| Autor: |
S. Sorte, J.P. Ribeiro, J.A.P. Coutinho, M.I. Nunes |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Energy Reports, Vol 6, Iss , Pp 751-756 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2352-4847 |
| DOI: |
10.1016/j.egyr.2019.09.062 |
| Popis: |
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 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. Keywords: Biodiesel, Enzyme regeneration, FAME, Novozyme® 435, Waste cooking oil |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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