scholarly journals SYNTHESIS OF SOLID CATALYST FROM DOLOMITE FOR BIODIESEL PRODUCTION USING PALM KERNEL OIL IN AN OPTIMIZATION PROCESS BY DEFINITIVE SCREENING DESIGN

2019 ◽  
Vol 36 (2) ◽  
pp. 979-994 ◽  
Author(s):  
Elijah O. Ajala ◽  
Mary A. Ajala ◽  
Temitope E. Odetoye ◽  
Anuoluwapo T. Okunlola
2021 ◽  
Vol 6 (2) ◽  
pp. 7-15
Author(s):  
T.O. Rabiu ◽  
N.A. Folami ◽  
N.A. Badiru ◽  
N.A. Kinghsley ◽  
B.T. Dare ◽  
...  

The ever-growing concern for the safety of lives and the environment as well as the depletion in fossil fuels reserves across the globe has led to the keen interests of many researchers in the field of renewable energy. This study was therefore undertaken to investigate the trans-esterification optimization process for biodiesel production from palm kernel using response surface methodology. The materials for the trans-esterification processes were palm kernel oil, Methanol and sodium hydroxide. The effects of reaction temperature (oC), catalyst concentration (wt%) and reaction time (min) on the yield were evaluated. The properties of the biodiesel produced showed that it met the ASTM standard for biodiesel. A quadratic polynomial model, Yield (%) = 78.60–3.12A–.62B + 0.00C -0.75AB – 3.50AC + 1.50BC + 2.82A2– 0.18B2 + 1.08C2, was developed that can be used to predict yield of biodiesel at any value of the different parameters investigated. The ANOVA for the model of the biodiesel yield obtained indicates that the models fit well in describing the relationship between the predictor (biodiesel yield) and the factors (methanol to oil ratio, catalyst concentration and reaction time). The optimal trans-esterification conditions were found to be 60°C for temperature, 60minutes for reaction time, 0.878w% of oil as Sodium hydroxide (catalyst) concentration and methanol/oil ratio of 1:6. At these optimal conditions, the biodiesel yield was fond to be 89.32% The generated biodiesel had high cetane number, better engine ignitability and poses lesser pollution problems than petroleum diesel.


2017 ◽  
Vol 26 (3) ◽  
pp. 635-642 ◽  
Author(s):  
S.O. Kareem ◽  
E.I. Falokun ◽  
S.A. Balogun ◽  
O.A. Akinloye ◽  
S.O. Omeike

Author(s):  
Emmanuel Olusola Oke ◽  
Bernard Ibezim Okolo ◽  
Oladayo Adeyi ◽  
John Abiola Adeyi ◽  
Chiamaka Joan Ude ◽  
...  

2019 ◽  
Vol 158 ◽  
pp. 1149-1154 ◽  
Author(s):  
Charles Felix ◽  
Aristotle Ubando ◽  
Cynthia Madrazo ◽  
Sylviana Sutanto ◽  
Phuong Lan Tran-Nguyen ◽  
...  

2021 ◽  
Author(s):  
Francisco G. H. S. Pinto ◽  
Francisco R. Fernandes ◽  
Vinicius P. S. Caldeira ◽  
Heizir F. de Castro ◽  
Luiz Di Souza ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4274
Author(s):  
Senthur Prabu Sabapathy ◽  
Asokan Morappur Ammasi ◽  
Esmail Khalife ◽  
Mohammad Kaveh ◽  
Mariusz Szymanek ◽  
...  

Biodiesel is considered as a key prospective renewable energy source in India. Hence, a study was carried out for the improvement of palm kernel oil biodiesel production using a transesterification process at different molar ratios. This study comprehensively examined all aspects of biodiesel from optimum production to the effect of additives on its combustion behavior. The optimum yield condition was validated with the MINITAB-17 software and analyzed using the Taguchi method. Two different additives, 5% diethyl ether (DEE) and 2000 ppm Butylated hydroxyltoluene (BHT), were also experimented. Engine experiments were conducted at constant speed (1500 rpm) and five different engine loads (0, 25, 50, 75 and 100%) on a single-cylinder direct injection diesel engine. Heat release rate, brake specific fuel consumption, brake thermal efficiency, engine emissions, such as CO, HC, NOx, and smoke opacity were analyzed. The maximum palm kernel oil (PKO) biodiesel yields, obtained at 55 °C, for the KOH and NaOH catalysts were 86.69% and 75.21% at the molar ratio of 6:1. B20BHT combustion showed 4.6% higher brake thermal efficiency (BTE). NOx emission was reduced by 19.4%, compared to the diesel fuel values. DEE resulted in higher CO and HC emissions compared to diesel fuel values by 39.2% and 7.6%, respectively, whereas smoke emission was improved by 11.5%.


2020 ◽  
Vol 5 (5) ◽  
pp. 599-606
Author(s):  
A. D. Okewale ◽  
Millionaire Freeborn Nestor Abowei ◽  
F. O. Agbogun ◽  
C. N. Owabor

The need for the development of simplified kinetics rates expression (-RA) for Vegetable Oils Alkali catalyzed Transesterification processes to enhance biodiesel production motivated this study. The study, therefore aimed at proposing unified simple rate expression that may be a useful prelude to design various reactor types for Alkali Catalyzed Transesterification of palm kernel oil (PKO) and Methanol reactions. The kinetics   rate expression is proposed using simple explicit algebraic technique with the consideration that alkali catalyzed transesterification reaction of palm kernel oil and methanol is a reversible bimolecular reaction. The proposed kinetic reaction rate expression is developed as a function of conversion (XA), reactants and products concentration and reaction rate constants (k1 and k2). The kinetics reaction rate expression obtained is further evaluated   on the basis of reactants and product molar masses and densities. The developed models were simulated using Matlab codes programming techniques. The results for kinetic reaction rates (-RA & -ReA) decreases with decrease in fractional volume change (e) and increase in fractional conversion at constant reaction time. The results were quite compatible with those of inferential laboratory physicochemical characterization reported.


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