Ultrasound-assisted capillary microreactor for aqueous-organic multiphase reactions

被引：36

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

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2009年 / 15卷 / 06期

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

页码：829 / 834

页数：6

共 23 条

[1] Effect of segmented fluid flow, sonication and phase transfer catalysis on biphasic reactions in capillary microreactors [J].

Ahmed-Omer, Batoul ;

Barrow, David ;

Wirth, Thomas .

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 [J].

Burns, JR ;

Ramshaw, C .

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 [J].

Dummann, G ;

Quittmann, U ;

Gröschel, L ;

Agar, DW ;

Wörz, O ;

Morgenschweis, K .

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 [J].

Hagenson, LC ;

Doraiswamy, LK .

CHEMICAL ENGINEERING SCIENCE, 1998, 53 (01) :131-148

[9] A numerical model for segmented flow in a microreactor [J].

Harries, N ;

Burns, JR ;

Barrow, DA ;

Ramshaw, C .

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 [J].

Kashid, MN ;

Gerlach, I ;

Goetz, S ;

Franzke, J ;

Acker, JF ;

Platte, F ;

Agar, DW ;

Turek, S .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (14) :5003-5010

← 1 2 3 →