Enhancing interfacial mass transfer for high-viscosity fluids: Hydrodynamic and mass transfer by twin-liquid film

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2025-01-06 DOI:10.1002/aic.18708

Long He, Hanguang Xie, Yuan Zong, Ling Zhao, Gance Dai

引用次数: 0

Abstract

The twin-liquid film, which combines wall-bounded film supported by a solid wall and confined-free film through the opening window, has been investigated on a plate with multi-windows. The interaction of wall-bounded film and confined free film has been discussed and the optimal window configurations are obtained with consideration of mass transfer enhancement as well as film stability. The mass transfer rate of the opening window plate is increased by 1.9–2.6 times compared with the solid plate. The acceleration and thinning of the confined-free film are the primary causes of its mass transfer enhancement, with additional contributions from the thinning of the wall-bounded film. To achieve the highest mass transfer efficiency as viscosity increases and diffusion coefficient decreases, it is crucial to maximize the window size without compromising film formation. Twin-liquid films show promising applications in the reactors involving highly viscous fluids such as carbon capture and devolatilization.

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提高高粘度流体的界面传质：双液膜的流体力学和传质

研究了在多窗板上形成的双液膜，该双液膜是由固体壁支撑的有壁膜和通过开口窗的无约束膜相结合的。讨论了有壁膜和受限自由膜的相互作用，得到了考虑传质增强和膜稳定性的最佳窗口构型。开口窗板的传质率比实心板提高了1.9 ~ 2.6倍。无约束膜的加速和变薄是其传质增强的主要原因，有壁膜的变薄也有额外的贡献。随着粘度的增加和扩散系数的降低，为了达到最高的传质效率，在不影响薄膜形成的情况下最大化窗口尺寸是至关重要的。双液膜在高粘性流体如碳捕获和脱挥发等反应器中有很好的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.