Improving CO2 mass transfer in microalgal cultures using an oscillatory flow reactor with smooth periodic constrictions

Abstract Oscillatory flow reactors (OFRs) superimpose an oscillatory flow to the net movement through a flow reactor. OFRs have been engineered to enable improved mixing, excellent heat- and mass transfer and good plug flow character under a broad range of operating conditions. Such features render these reactors appealing, since they are suitable for reactions that require long residence times, improved mass transfer (such as in biphasic liquid-liquid systems) or to homogeneously suspend solid particles. Various OFR configurations, offering specific features, have been developed over the past two decades, with significant progress still being made. This review outlines the principles and recent advances in OFR technology and overviews the synthetic applications of OFRs for liquid-liquid and solid-liquid biphasic systems.

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Intensification of the ozone-water mass transfer in an oscillatory flow reactor with innovative design of periodic constrictions: Optimization and application in ozonation water treatment

Chemical Engineering Journal ◽

10.1016/j.cej.2020.124412 ◽

2020 ◽

Vol 389 ◽

pp. 124412 ◽

Cited By ~ 4

Author(s):

Cátia A.L. Graça ◽

Rita Bravo Lima ◽

M. Fernando R. Pereira ◽

Adrián M.T. Silva ◽

António Ferreira

Keyword(s):

Mass Transfer ◽

Water Treatment ◽

Oscillatory Flow ◽

Water Mass ◽

Flow Reactor ◽

Innovative Design

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Effect of solids on O 2 mass transfer in an oscillatory flow reactor provided with smooth periodic constrictions

Chemical Engineering Science ◽

10.1016/j.ces.2016.12.067 ◽

2017 ◽

Vol 170 ◽

pp. 400-409 ◽

Cited By ~ 1

Author(s):

A. Ferreira ◽

Patrick O. Adesite ◽

J.A. Teixeira ◽

F. Rocha

Keyword(s):

Mass Transfer ◽

Oscillatory Flow ◽

Flow Reactor

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Oscillatory three-phase flow reactor for studies of bi-phasic catalytic reactions

Chemical Communications ◽

10.1039/c5cc02051d ◽

2015 ◽

Vol 51 (43) ◽

pp. 8916-8919 ◽

Cited By ~ 28

Author(s):

Milad Abolhasani ◽

Nicholas C. Bruno ◽

Klavs F. Jensen

Keyword(s):

Mass Transfer ◽

Oscillatory Flow ◽

Flow Reactor ◽

Catalytic Reactions ◽

Phase Flow ◽

Three Phase ◽

Three Phase Flow ◽

Multi Phase Flow ◽

Multi Phase ◽

Time Limitations

Oscillatory flow reactor strategy removes the mixing, mass transfer and residence time limitations associated with continuous multi-phase flow approaches for studies of bi-phasic C–C and C–N catalytic reactions.

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Modeling of mass transfer in biofilms in oscillatory flow conditions using k-ɛ turbulence model

Water Science & Technology Water Supply ◽

10.2166/ws.2003.0104 ◽

2003 ◽

Vol 3 (1-2) ◽

pp. 201-207

Author(s):

H. Nagaoka ◽

T. Nakano ◽

D. Akimoto

Keyword(s):

Numerical Simulation ◽

Mass Transfer ◽

Turbulence Model ◽

Uptake Rate ◽

Oscillatory Flow ◽

Substrate Uptake ◽

Flow Conditions ◽

Mass Transfer Mechanism ◽

Substrate Uptake Rate ◽

Good Agreement

The objective of this research is to investigate mass transfer mechanism in biofilms under oscillatory flow conditions. Numerical simulation of turbulence near a biofilm was conducted using the low Reynold’s number k-ɛ turbulence model. Substrate transfer in biofilms under oscillatory flow conditions was assumed to be carried out by turbulent diffusion caused by fluid movement and substrate concentration profile in biofilm was calculated. An experiment was carried out to measure velocity profile near a biofilm under oscillatory flow conditions and the influence of the turbulence on substrate uptake rate by the biofilm was also measured. Measured turbulence was in good agreement with the calculated one and the influence of the turbulence on the substrate uptake rate was well explained by the simulation.

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