Joshi J B, Nandakumar K
DAE, Homi Bhabha National Institute, Mumbai 400 094, India; email:
Annu Rev Chem Biomol Eng. 2015;6:347-78. doi: 10.1146/annurev-chembioeng-061114-123229. Epub 2015 Jul 2.
Multiphase reactors are very common in chemical industry, and numerous review articles exist that are focused on types of reactors, such as bubble columns, trickle beds, fluid catalytic beds, etc. Currently, there is a high degree of empiricism in the design process of such reactors owing to the complexity of coupled flow and reaction mechanisms. Hence, we focus on synthesizing recent advances in computational and experimental techniques that will enable future designs of such reactors in a more rational manner by exploring a large design space with high-fidelity models (computational fluid dynamics and computational chemistry models) that are validated with high-fidelity measurements (tomography and other detailed spatial measurements) to provide a high degree of rigor. Understanding the spatial distributions of dispersed phases and their interaction during scale up are key challenges that were traditionally addressed through pilot scale experiments, but now can be addressed through advanced modeling.
多相反应器在化学工业中非常常见,并且存在大量专注于反应器类型的综述文章,如鼓泡塔、滴流床、流化催化床等。目前,由于耦合流动和反应机制的复杂性,此类反应器的设计过程存在高度的经验性。因此,我们专注于综合计算和实验技术的最新进展,通过使用经高保真测量(断层扫描和其他详细空间测量)验证的高保真模型(计算流体动力学和计算化学模型)来探索大型设计空间,从而以更合理的方式实现此类反应器的未来设计,以提供高度的严谨性。理解分散相的空间分布及其在放大过程中的相互作用是传统上通过中试规模实验解决的关键挑战,但现在可以通过先进的建模来解决。