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Reduced power consumption compared to a traditional stirred tank reactor (STR) for enzymatic saccharification of alpha-cellulose using oscillatory baffled reactor (OBR) technology

Lookup NU author(s): Dr Matt Abbott, Professor Adam Harvey

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Abstract

Enzymatic saccharification of pure a-cellulose was conducted in oscillatory baffled (OBR) and stirred tank (STR) reactors over a range of mixing intensities requiring power densities (P/V) from 0 to 250 Watts per cubic metre (W/m(3)). Both reactor designs produced similar saccharification conversion rates at zero mixing. Conversion increased with increasing mixing intensity. The maximum conversion rate occurred at an oscillatory Reynolds number (Re-0) of 600 in the OBR and at an impeller speed of between 185 and 350 rpm in the STR. The OBR was able to achieve a maximum conversion rate at a much lower power density (2.36W/m(3)) than the STR (37.2-250 W/m(3)). The OBR demonstrated a 94-99% decrease in the required power density to achieve maximum conversion rates and showed a 12% increase in glucose production after 24h at 2.36 W/m(3). (c) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Publication metadata

Author(s): Abbott MSR, Perez GV, Harvey AP, Theodorou MK

Publication type: Article

Publication status: Published

Journal: Chemical Engineering Research and Design

Year: 2014

Volume: 92

Issue: 10

Pages: 1969-1975

Print publication date: 01/10/2014

Online publication date: 21/01/2014

Acceptance date: 14/01/2014

ISSN (print): 0263-8762

ISSN (electronic): 1744-3563

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.cherd.2014.01.020

DOI: 10.1016/j.cherd.2014.01.020

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