Transesterification of used frying oil by activated banana peels waste catalyst for biodiesel production

Author(s):  
Zurena Mohd Salleh ◽  
Noor Yahida Yahya ◽  
Muhammad Amirul Syafiq Nasarudin ◽  
Dea Natasha Herman
Tecno-Lógica ◽  
2009 ◽  
Vol 13 (1) ◽  
pp. 19-24
Author(s):  
Rosana De Cassia de Souza Schneider ◽  
Robson Mocellin ◽  
Marcos Moura Da Trindade ◽  
Luciano Roni Silva Lara ◽  
Marco Flores Ferrão

RESUMO: Biodiesel é derivado de fontes renováveis e reduz significativamente as emissões atmosféricas. Pode ser obtido de diversos processos, como a alcoolise. Neste trabalho, o biodiesel foi produzido através da alcoolise do óleo de fritura usado de indústrias de alimentação. Um planejamento experimental foi utilizado e os produtos de reação foram analisados por cromatografia gasosa (CG) espectroscopia na região do infravermelho com acessório de reflexão total atenuada horizontal (IV-HATR) e análise exploratória por análise de componentes principais (PCA) e análise hierárquica de grupos (HCA). De acordo com as condições analisadas obteve-se alta conversão em ésteres metílicos. Por IV-HATR, a conversão máxima foi observada em condições experimentais de temperatura ( 50 e 60°C), concentração de catalisador (0,6 e 1,2%) e a 1:8 de relação molar entre óleo e metanol. Também foi possível discriminar por análise quimiométrica, 4 grupos no planejamento experimental e determinar as melhores condições para a produção de biodiesel de óleo de fritura usado.


2013 ◽  
Vol 20 (1) ◽  
pp. 322-328 ◽  
Author(s):  
Dyneshwar Ghayal ◽  
Aniruddha B. Pandit ◽  
Virendra K. Rathod

2020 ◽  
Vol 9 (1) ◽  
pp. 1-11
Author(s):  
Agus Haryanto ◽  
Amieria Citra Gita ◽  
Tri Wahyu Saputra ◽  
Mareli Telaumbanua

This research aims to study the first-order kinetics of biodiesel production from used frying oil (UFO) through transesterification with methanol. Used frying oil was collected from fried peddlers around the campus of the University of Lampung. Technical grade methanol and NaOH catalyst were purchased from a local chemical supplier. The experiment was carried out with 100 ml of UFO at various combinations of oil to methanol molar ratio (1:4, 1:5, and 1:6), reaction temperatures(30 to 55oC, the ramping temperature of 5o C), and reaction time of 0.25 to 10 minutes. First-order kinetic was employed using 126 data pairs (87.5%). The acquired kinetic model was validated using 18 data sets (12.5%) observed at a reaction time of eight min. Results show that biodiesel yield was increased with reaction time, its molar ratio, and temperature. The maximum return of 78.44% was achieved at 55oC and molar ratio of 1:6. The kinetic analysis obtains the reaction rate constant (k) in the range of 0.045 to 0.130. The value of k increases with the reaction temperature and molar ratio. The analysis also reveals the average activation energy (Ea) of the UFO transesterification reaction with methanol and NaOH catalyst to be 21.59 kJ/mol. First-order kinetic is suitable to predict biodiesel yield from UFO because of low %RMSE (3.39%) and high R2 (0.8454


2016 ◽  
Vol 41 (45) ◽  
pp. 21022-21029 ◽  
Author(s):  
Fatiha Ouanji ◽  
Mariam Khachani ◽  
Mustapha Boualag ◽  
Mohamed Kacimi ◽  
Mahfoud Ziyad

2014 ◽  
Vol 92 (2) ◽  
pp. 179-185 ◽  
Author(s):  
Mehdi Atapour ◽  
Hamid-Reza Kariminia ◽  
Parivash Moslehi Moslehabadi

2014 ◽  
Vol 67 (3) ◽  
Author(s):  
Roslina Rashid ◽  
Nor Athirah Zaharudin ◽  
Ani Idris

Hydrolysis of used-frying oil had been carried out by using an immobilized lipase from Candida rugosa in solvent-free system. Used-frying oil was considered as the substrate in this study due to abundance amount of used-frying oil present in Malaysia as its disposal problem has become a very serious environmental issue.  The high free fatty acids (FFA) content in used-frying oil has raised the interest for the utilization of this waste into valuable products. Even though used-frying oil is not suitable for human consumption and being extensively used for the biodiesel production, FFA from used-frying oil could be utilized to produce various types of non-edible products. Effects of enzyme loading, water content, reaction temperature, buffer pH and agitation speeds on the hydrolysis process were investigated. The experiments were conducted at constant reaction time of 3 hours. It was found that the effect of variables were very significant on the hydrolysis process.  The hydrolysis process achieved the highest yield of fatty acids at enzyme concentration of 1.5% (w/v), buffer volume to oil volume ratio of 3:1, temperature of 40˚C, pH of 7, and agitation speed of 220 rpm. Under these described conditions, it was found that nearly 97.15±1.31% of hydrolysis degree was achieved with 2533.33±26.67 µmol/ml of fatty acids was produced.


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