Enhancing gas-liquid volumetric mass transfer coefficient

초록

Methane-based biorefineries for biofuel production by microorganisms has gained interest due to the worldwide development of shale gas as an alternative source for fossil fuels. For the practical application of biological conversion process to industrial scale, enhancement of the gas-liquid volumetric mass transfer coefficient (k(L)a) in a gas diffusing system is crucial. This review article provides an overview of the developments on gas-liquid volumetric mass transfer enhancement through increasing the gas-liquid mass transfer coefficient term 'k(L)' and/or increasing the gas-liquid interfacial area term 'a'. Two major enhancement methods which are summarized and discussed here include the most recent accomplishments in gas-liquid mass transfer engineering of gas diffusing systems. The most up-to-date mechanical modification of reactor and additive employment rationales and discussions providing a strong understanding of gas-liquid volumetric mass transfer relationships are presented. Thus, this review is expected to inspire new research for future developments and applications in gas-liquid mass transfer engineering for gas diffusing systems. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

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