scholarly journals Transesterification Optimization using Calcium Oxide from Karanja Oil and Results Validation by ANN

2021 ◽  
Vol 9 ◽  
Author(s):  
Satish A Patil ◽  
◽  
Dr. Racyya. R. Arakerimath ◽  

Biodiesel is obtained using the transesterification process from renewable oils obtained from vegetable and animal fats. The transesterification process is used to produce biodiesel from Karanja oil with heterogeneous catalyst Calcium Oxide (CaO). In this research work, the Taguchi method has used for the optimization of the transesterification process using five input parameters and five levels for the development of orthogonal arrays. Experiments have conducted as per the L25 orthogonal array developed by Taguchi and yields obtained have been noted. The results obtained by experimentation have been analyzed by Minitab software. The results from Minitab have compared with the results obtained using ANN script analytically as well as graphically. The maximum value of yield has 88% at optimum parametric value namely molar ratio 20% with the addition of 3% Calcium oxide catalyst at process temperature 65ºC for 60 minutes reaction time and agitation speed 600 rpm.

2019 ◽  
Vol 15 (2) ◽  
pp. 131-138
Author(s):  
Po Kim Lo ◽  
Hor Yan Phin

The purpose of this research was to study the effect of reaction temperature, reaction time and dimethyl carbonate:glycerol (DMC:Gly) molar ratio on the conversion of glycerol and yield of glycerol carbonate. The reaction was further optimized with central composite design (CCD), 15 runs of transesterification reaction were conducted. Meanwhile, the calcined calcium oxide catalyst was fixed at catalyst/glycerol molar ratio at 0.06 while the stirring rate was maintained at 1000 rpm for every runs. ANOVA results indicated that reaction temperature and reactants ratio (DMC:Gly) influenced the yield significantly. Synergy effect of reaction temperature with reaction time and reaction temperature with DMC:Gly molar ratio seem to have greater significance on the conversion instead of a single parameter. Under optimization studies, the maximum possible conversion and yield were 100% and 96.36% respectively which could be accomplished at 60.16 °C reaction temperature with 1.19 hour reaction time and 3.04 DMC:Gly molar ratio. Compared to the highest conversion (96.22%) and yield (95.83%) achieved before the optimization with reaction carried out at 60 °C, after 1.5 hours and at 3:1 DMC:Gly molar ratio, the optimization had resulted in the higher conversion with moderate reaction temperature and shorter reaction time.


2014 ◽  
Vol 554 ◽  
pp. 500-504 ◽  
Author(s):  
Farid Nasir Ani ◽  
Ahmed Bakheit Elhameed

This paper investigated the three critical reaction parameters including catalyst concentration, microwave exit power and reaction time for the transesterification process of jatropha curcas oil using microwave irradiation. The work is an attempt to reduce the production cost of biodiesel. Similar quantities of methanol to oil molar ratio 6:1 and calcium oxide as a heterogeneous catalyst were used. The results showed that the best yield percentage 96% was obtained using 300W microwave exit power, 8 %wt CaO and 7 min. The methyl ester FAME obtained was within the standard of biodiesel fuel.


2017 ◽  
Vol 2 (1) ◽  
pp. 1-10 ◽  
Author(s):  
O. S. Aliozo ◽  
L. N. Emembolu ◽  
O. D. Onukwuli

Abstract In this research work, melon oil was used as feedstock for methyl ester production. The research was aimed at optimizing the reaction conditions for methyl ester yield from the oil. Response surface methodology (RSM), based on a five level, four variable central composite designs (CCD)was used to optimize and statistically analyze the interaction effect of the process parameter during the biodiesel production processes. A total of 30 experiments were conducted to study the effect of methanol to oil molar ratio, catalyst weight, temperature and reaction time. The optimal yield of biodiesel from melon oil was found to be 94.9% under the following reaction conditions: catalyst weight - 0.8%, methanol to oil molar ratio - 6:1, temperature - 55°C and reaction time of 60mins. The quality of methyl ester produced at these conditions was within the American Society for Testing and Materials (ASTM D6751) specification.


