氧化沉和动力学参数识别的计算建模
Antonello Raponi1, Salvatore Romano2, Giuseppe Battaglia2
1Department of Applied Science and Technology, Institute of Chemical Engineering-Politecnico di Torino, Torino 10129, Italy.
Crystal growth & design
|July 10, 2023
概括
这项研究开发了从盐水中氧化沉的计算模型. 该模型通过实验数据验证,有助于为这种关键原料设计工业沉过程.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
- 计算建模 计算建模
背景情况:
- 从工盐中以氧化 (Mg(OH) 2) 的形式回收至关重要.
- 有效的过程设计需要一个集流体动力学,核化,生长和聚合的计算模型.
研究的目的:
- 开发和验证一个计算模型的Mg(OH) 2沉.
- 用实验数据推断和验证未知的动力学参数.
主要方法:
- 在OpenFOAM中使用k-ε流模型利用计算流体动力学 (CFD).
- 采用了CFD提供的插头流量反应堆模型,结合了Bromley的活动系数校正和微混合模型.
- 使用时刻的二次方程和参数识别的全局受约束优化来解决人口平衡方程.
主要成果:
- 成功推断和验证了Mg(OH) 2沉降的运动参数.
- 粒子大小分布 (PSD) 的模型预测与不同混合器 (T2mm和T3mm) 的实验数据相匹配.
结论:
- 开发的计算模型具有验证的动力学,适用于工业MgO2沉设计.
- 这项工作为扩大从盐水中回收Mg{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\displaystyle M_{\}}}}的必要参数提供了必要的参数.
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