Flow synthesis of 1-ethyl-3-methylimidazolium ethyl sulfate in a PTFE micro-capillary: an experimental and numerical study

IF 2.3 4区 工程技术 Q2 INSTRUMENTS & INSTRUMENTATION
Nirvik Sen, K. K. Singh, S. Mukhopadhyay, K. T. Shenoy
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Abstract

In this work, we have reported continuous flow synthesis of 1-ethyl-3-methylimidazolium ethyl sulfate ionic liquid in a PTFE micro-capillary. A Y-shaped microfluidic junction is used to mix the incoming reactants. Effects of independent parameters like velocity, reaction temperature, and micro-capillary diameter on product yield, rate of production, and space–time yield are reported. Yield is seen to increase monotonically as reaction temperature is increased, while it reduces with an increase in diameter of the micro-capillary. A maxima in yield is observed as flow velocity is increased. A space–time yield of 1258.4 g/min.L is obtained at a reaction temperature of 80 0C using a 300 µm micro-capillary. A two-dimensional computational fluid dynamics (CFD) model of the reacting system has been developed to confirm and explain the observed experimental trends. The simulations were able to qualitatively predict the experimental trends. The simulations also investigated the effect of shapes of different obstacles placed in the flow path.

Abstract Image

PTFE毛细管流动合成1-乙基-3-甲基咪唑硫酸乙酯的实验与数值研究
在本工作中,我们报道了在PTFE微毛细管中连续流动合成1-乙基-3-甲基咪唑鎓硫酸乙酯离子液体。Y形微流体接头用于混合进入的反应物。报道了速度、反应温度和微毛细管直径等独立参数对产物产率、产率和时空产率的影响。产率随着反应温度的升高而单调增加,而随着微毛细管直径的增加而降低。随着流速的增加,观察到产量的最大值。使用300µm微毛细管在80℃的反应温度下获得1258.4 g/min.L的时空产率。已经开发了反应系统的二维计算流体动力学(CFD)模型,以证实和解释观察到的实验趋势。模拟能够定性地预测实验趋势。模拟还研究了流动路径中不同障碍物形状的影响。
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来源期刊
Microfluidics and Nanofluidics
Microfluidics and Nanofluidics 工程技术-纳米科技
CiteScore
4.80
自引率
3.60%
发文量
97
审稿时长
2 months
期刊介绍: Microfluidics and Nanofluidics is an international peer-reviewed journal that aims to publish papers in all aspects of microfluidics, nanofluidics and lab-on-a-chip science and technology. The objectives of the journal are to (1) provide an overview of the current state of the research and development in microfluidics, nanofluidics and lab-on-a-chip devices, (2) improve the fundamental understanding of microfluidic and nanofluidic phenomena, and (3) discuss applications of microfluidics, nanofluidics and lab-on-a-chip devices. Topics covered in this journal include: 1.000 Fundamental principles of micro- and nanoscale phenomena like, flow, mass transport and reactions 3.000 Theoretical models and numerical simulation with experimental and/or analytical proof 4.000 Novel measurement & characterization technologies 5.000 Devices (actuators and sensors) 6.000 New unit-operations for dedicated microfluidic platforms 7.000 Lab-on-a-Chip applications 8.000 Microfabrication technologies and materials Please note, Microfluidics and Nanofluidics does not publish manuscripts studying pure microscale heat transfer since there are many journals that cover this field of research (Journal of Heat Transfer, Journal of Heat and Mass Transfer, Journal of Heat and Fluid Flow, etc.).
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