2018 ◽  
Vol 280 ◽  
pp. 346-352
Author(s):  
Zuraida Wan ◽  
Bassim H. Hameed ◽  
N. Mohammad Nor ◽  
Nur Alwani Ali Bashah

In this study, methyl ester (ME) was produced by transesterification of waste cooking palm oil (WPO) using activated carbon supported calcium oxide as a solid base catalyst (CaO/AC). Process optimization using response surface methodology (RSM) was applied to study the effect of reaction time, molar ratio of methanol to oil, reaction temperature and catalyst amount to produce highest ME content. The optimum reaction condition was at 5.5 wt% catalyst amount, 170 °C temperature, 15:1 methanol to oil molar ratio and 2 h 22 min reaction time. The predicted and experimental ME content were found to be 80.02% and 77.32%, respectively.


2020 ◽  
Vol 997 ◽  
pp. 93-101
Author(s):  
Mohd Nurfirdaus Mohiddin ◽  
A.A. Saleh ◽  
Amarnadh N.R. Reddy ◽  
Sinin Hamdan

Heterogeneous catalyst has been viewed as a promising catalyst for biodiesel production. This study employed Turritella terebra (TT) shell as a source for synthesizing heterogeneous CaO catalyst for biodiesel production via transesterification by utilizing chicken fat as a feedstock. The TT shell CaO catalyst was characterized and its catalytic performance was studied. The spectrographic methods that include FTIR, SEM, PSA, and BET-BJH were employed for characterization of the synthesized CaO. The TT shell CaO catalyst optimally produced chicken fat biodiesel (CFB) with reaction parameters at catalyst concentration of 4 wt%, chicken fat to methanol molar ratio of 1:12, reaction temperature of 60°C, and reaction time of 90 min. The optimal yield was 94.03% and the TT shell CaO catalyst still yield 79.19% of CFB on the fifth cycle of reaction. This study has implied that TT shell is a feasible and attractive renewable source of heterogeneous CaO catalyst for biodiesel production.


Author(s):  
O. A. Aworanti ◽  
A. O. Ajani ◽  
S. E. Agarry ◽  
K. A. Babatunde ◽  
O. D. Akinwunmi

In this research work, the optimum process variables (catalyst, methanol to oil ratio and reaction time) for transesterification of palm oil sludge (POS) to biodiesel were studied. The transesterification process was carried by mixture of palm oil sludge, methanol and catalyst with the help of magnetic stirrer at 300 rpm and at temperature of 60ºC. The catalyst used for the process was potassium hydroxide (KOH). One-Factor-at-A-Time was used to select the possible optimum levels of process variable that gives high biodiesel yield. The study was evaluated by five levels  of methanol-to-oil ratio (1:1 – 12:1), catalyst (0.1- 2%) and reaction time (30 – 150 min).The optimum process variables for transesterification of palm oil sludge (POS) to achieved maximum biodiesel yield  were found to be methanol to oil molar ratio of 12:1, catalyst loading of 1.5wt% and reaction time of 30 min. At this optimum conditions the maximum biodiesel yield was 61.2%. The biodiesel produced from transesterification of palm oil sludge was characterized in order to determine the properties of the product. The density of POS is 857.0 kg/m3, kinematic viscosity of 5.38 mm2/s, flash point of 180°C, pour point of -5°C, and Acid value of 0.17 mgKOH/g. The biodiesel produced from transesterification of palm oil sludge meets the EN 14214 and ASTM 6751 standard. Thus, this study will be helpful to determine an efficient and economical procedure for biodiesel production from non-edible raw materials with high free fatty acid.


2020 ◽  
Vol 2 (1) ◽  
pp. 92-97
Author(s):  
Jamilu Usman ◽  
Bashar Abdullahi Hadi ◽  
Buhari Idris ◽  
Umar Musa Tanko ◽  
Bashar Usman ◽  
...  

