Received:August 13, 2019;   Published: August 27, 2019

DOI: 10.32474/MAOPS.2019.02.000149

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Abstract

Channels with small hydraulic diameters are novel contactors that enhance mass transfer rate due to great interfacial area to volume ratio and flow hydrodynamics. One of the interesting applications of small channels is gas absorption processes including oxygen absorption, carbon dioxide capturing, methane and hydrogen sulfide absorption and volatile organic compounds (VOCs) sequestration. This research presents a brief review on the recent developments and advances in application of Minichannels in gas absorption process, flow hydrodynamics and mass transfer characteristics in Minichannels. The major studies have been conducted on the CO2 capture and separation by aqueous solution of amines due to effect of CO2 emission on the global warming and popularity of CO2 separation units. Although many researches have been conducted on gas absorption in mini contactors, there is a long way to industrialize this technology.

Keywords: Small scale channels; Mass transfer; Flow regime; Gas absorption

Abstract| Introduction| Flow Hydrodynamics| Mass Transfer Performance| Applications of Minichannels| Oxygen Absorption| Scale Up| Conclusion and Future Outlooks| References|