气相第2组分对水溶解CO2过程界面对流影响的LIF观测

doi:10.11949/j.issn.0438-1157.20161462

化工学报 ›› 2017, Vol. 68 ›› Issue (2): 584-593.DOI: 10.11949/j.issn.0438-1157.20161462

气相第2组分对水溶解CO₂过程界面对流影响的LIF观测

胡楠, 张会书, 傅强, 李陆星, 袁希钢

化学工程联合国家重点实验室, 天津大学化工学院, 天津 300072

收稿日期:2016-10-17 修回日期:2016-12-23 出版日期:2017-02-05 发布日期:2017-02-05
通讯作者: 袁希钢
基金资助:
国家自然科学基金项目（91434204）。

LIF measurement for effect of additive component in gas phase on interfacial convection for water-CO₂ dissolution process

HU Nan, ZHANG Huishu, FU Qiang, LI Luxing, YUAN Xigang

State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Received:2016-10-17 Revised:2016-12-23 Online:2017-02-05 Published:2017-02-05
Supported by:
supported by the National Natural Science Foundation of China(91434204).

摘要/Abstract

摘要：

采用激光诱导荧光（LIF）观测方法考察了在气相中分别添加乙醇和二氯甲烷分别对CO₂在水中溶解过程界面对流的影响，得到了液相中CO₂浓度分布及其演化的观测结果，通过物料衡算得到了相应条件下的液相传质系数。CO₂溶解过程会出现由密度梯度引起的Rayleigh对流。实验结果表明，当添加的乙醇含量小于8.47 mg·L^-1时，Rayleigh对流会被增强，进而促进了CO₂的溶解；随着气相中乙醇含量的增大，Rayleigh对流反而被抑制；气相添加二氯甲烷会显著增强Rayleigh对流，提高了CO₂的传质速率，随着气相二氯甲烷含量的增大，CO₂在水中溶解过程的液相传质系数呈现先加强后恒定的趋势。

关键词: 激光诱导荧光, 界面Rayleigh对流, 传质系数, 传质增强因子

Abstract:

Laser induced fluorescence (LIF) technique was employed to investigate the influence of additive component in gas phase on interfacial convection in the process of water-CO₂ dissolution. CO₂ concentration distributions in the liquid and their evolutions were obtained. Liquid side mass transfer coefficients were estimated using the measurement results. Rayleigh convection in the liquid occurred during water-CO₂ dissolution due to density gradient near the interface. The results showed that with the addition of ethanol of a low concentration (<8.47 mg·L^-1) in the gas, the Rayleigh convection enhanced and liquid side mass transfer was enforced. With further increase of ethanol concentration in the gas, Rayleigh convection and thus the liquid side mass transfer were inhibited. The experimental results also showed that the addition of dichloromethane in the gas is enhanced by both Rayleigh convection and the liquid side mass transfer for the process of CO₂ dissolution in water. With the increase of the concentration of dichloromethane in the gas, the liquid mass transfer coefficient tended to become constant.

Key words: laser induced fluorescence, interfacial Rayleigh convection, mass transfer coefficient, mass transfer enhancement factor

中图分类号:

TQ028

胡楠, 张会书, 傅强, 李陆星, 袁希钢. 气相第2组分对水溶解CO₂过程界面对流影响的LIF观测[J]. 化工学报, 2017, 68(2): 584-593.

HU Nan, ZHANG Huishu, FU Qiang, LI Luxing, YUAN Xigang. LIF measurement for effect of additive component in gas phase on interfacial convection for water-CO₂ dissolution process[J]. CIESC Journal, 2017, 68(2): 584-593.

