新型垂直板规整填料流体力学及传质性能

doi:10.3969/j.issn.0438-1157.2014.01.015

化工学报 ›› 2014, Vol. 65 ›› Issue (1): 116-122.DOI: 10.3969/j.issn.0438-1157.2014.01.015

新型垂直板规整填料流体力学及传质性能

胡剑光, 刘佳特, 袁猛, 于建国, 戴干策

华东理工大学化学工程联合国家重点实验室, 上海 200237

收稿日期:2013-02-25 修回日期:2013-09-09 出版日期:2014-01-05 发布日期:2014-01-05
通讯作者: 戴干策
作者简介:胡剑光（1986-），男，博士研究生。

Hydrodynamics and mass transfer characteristics of a novel vertical-sheet structured packing

HU Jianguang, LIU Jiate, YUAN Meng, YU Jianguo, DAI Gance

State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

Received:2013-02-25 Revised:2013-09-09 Online:2014-01-05 Published:2014-01-05

摘要/Abstract

摘要： 采用氧解吸实验，在直径190 mm的有机玻璃塔内，液相喷淋密度10～38 m³·m^-2·h^-1，F因子0.2～3.2 m·s^-1·（kg·m^-3）^0.5的实验条件下测定了一种新型垂直板规整填料的流体力学及传质性能。实验结果表明：垂直板填料的操作压降及传质性能均显著优于商业波纹填料。通过与几种经改进的250型波纹填料相比发现，两者泛点F因子整体上相当；在较高液体喷淋密度下，垂直板填料传质性能及压降均高于改进250型波纹填料；在低喷淋密度下，垂直板填料可实现压降低于改进250型波纹填料，而两者传质性能相当。此外，对填料结构改进对其性能的影响进行了单因素考察。

关键词: 流体力学, 传质, 两相流, 规整填料

Abstract: A novel vertical-sheet structured packing was developed to achieve better performance as compared with conventional structured packings. In order to evaluate hydrodynamics and mass transfer performance of the packing, desorption of oxygen from water was carried out in a packed column with 190 mm internal diameter operated at liquid load of 10—38 m³·m^-2·h^-1 and F factor of 0.2—3.2 m·s^-1·(kg·m^-3)^0.5. The results show that compared with conventional structured packings with similar specific surface area, the pressure drop and the height of liquid transfer unit of the new packing are lower. The comparisons between the new packing and several improved structured packings with similar specific surface area demonstrate that the capacities of these packings are almost equivalent, while the mass transfer efficiency and pressure drop of the new packing are higher at high liquid load and its pressure drop is lower at low liquid load. For the influence of structure, it is shown that the high mass transfer efficiency of the new packing attributes largely to its novel geometry.

Key words: hydrodynamics, mass transfer, two-phase flow, structured packing

中图分类号:

TQ021.4

胡剑光, 刘佳特, 袁猛, 于建国, 戴干策. 新型垂直板规整填料流体力学及传质性能[J]. 化工学报, 2014, 65(1): 116-122.

HU Jianguang, LIU Jiate, YUAN Meng, YU Jianguo, DAI Gance. Hydrodynamics and mass transfer characteristics of a novel vertical-sheet structured packing[J]. CIESC Journal, 2014, 65(1): 116-122.

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新型垂直板规整填料流体力学及传质性能

Hydrodynamics and mass transfer characteristics of a novel vertical-sheet structured packing

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