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http://hdl.handle.net/10773/35151
Title: | Study of fame production from waste cooking oil: operation in batch and continuous regime with regeneration of enzyme catalyst |
Author: | Sorte, S. Ribeiro, J.P. Coutinho, J. Nunes, M.I. |
Keywords: | Biodiesel Enzyme regeneration FAME Novozyme® 435 Waste cooking oil |
Issue Date: | 2020 |
Publisher: | Elsevier |
Abstract: | This work aimed to: (i) assess the performance of Novozyme® 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 enzymeto-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 96%). Thus, effectiveness of the regenerating process and efficiency of continuous production of FAME from WCO (up to 576h) were observed. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/35151 |
DOI: | 10.1016/j.egyr.2019.09.062 |
Appears in Collections: | CESAM - Artigos |
Files in This Item:
File | Description | Size | Format | |
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S Sorte, JP Ribeiro et al. (2020).pdf | 310.69 kB | Adobe PDF | View/Open |
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