微型堆积床反应器中气液两相流的液体截留量

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL AIChE Journal Pub Date : 2024-11-13 DOI:10.1002/aic.18636

Keyi Chen, Yangcheng Lu

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引用次数: 0

摘要

液体滞留是研究微填料床反应器（μPBR）流体力学行为的一个关键因素。本研究采用称重法对液体滞留值进行了精确研究。填料床是一个长 20 厘米、内径 4 毫米的不锈钢管，内填 177-250 微米或 350-500 微米的微珠。气体和液体流速分别为 5 至 20 mL/min 和 0.25 至 2 mL/min。根据实验结果，对流动区域提出了新的假设。此外，还建立了一套新的经验相关性，尤其是对于粘度介于 0.99 至 5.98 mPa-s 之间的粘性液体，其相关性非常一致，显示出一种非典型趋势。

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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Liquid holdup of gas–liquid two-phase flow in micro-packed beds reactors

Liquid holdup is a crucial factor in the study of hydrodynamic behaviors in the micro-packed bed reactor (μPBR). In this work, the values of liquid holdup are studied with the weighing method with good accuracy. The packed bed is a tube made of stainless steel with a length of 20 cm and an inner diameter of 4 mm, packed with 177–250 μm or 350–500 μm microbeads. The gas and liquid flow rates vary from 5 to 20 mL/min and 0.25 to 2 mL/min, respectively. A new hypothesis of the flow regions is proposed based on the experimental results. Furthermore, a new set of empirical correlation is built with great agreement, particularly for viscous liquids, whose viscosity ranges from 0.99 to 5.98 mPa·s, showing an atypical tendency.

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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.