的一些参数。实验结果与模型预测之间观察到了很好的一致性，其中主要的控制阻力是气态反应物在形成的固体产物层中的扩散。