参考文献 21

[1]	金雾, 曾爱武, 杨宁, 等. 有机物水溶液解吸的界面湍动现象的观察与分析[J]. 化工学报, 2014, 65(12):4942-4947. JIN W, ZENG A W, YANG N, et al. Interfacial turbulence in desorbing surface of tension-lowering solutes from water[J]. CIESC Journal, 2014, 65(12):4942-4947.
[2]	SUN Z F, YU K T. Rayleigh-Bénard-Marangoni cellular convection:expressions for heat and mass transfer rates[J]. Chemical Engineering Research & Design, 2006, 84(3):185-191.
[3]	ARENDT B, DITTMAR D, EGGERS R. Interaction of interfacial convection and mass transfer effects in the system CO2-water[J]. International Journal of Heat & Mass Transfer, 2004, 47(17/18):3649-3657.
[4]	YU K T, YUAN X G. Introduction to Computational Mass Transfer[M]. Berlin:Springer, 2014.
[5]	PRADIPTA K P, KRISHNAMURTHY M. Schlieren and Shadowgraph Methods in Heat and Mass Transfer[M]. New York:Springer, 2012.
[6]	沙勇, 李樟云, 林芬芬, 等. 气液传质界面湍动现象投影观察[J]. 化工学报, 2010, 61(4):844-847. SHA Y, LI Z Y, LIN F F, et al. Shadowgraph observation on interfacial turbulence phenomena in gas-liquid mass transfer[J]. CIESC Journal, 2010, 61(4):844-847.
[7]	谢蕊. 乙醇解吸气液界面传质的研究[D]. 天津:天津大学, 2007. XIE R. The study on mass transfer across the gas-liquid interface for ethanol desorption[D]. Tianjin:Tianjin University, 2007.
[8]	代静. 关于气液传质中Marangoni效应的实验研究[D]. 天津:天津大学, 2010. DAI J. Experimental study on Marangoni effect on the gas-liquid mass transfer process[D]. Tianjin:Tianjin University, 2010.
[9]	于海路, 曾爱武. 气液传质过程中Marangoni对流的观测与定量分析[J]. 化工学报, 2014, 65(10):3760-3768. YU H L, ZENG A W. Visualization and quantitative analysis for Marangoni convection in process of gas-liquid mass transfer[J]. CIESC Journal, 2014, 65(10):3760-3768.
[10]	GUO Y, YUAN X G, ZENG A W, et al. Measurement of liquid concentration fields near interface with cocurrent gas-liquid flow absorption using holographic interferometry[J]. Chinese Journal of Chemical Engineering, 2006, 14(6):747-753.
[11]	赵嵩, 陈曼, 曾爱武, 等. Marangoni对流的纹影实验分析[J]. 化工学报, 2016, 67(7):2702-2708. ZHAO S, CHEN M, ZENG A W, et al. Solutal Marangoni convection by Schlieren method[J]. CIESC Journal, 2016, 67(7):2702-2708.
[12]	张会书, 袁希钢, Kalbassi Mohammad Ali. 激光诱导荧光技术测量规整填料内的液体分布[J]. 化工学报, 2014, 65(9):3331-3339. ZHANG H S, YUAN X G, KALBASSI M A. Laser induced fluorescence technique for measuring liquid distribution in structured packing[J]. CIESC Journal, 2014, 65(9):3331-3339.
[13]	臧晓红, 王军, 刘延来, 等. 微量醇及电解质强化气液传质的研究[J]. 化学反应工程与工艺, 2005, 21(3):221-226. ZANG X H, WANG J, LIU Y L, et al. Intensification of gas-liquid mass transfer by addition of alcohols or electrolyte[J]. Chemical Reaction Engineering and Technology, 2005, 21(3):221-226
[14]	贾学五. 添加低表面张力物质对气液传质影响的实验研究[D]. 天津:天津大学. 2014. JIA X W. Experimental study on the influence of addition of low surface tension substance on gas-liquid mass transfer[D]. Tianjin:Tianjin University, 2014.
[15]	YANG N H, CHEN Y J, LIAO C C, et al. Improved absorption in gas-liquid systems by the addition of a low surface tension component in the gas and/or liquid phase[J]. Industrial & Engineering Chemistry Research, 2008, 47(22):8823-8827.
[16]	ICHIYANAGI M, TSUTSUI I, KAKINUMA Y, et al. Three-dimensional measurement of gas dissolution process in gas-liquid microchannel flow[J]. International Journal of Heat & Mass Transfer, 2012, 55(11/12):2872-2878.
[17]	陆霄露, 邓康耀. 采用激光诱导荧光法测量油膜厚度的研究[J]. 内燃机学报, 2008, 26(1):92-95. LU X L, DENG K Y. The study of film thickness measurement by laser induced fluorescence[J]. Transactions of CSICE, 2008, 26(1):92-95
[18]	李陆星, 胡楠, 袁希钢. 水吸收CO2过程界面对流的激光诱导荧光观测[J]. 化工学报, 2016, 67(10):4055-4063. LI L X, HU N, YUAN X G, Measurement using laser induced fluorescence technique for interfacial convection during water-CO2 absorption process[J]. CIESC Journal, 2016, 67(10):4055-4063.
[19]	时钧. 化学工程手册[M]. 二版. 北京:化学工业出版社, 1996:117, 564, 581. SHI J. Handbook of Chemical Engineering[M]. 2nd ed. Beijing:Chemical Industry Press, 1996:117, 564, 581.
[20]	LU H H, YANG A Y, MAA J R. On the induction criterion of the Marangoni convection at the gas/liquid interface[J]. Industrial & Engineering Chemistry Research, 1997, 36(2):474-482.
[21]	王勇, 张泽廷. 吸收过程中界面湍动对传质的影响[J]. 北京化工大学学报(自然科学版), 2002, 29(6):1-4. WANG Y, ZHANG Z T. Influence of interfacial turbulence on the mass transfer rate in physical absorption processes[J]. Journal of Beijing University of Chemical Technology, 2002, 29(6):1-4.

