Gas-liquid reaction and mass transfer in microstructured coiled flow inverter

Kurt, Safa Kutup; Warnebold, Fabian; Nigam, K.D.P.; Kockmann, Norbert

doi:10.1016/j.ces.2017.01.017

Cited by 64 publications

(56 citation statements)

References 42 publications

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“…The latter can be further divided into offline [5,7] and online measurement techniques [8][9][10][11]. While the offline measurement techniques usually take two points of the reactor into account, namely, inlet and outlet, the online measurement techniques provide information on yield and selectivity along the entire reactor.…”

Section: Introductionmentioning

confidence: 99%

Local Mass Transfer Phenomena and Chemical Selectivity of Gas‐Liquid Reactions in Capillaries

et al. 2017

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Dedicated to Professor Rüdiger Lange on the occasion of his 65th birthday Gas-liquid reactions in microreactors play an important role in scientific research and industry. Enhancing heat and mass transfer allows overcoming mass transfer limitations in gas-liquid reactions. Mass transfer can be further increased by employing helically coiled capillaries, which induce Dean vortices and improve radial mixing. A colorimetric technique is proposed for gas-liquid reactions in straight and helically coiled capillaries in order to visualize local mass transfer phenomena and concentration distributions. This method is based on the consecutive oxidation of leuco-indigo carmine and enables noninvasive investigation of mass transfer and chemical selectivity in microchannels with high temporal and spatial resolution.

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Section: Introductionmentioning

confidence: 99%

Local Mass Transfer Phenomena and Chemical Selectivity of Gas‐Liquid Reactions in Capillaries

et al. 2017

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“…Among others, single‐phase flow , liquid‐liquid extraction system , gas‐liquid reaction and mass transfer , gas‐liquid‐solid precipitation , and liquid‐solid suspension behavior was investigated in the CFI.…”

Section: Chemical Reactor Equipmentmentioning

confidence: 99%

Equipment and Separation Units for Flow Chemistry Applications and Process Development

et al. 2019

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Process development and small‐scale production gets more and more important in fine chemistry and pharmaceutical production. An equipment toolbox assists process synthesis presented in this contribution. A microfluidic calorimeter can measure kinetic and thermodynamic reaction data with commercial plate reactors. A tubular reactor coiled with 90° bends allows for long residence time with low axial dispersion, also known as coiled flow inverter (CFI). A similar setup is used for continuous‐flow cooling crystallization. Small‐scale columns with rotating internals are employed for distillation and liquid‐liquid extraction. Main emphasis will be put on automation and scale‐up in future steps.

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“…The slug flow, which is characterized by alternating gas bubbles and liquid slugs, should be mentioned here as an example. Due to this flow pattern, a very narrow residence time distribution can be achieved for laminar capillary flow , .…”

Section: Responsive Equipmentmentioning

confidence: 99%

“…For example, knowledge of the CFI design for gas‐liquid reactions and multiphase reactions could be applied to cooling crystallization or liquid‐liquid extraction. In summary, CFI‐designed devices can be used for liquid‐liquid, gas‐liquid, and liquid‐solid systems , , , .…”

Section: Responsive Equipmentmentioning

confidence: 99%

Smart Equipment – A Perspective Paper

Kockmann

Bittorf

Krieger

et al. 2018

Chemie Ingenieur Technik

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Chemical equipment has to form a robust and efficient process space and was developed over the last centuries to very sophisticated, often highly specialized devices. With the upcoming information technology new opportunities arise with integrated sensors, and advanced control systems. Smart equipment is designed in form of intelligent modules. Furthermore, adaptive and integrated actuators convert the control signals to directly influence the process, thus, they can be described as responsive equipment. This contribution will give an overview of some activities in this field.

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Gas-liquid reaction and mass transfer in microstructured coiled flow inverter

Cited by 64 publications

References 42 publications

Local Mass Transfer Phenomena and Chemical Selectivity of Gas‐Liquid Reactions in Capillaries

Local Mass Transfer Phenomena and Chemical Selectivity of Gas‐Liquid Reactions in Capillaries

Equipment and Separation Units for Flow Chemistry Applications and Process Development

Smart Equipment – A Perspective Paper

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