Optimization of biodiesel production by alkali-catalyzed transesterification of used frying oil

2014 ◽  
Vol 92 (2) ◽  
pp. 179-185 ◽  
Author(s):  
Mehdi Atapour ◽  
Hamid-Reza Kariminia ◽  
Parivash Moslehi Moslehabadi
Keyword(s):  
Frying Oil ◽  
Biodiesel Production ◽  
Used Frying Oil

scholarly journals USED FRYING OIL BIODIESEL PRODUCTION: EXPERIMENTAL FACTORIAL DESIGN AND MULTIVARIATE ANALYSIS

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
Keyword(s):  
Multivariate Analysis ◽  
Factorial Design ◽  
Frying Oil ◽  
Biodiesel Production ◽  
Used Frying Oil

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.

scholarly journals Optimization of biodiesel production in a hydrodynamic cavitation reactor using used frying oil

2013 ◽  
Vol 20 (1) ◽  
pp. 322-328 ◽  
Author(s):  
Dyneshwar Ghayal ◽  
Aniruddha B. Pandit ◽  
Virendra K. Rathod
Keyword(s):  
Frying Oil ◽  
Hydrodynamic Cavitation ◽  
Biodiesel Production ◽  
Used Frying Oil

scholarly journals Kinetics of Biodiesel Synthesis Using Used Frying Oil through Transesterification Reaction

2020 ◽  
Vol 9 (1) ◽  
pp. 1-11
Author(s):  
Agus Haryanto ◽  
Amieria Citra Gita ◽  
Tri Wahyu Saputra ◽  
Mareli Telaumbanua
Keyword(s):  
Reaction Time ◽  
Frying Oil ◽  
Transesterification Reaction ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Order Kinetic ◽  
Used Frying Oil ◽  
First Order ◽  
Biodiesel Synthesis ◽  
Kinetics Of

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

Large-scale biodiesel production from Moroccan used frying oil

2016 ◽  
Vol 41 (45) ◽  
pp. 21022-21029 ◽  
Author(s):  
Fatiha Ouanji ◽  
Mariam Khachani ◽  
Mustapha Boualag ◽  
Mohamed Kacimi ◽  
Mahfoud Ziyad
Keyword(s):  
Large Scale ◽  
Frying Oil ◽  
Biodiesel Production ◽  
Used Frying Oil

Enzymatic Hydrolysis of Used-Frying Oil Using Candida rugosa Lipase

2014 ◽  
Vol 67 (3) ◽  
Author(s):  
Roslina Rashid ◽  
Nor Athirah Zaharudin ◽  
Ani Idris
Keyword(s):  
Fatty Acids ◽  
Immobilized Lipase ◽  
Candida Rugosa ◽  
Frying Oil ◽  
Biodiesel Production ◽  
Human Consumption ◽  
Free System ◽  
Used Frying Oil ◽  
Hydrolysis Process ◽  
Hydrolysis Of

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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