气相第2组分对水溶解CO₂过程界面对流影响的LIF观测

LIF measurement for effect of additive component in gas phase on interfacial convection for water-CO₂ dissolution process

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献 21

相关文章 15

编辑推荐

Metrics

本文评价

[1]	王凯玥, 马永丽, 李琛, 刘明言. 气液固微型流化床的气液传质系数[J]. 化工学报, 2022, 73(8): 3529-3540.
[2]	许晓东, 马晨波, 孙见君, 张玉言, 於秋萍. 基于最优传质系数的槽型结构参数对液膜机械密封汽化特性影响及优化[J]. 化工学报, 2022, 73(3): 1147-1156.
[3]	王芳,贾胜坤,张会书,袁希钢,余国琮. 基于实验数据的湍流扩散POD模态分析[J]. 化工学报, 2021, 72(9): 4531-4543.
[4]	王冠球, 林冠屹, 朱春英, 付涛涛, 马友光. 微通道反应器的一维放大及气液传质特性[J]. 化工学报, 2021, 72(2): 937-944.
[5]	郭达, 祁贵生, 刘有智, 焦纬洲, 闫文超, 高雨松. 错流旋转填料床的质、热同传性能及传热机理研究[J]. 化工学报, 2021, 72(11): 5543-5551.
[6]	张航,张巍,李伟锋,刘海峰,王辅臣. T型反应器内流动、混合及界面反应特征[J]. 化工学报, 2021, 72(10): 5064-5073.
[7]	杨锋苓, 张翠勋, 李美婷. 柔性Rushton搅拌桨混合性能的实验研究[J]. 化工学报, 2020, 71(2): 626-632.
[8]	刘作华, 孙伟, 熊黠, 陶长元, 王运东, 程芳琴. 脉冲射流-刚柔组合桨强化流体混沌混合及传质性能研究[J]. 化工学报, 2020, 71(10): 4632-4641.
[9]	董鑫, 许晓飞, 刘凤霞, 曾倩, 王晓娟, 魏炜, 刘志军. 鼓泡反应器中幂律型流体流动与传质特性[J]. 化工学报, 2018, 69(6): 2446-2454.
[10]	辛亚男, 张建文, 张淑珍, 姜爱国. 螺旋内槽管内天然气-水-表面活性剂体系的水合物生成动力学计算[J]. 化工学报, 2018, 69(6): 2463-2473.
[11]	傅强, 张会书, 胡楠, 袁希钢, 余国琮. 水溶解CO₂过程界面对流现象的PIV/LIF测量及传质系数预测[J]. 化工学报, 2018, 69(2): 586-594.
[12]	刘海龙, 曹宇, 丁学翀, 毛宝东, 王悦柔, 王军锋. 搅拌槽内液相层流荧光可视化及高效混合技术[J]. 化工学报, 2018, 69(12): 5042-5048.
[13]	朱乐, 齐亮, 姚克俭, 谢晓峰. 磁电复合场下正极钒离子的跨膜传质[J]. 化工学报, 2016, 67(S1): 148-158.
[14]	李陆星, 胡楠, 袁希钢. 水吸收CO₂过程界面对流的激光诱导荧光观测[J]. 化工学报, 2016, 67(10): 4055-4063.
[15]	陈志荣, 杨伟涛, 周凯, 黄海平, 尹红, 袁慎峰. 2,3,6-三甲基苯酚气-液-液氧化反应与传质过程[J]. 化工学报, 2015, 66(8): 2962-2967.