CaO loaded with Sr(NO3)2 as a heterogeneous catalyst for biodiesel production from cottonseed oil and waste frying oil

2013 ◽  
Vol 3 (3) ◽  
pp. 169-177 ◽  
Author(s):  
G. Anastopoulos ◽  
G. S. Dodos ◽  
S. Kalligeros ◽  
F. Zannikos
2015 ◽  
Vol 89 ◽  
pp. 665-671 ◽  
Author(s):  
Gabriel O. Ferrero ◽  
Manuel F. Almeida ◽  
Maria C.M. Alvim-Ferraz ◽  
Joana M. Dias

RSC Advances ◽  
2014 ◽  
Vol 4 (96) ◽  
pp. 54109-54114 ◽  
Author(s):  
S. Niju ◽  
K. M. Meera S. Begum ◽  
N. Anantharaman

A laboratory scale continuous flow jacketed reactive distillation (RD) unit was developed to evaluate the performance of calcium oxide (CaO) derived from egg shells as a heterogeneous catalyst for transesterification of waste frying oil.


2020 ◽  
Vol 10 (10) ◽  
pp. 3566
Author(s):  
Mary Angélica Ferreira Vela ◽  
Juan C. Acevedo-Páez ◽  
Nestor Urbina-Suárez ◽  
Yeily Adriana Rangel Basto ◽  
Ángel Darío González-Delgado

The search for innovation and biotechnological strategies in the biodiesel production chain have become a topic of interest for scientific community owing the importance of renewable energy sources. This work aimed to implement an enzymatic transesterification process to obtain biodiesel from waste frying oil (WFO). The transesterification was performed by varying reaction times (8 h, 12 h and 16 h), enzyme concentrations of lipase XX 25 split (14%, 16% and 18%), pH of reaction media (6, 7 and 8) and reaction temperature (35, 38 and 40 °C) with a fixed alcohol–oil molar ratio of 3:1. The optimum operating conditions were selected to quantify the amount of fatty acid methyl esters (FAMEs) generated. The highest biodiesel production was reached with an enzyme concentration of 14%, reaction time of 8 h, pH of 7 and temperature of 38 °C. It was estimated a FAMEs production of 42.86% for the selected experiment; however, best physicochemical characteristics of biodiesel were achieved with an enzyme concentration of 16% and reaction time of 8 h. Results suggested that enzymatic transesterification process was favorable because the amount of methyl esters obtained was similar to the content of fatty acids in the WFO.


2018 ◽  
Vol 13 (1) ◽  
pp. 37-47 ◽  
Author(s):  
Adeyinka S. Yusuff ◽  
Olalekan D. Adeniyi ◽  
Sarafa O. Azeez ◽  
Moses A. Olutoye ◽  
Uduak G. Akpan

2013 ◽  
Vol 7 (2) ◽  
pp. 229-232
Author(s):  
Achanai Buasri ◽  
Nattawut Chaiyut ◽  
Vorrada Loryuenyong ◽  
Kulsucha Pin-Ngern ◽  
Nattaporn Tonprasert ◽  
...  

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