Biodiesel is an alternative diesel fuel consisting of the alkyl monoesters of fatty acids from vegetable oils or animal fats. Biodiesel is a promising alternative fuel derived from animal fats or vegetable oil through transesterification with methanol. Base catalyzed transesterification is the most commonly used technique as it is the most economical process. Presently, a lot of heterogeneous catalysts have been formulated that are more effective than the homogeneous catalysts. CaO/Al2O3 was synthesized using incipient wetness impregnation method. The biodiesel was developed and optimized using Box-behnken response surface methodology (RSM) design provided using MINITAP-17 statistical software. The four independent variables considered are: reaction time, methanol to oil ratio, reaction temperature and catalyst concentration. The response chosen was fatty acid methyl ester (FAME) yields which were obtained from the reaction. The result from analysis of variance (ANOVA) showed a satisfactory result. Moreover, the input variables showed greater significance on the response which are reaction time and temperature base on F and P-value. The statistical models developed for predicting biodiesel yield revealed a significant agreement between the experimental and predicted values (R = 0.9686). An optimum methyl ester yield of 93.29 % was achieved with optimal conditions of methanol/oil molar ratio of 6:1, temperature of 600C, reaction time of 120 min and catalyst concentration of 1.0 wt%. The properties of the biodiesel produced also falls within the range prescribed by ASTM standard


2019 ◽  
Vol 8 (4) ◽  
pp. 5555-5558

Biodiesel is renewable and environmental friendly fuel which has the potential to obtain considerable performance of engine. The aim of this work is to optimize the transesterification process for production of biodiesel using Taguchi method. In this experimental work, the Karanja oil transesterification is done to produce biodiesel using Al2O3 as a heterogeneous catalyst, using five parameters and five levels. Orthogonal array obtained by Minitab to analyze the interaction effect by using Taguchi method for the transesterification reaction. The parameters such as molar ratio of methanol to oil, catalyst concentration, reaction temperature, reaction time and stirring speed are effect on biodiesel yield. Effect of these parameters is investigated on small scale. Experimental yield obtained at optimal conditions i.e. are 20:1 molar ratio of methanol to oil, addition of 3% Al2O3 catalyst, reaction temperature 65ºC, reaction time 60 min and 600 rpm stirring speed is 80%.


2012 ◽  
Vol 60 (2) ◽  
pp. 203-207 ◽  
Author(s):  
Hossain Mohammad Imran ◽  
Arafat H. Khan ◽  
M. Shahinul Islam ◽  
R.S. Niher ◽  
Asaduzzaman Sujan ◽  
...  

An experimental process for the production of biodiesel using karanja (Pongamia pinnata) seeds as a raw material has been studied. This process involved transesterification of karanja oil with methanol in the presence of a catalyst (NaOH), to yield biodiesel as the main product and glycerin as by-product. In this research work, free fatty acid (FFA) of Karanja oil was determined and it was found less than 5%. As a result, one step transesterification was carried out. Oil to methanol molar ratio (6:1 to 12:1), variation (0.5% to 1.6% wt of oil) of Catalyst (NaOH) concentration was determined. Base-catalyzed transesterification converted karanja oil into biodiesel and glycerol using 1% NaOH as alkaline catalyst at 60-65°C. This study revealed the maximum yield of biodiesel up to 85% with methanol to oil ratio 1:9 and for 1.5 hr reaction at 65°C. Co-ignition of biodiesel with commercial diesel was also evaluated and it was found that diesel engine run smoothly in the ratio of commercial diesel to biodiesel was 7:3.DOI: http://dx.doi.org/10.3329/dujs.v60i2.11506 Dhaka Univ. J. Sci. 60(2): 203-207, 2012 (July)


Biodiesel is renewable and environmental friendly fuel which has the capable to gain comparable engine performance. In this experimental study, Karanja oil synthesized by using Transesterification process. Transesterification of Karanja oil to biodiesel using SiO2 as a heterogeneous catalyst is studied using five different parameters and levels each. Minitab is used to fix the orthogonal arrays and Taguchi method is used to analyze the interaction effect for the transesterification reaction. The five different parameters responsible for biodiesel yield are molar ratio of methanol to oil, catalyst concentration, reaction temperature, reaction time and stirring speed. Effect of these parameters has studied on small scale. The biodiesel yield obtained experimentally at optimum conditions are 20% methanol to oil molar ratio, 3% SiO2 catalyst addition, 65ºC reaction temperature, 180 min reaction time and 500 rpm stirring speed is 77%.


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