SMART‐Reactors: Tailoring Gas Holdup Distribution by Additively Manufactured Lattice Structures,Chemical Engineering & Technology

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SMART‐Reactors: Tailoring Gas Holdup Distribution by Additively Manufactured Lattice Structures
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-07-21 , DOI: 10.1002/ceat.202000211
Claas Spille ₁ , Anastasios Lyberis ₁ , Maria Isabelle Maiwald ₂ , Dirk Herzog _{2,

3} , Marko Hoffmann ₁ , Claus Emmelmann ₂ , Michael Schlüter ₁

Affiliation

In chemical process engineering, fast gas‐liquid reactions often suffer from an inefficient distribution of gas and therefore mixing and mass transfer performance. This study deals with the possibility of influencing the local gas holdup and bubble size distribution in a gas‐liquid process using additively manufactured lattice structures (AMLS). The used measuring technique to study bubble size, velocity, and the local gas holdup is a photo‐optical needle probe. By using AMLS, a significant radial homogenization of the local gas holdup and the mean bubble size is achieved. Furthermore, it can be demonstrated that the bubble size can be tailored by the geometry of the inserted structure. It is illustrated that the mean bubble velocities are lowered within the lattice resulting in a higher residence time of the dispersed phase with an impact on the mass transfer performance within the AMLS.

中文翻译：

SMART反应器：通过增材制造的晶格结构定制气体滞留量分布

在化学过程工程中，快速的气液反应通常会导致气体分配效率低下，从而导致混合和传质性能下降。本研究探讨了使用增材制造的晶格结构（AMLS）影响气液过程中局部气体滞留率和气泡尺寸分布的可能性。用于研究气泡大小，速度和局部气体滞留率的测量技术是光电探针。通过使用AMLS，可以实现局部气体滞留量和平均气泡尺寸的显着径向均质化。此外，可以证明，可以通过插入的结构的几何形状来调整气泡的大小。

更新日期：2020-09-21

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