Mass transfer during single bubble growing in static non-Newtonian fluid

YI Yanyan; WANG Zhihui; YANG Chao; MAO Zaisha; WANG Qibao

doi:10.11949/j.issn.0438-1157.20150417

您当前的位置：

首页 >

文章列表页 >

Mass transfer during single bubble growing in static non-Newtonian fluid

更新时间：2025-12-10

- Mass transfer during single bubble growing in static non-Newtonian fluid
- CIESC Journal Issue 11, Pages: 4335-4341(2015)
- 作者机构：
  
  1. 中国矿业大学(北京),北京,100083
  2. 中国科学院过程工程研究所, 生化工程国家重点实验室,北京,100190
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150417
  CLC： Q021.4
- Online First：05 November 2015，
  
  Published：05 November 2015
- 稿件说明：
移动端阅览
YI Yanyan, WANG Zhihui, YANG Chao, et al. Mass transfer during single bubble growing in static non-Newtonian fluid[J]. CIESC Journal, 2015, (11): 4335-4341.
DOI：

YI Yanyan, WANG Zhihui, YANG Chao, et al. Mass transfer during single bubble growing in static non-Newtonian fluid[J]. CIESC Journal, 2015, (11): 4335-4341. DOI： 10.11949/j.issn.0438-1157.20150417.

摘要

气泡生成过程中气液传质是气液接触设备的设计、优化的重要参考指标。以二氧化碳气泡在羧甲基纤维素钠(carboxymethyl cellulose

CMC)溶液中生成过程中的传质为研究对象

分别考察了气速、CMC溶液浓度、针头直径对气泡生成过程气液传质的影响

采用具有CCD显微相机的动态接触角分析仪测量了气泡形状、表面积和体积的变化

进而获得气泡生成过程气液传质系数kl。实验结果表明

CMC浓度从0.2%增加到0.8%

黏度逐渐增大

传质系数随CMC浓度的增大而增大;针头直径从2.5 mm增加到4 mm

传质系数也随之增大;气速从1 ml·min-1增加到9 ml·min-1

传质系数也逐渐增大。

Abstract

The mass transfer process of growing bubbles has important effect on the design and optimization of gas-liquid contacting devices. By investigating a single carbon dioxide bubble growing in a sodium carboxymethyl cellulose (CMC) solution

the effects of gas velocity

concentration of CMC solution

and diameter of the needle on gas-liquid mass transfer were examined. The shape

surface area and volume of growing bubble were captured by a dynamic contact angle analysis instrument with a micro-CCD camera and the liquid mass transfer coefficient kl was calculated. The results show that the mass transfer coefficient increased with the solution viscosity as CMC concentration increased from 0.2% to 0.8%

with the diameter of the needle changing from 2.5 mm to 4 mm

and with the gas injection rate increased from 1 ml·min-1 to 9 ml·min-1.

关键词

Keywords

references

Views

368

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Flow and mass transfer characteristics of Newtonian/non-Newtonian liquid-liquid flow in a microreactor

Origin of low productivity of underground coal gasification: diffusion and reaction in stagnant boundary layer and gasification tunnel

Mass transfer performance of CO2 absorption into aqueous mixture of monoethanolamine with N-methyldiethanolamine in microchannel

Hydrodynamic and mass transfer characteristics of power-law fluids in bubbling reactors

Simultaneous PIV/LIF measurements of interfacial convection during CO2 dissolution in water and prediction of mass transfer coefficient

Related Author

ZHANG Dewang

ZHAO Qiankun

GUO Xiaoni

YAO Chaoqun

CHEN Guangwen

Zhenyu LIU

LIN Guanyi

ZHU Chunying

Related Institution

Dalian Institute of Chemical Physics, Chinese Academy of Sciences

School of Chemistry and Chemical Engineering, China University of Petroleum

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology

State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University

Research & Design Institute of Fluid and Powder Engineering, Dalian University of Technology

⁰