Ultrasound-assisted capillary microreactor for aqueous-organic multiphase reactions

被引:35
作者
Aljbour, Salah [1 ]
Tagawa, Tomohiko [1 ]
Yamada, Hiroshi [1 ]
机构
[1] Nagoya Univ, Dept Chem Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
关键词
Capillary microreactor; Low frequency ultrasound; Process intensification; Multiphase reactions; Aqueous-organic systems; PHASE-TRANSFER CATALYSIS; SLUG-FLOW; INTENSIFICATION; TECHNOLOGY;
D O I
10.1016/j.jiec.2009.09.008
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A simple capillary microreactor was tested as a potential reactor to carry out a multiphase reaction. The hydrolysis of benzyl chloride in a biphasic system was investigated. The capillary microreactor was irradiated by 28 kHz ultrasound at different temperatures, capillary lengths and phase flow rates. It was found that the combination of microreactor technique and the ultrasound irradiation provides a promising protocol for process intensification. Under sonication conditions, higher conversions were obtained compared to silent conditions. The presence of ultrasound has affected the multiphase slug size and promoted better internal circulation within these slugs. Similar reactivities were noticed at higher temperature for both sonication and silent conditions. (C) 2009 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:829 / 834
页数:6
相关论文
共 23 条
  • [1] Effect of segmented fluid flow, sonication and phase transfer catalysis on biphasic reactions in capillary microreactors
    Ahmed-Omer, Batoul
    Barrow, David
    Wirth, Thomas
    [J]. CHEMICAL ENGINEERING JOURNAL, 2008, 135 (S280-S283) : S280 - S283
  • [2] BUGSCH HJ, 1994, Patent No. 5728897
  • [3] The intensification of rapid reactions in multiphase systems using slug flow in capillaries
    Burns, JR
    Ramshaw, C
    [J]. LAB ON A CHIP, 2001, 1 (01): : 10 - 15
  • [4] DUDUKOVIC MP, 2006, AICHE PROC DEV S PDS
  • [5] The capillary-microreactor:: a new reactor concept for the intensification of heat and mass transfer in liquid-liquid reactions
    Dummann, G
    Quittmann, U
    Gröschel, L
    Agar, DW
    Wörz, O
    Morgenschweis, K
    [J]. CATALYSIS TODAY, 2003, 79 (1-4) : 433 - 439
  • [6] Ehrfeld W., 2000, Microreactors: new technology for modern chemistry, DOI DOI 10.1002/3527601953
  • [7] Günther A, 2006, LAB CHIP, V6, P1487, DOI 10.1039/b609851g
  • [8] Comparison of the effects of ultrasound and mechanical agitation on a reacting solid-liquid system
    Hagenson, LC
    Doraiswamy, LK
    [J]. CHEMICAL ENGINEERING SCIENCE, 1998, 53 (01) : 131 - 148
  • [9] A numerical model for segmented flow in a microreactor
    Harries, N
    Burns, JR
    Barrow, DA
    Ramshaw, C
    [J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2003, 46 (17) : 3313 - 3322
  • [10] Internal circulation within the liquid slugs of a liquid-liquid slug-flow capillary microreactor
    Kashid, MN
    Gerlach, I
    Goetz, S
    Franzke, J
    Acker, JF
    Platte, F
    Agar, DW
    Turek, S
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (14) : 5003 - 5010