Study of fame production from waste cooking oil: Operation in batch and continuous regime with regeneration of enzyme catalyst
authors Sorte, S; Ribeiro, JP; Coutinho, JAP; Nunes, MI
nationality International
author keywords Biodiesel; Enzyme regeneration; FAME; Novozyme (R) 435; Waste cooking oil
keywords BIODIESEL
abstract This work aimed to: (i) assess the performance of Novozyme (R) 435 for FAME production from waste cooking oil (WCO) under different oil acid values and enzyme-to-oil ratios; (ii) test different regeneration methods and assess the regenerated enzyme's performance; and (iii) determine FAME yield in continuous operation regime. Oil acid values up to 104 mg KOH.g(-1) and enzyme-to-WCO ratios of up to 20:80 (% wt.) were studied, with maximum yield recorded for increasing acid values and enzyme-to-WCO ratio. FAME production from WCO yield ranging 50%-80% was recorded for 5 consecutive production cycles (8h each, in batch regime) with no regeneration of the enzyme. Among the enzyme regeneration methods tested, the highest FAME yield was recorded using t-butanol washing followed by enzyme incubation in the WCO before reusing it. Operation in continuous regime, including enzyme regeneration, produced the highest FAME yield (maximum of 86 %). Thus, effectiveness of the regenerating process and efficiency of continuous production of FAME from WCO (up to 576h) were observed. (C) 2019 Published by Elsevier Ltd.
publisher ELSEVIER
issn 2352-4847
year published 2020
volume 6
beginning page 751
ending page 756
digital object identifier (doi) 10.1016/j.egyr.2019.09.062
web of science category Energy & Fuels
subject category Energy & Fuels
unique article identifier WOS:000518455400118
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journal analysis (jcr 2019):
journal impact factor 3.595
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category normalized journal impact factor percentile 54.018
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