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Development and evaluation of novel designs of continuous mesoscale oscillatory baffled reactors

Lookup NU author(s): Professor Anh Phan, Professor Adam Harvey

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Abstract

Oscillatory baffled reactors (OBRs) are a form of plug flow reactor, ideal for performing long reactions in continuous mode, as the mixing is independent of net flow rate leading to more compact and practical designs. Mesoscale OBRs are currently being developed for laboratory-scale processes. The systems are designed to scale-up to industrial scale directly, or to be used as small-scale production platforms in their own right. Three different meso-reactor baffle designs (integral baffles, helical baffles and axial circular baffles (or "central") baffles) were developed. These designs were chosen, as they are easily fabricated at "mesoscales" (here typically similar to 5 mm diameter) and can be operated at low flow rates (mu l/min to ml/min), whereas conventional designs of OBRs cannot. It was found that an increase in the net flow Reynolds number increased the optimum range of oscillatory Reynolds numbers over which plug flow can be achieved. The oscillation conditions had little effect on the residence time distribution behaviour at net flow Reynolds numbers above 25. These designs are effective and robust in scaled-down production of high added value products and decreasing the reagents required. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.


Publication metadata

Author(s): Phan AN, Harvey A

Publication type: Article

Publication status: Published

Journal: Chemical Engineering Journal

Year: 2010

Volume: 159

Issue: 1-3

Pages: 212-219

Print publication date: 01/05/2010

ISSN (print): 1385-8947

ISSN (electronic): 1873-3212

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.cej.2010.02.059

DOI: 10.1016/j.cej.2010.02.059


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