scholarly journals An Improvement in Biodiesel Production from Waste Cooking Oil by Applying Thought Multi-Response Surface Methodology Using Desirability Functions

Energies ◽  
2017 ◽  
Vol 10 (1) ◽  
pp. 130 ◽  
Author(s):  
Marina Corral Bobadilla ◽  
Rubén Lostado Lorza ◽  
Rubén Escribano García ◽  
Fátima Somovilla Gómez ◽  
Eliseo Vergara González
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Desirability Functions ◽  
Cooking Oil

scholarly journals Optimization of Ostrich Eggshell Catalyst in Transesterification Using Waste Cooking Oil via Response Surface Methodology

2018 ◽  
Vol 5 (2) ◽  
pp. 277-285 ◽  
Author(s):  
Yie Hua Yie Tan ◽  
Mohammad Omar Abdullah ◽  
Jibrail Kansedo ◽  
Agus Saptoro ◽  
Cirilo Nolasco Hipolito
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Reaction Temperature ◽  
Catalyst Concentration ◽  
Waste Cooking Oil ◽  
Operating Conditions ◽  
Transesterification Reaction ◽  
Biodiesel Production ◽  
Cooking Oil ◽  
Ostrich Eggshell

In this research work, waste cooking oil biodiesel production was optimized using a design of experiment (DOE) approach: response surface methodology (RSM), based on a five level, three variables central composite design (CCD) to investigate the interaction effects of the different combination of transesterification reaction variables such as catalyst concentration, reaction temperature and time, using ostrich eggshell CaO base catalyst. A quadratic polynomial equation of the response, biodiesel yield was attained via multiple regression analysis to predict the relation between yield and the chosen variables. The results showed that the temperature and time are the most important process parameters on the biodiesel production. The optimal operating conditions for the transesterification reaction have been found to be: reaction temperature of 67 °C, alcohol/oil molar ratio of 10:1 (fixed parameter), catalyst concentration of 1.97 % w/w and reaction time of 1.77 h. The predicted biodiesel yield was about 99.67% under the optimal conditions through the ANOVA numerical method.

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