Optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash

Kostić, Danijela A.; Tasić, B Marija; Đalović, G Ivica; Biberdžić, O Milan; Mitrović, M Petar; Stamenković, S Olivera; Veljković, Vlada B.

doi:10.5937/ror1801053k

Cited by 5 publications

(4 citation statements)

References 18 publications

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“…The ANOVA showed that at a confidence level of 95 % only the catalyst loading (B), the reaction time (D), and their interaction (BxD), as well as the squared reaction temperature, catalyst loading, and reaction time (A 2 , B 2 , and D 2 ) were significant model terms (Table 5). Having the highest F-value of 162.37, the reaction time was the most important variable affecting the FAME content, followed by catalyst loading, which agreed with the optimization results of the methanolysis of corn germ oil using corn cobs ash as a catalyst [27]. On the other hand, Kostić et al [20] showed for methanolysis of sunflower oil over palm kernel shell biochar that the reaction temperature and the methanol-to-oil molar ratio were statistically significant for the FAME content while the effect of catalyst loading was statistically insignificant.…”

Section: Statistical Modeling and Optimizationsupporting

confidence: 82%

“…Moreover, methanolysis of various oils was successfully carried out in the presence of husk ashes obtained from different biomass wastes, such as cocoa pod [8,16], coconut [17], and rice [18], walnut kernel [19] and palm kernel [20] shells, mango [21], and tucuma [22] peels ashes. Furthermore, ashes from bark [23], leaves [24,25], whole plants [26], and cobs [27] were used to catalyze biodiesel production. Some ashes were improved before the use as catalysts.…”

Section: Introductionmentioning

confidence: 99%

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Modeling the biodiesel production using the wheat straw ash as a catalyst

Veličković¹,

Avramović²,

Kostić

et al. 2021

Hem Ind

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Wheat straw ash (WSA) was investigated as a new catalyst in biodiesel production from sunflower oil. The catalyst was characterized by temperature-programmed decomposition, X- ray powder diffraction, Hg porosimetry, N2 physisorption, and scanning electron microscopy - energy dispersive X-ray spectroscopy methods. The methanolysis reaction was tested in the temperature range of 55?65?C, the catalyst loading range 10?20 % of the oil weight, and the methanol-to-oil molar ratio range 18 : 1?24 : 1. The reaction conditions of the sunflower oil methanolysis over WSA were optimized by using the response surface methodology in combination with the historical experimental design. The optimum process conditions ensuring the highest fatty acid methyl esters (FAME) content of 98.6 % were the reaction temperature of 60.3?C, the catalyst loading of 11.6 % (based on the oil weight), the methanol-to-oil molar ratio of 18.3 :1, and the reaction time of 124 min. The values of the statistical criteria, such as coefficients of determination (R2 = 0.811, R2 = 0.789, R2 = 0.761) and the mean relative percent deviation (MRPD) value of 10.6 % (66 data) implied the acceptability and precision of the developed model. The FAME content after 4 h of reaction under the optimal conditions decreased to 37, 12, and 3 %, after the first, second, and third reuse, respectively.

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Section: Statistical Modeling and Optimizationsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Modeling the biodiesel production using the wheat straw ash as a catalyst

Veličković¹,

Avramović²,

Kostić

et al. 2021

Hem Ind

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“…In the case of the methanolysis of Bauhinia monandra oil catalyzed by banana peel ash, a positive effect of the methanol-to-oil molar ratio, catalyst amounts, and two-parameter interactions of all factors on FAME content was observed, while the reaction time and the square of reaction time were not statistically significant [20]. Along with the catalyst amount and methanol-tooil molar ratio, the reaction temperature had a significant effect on FAME yield in the methanolysis of Calophyllum inophyllum oil over sugarcane leaf ash as a solid catalyst while the influence of the reaction time was not investigated [15].…”

Section: Analysis Of Variance (Anova)mentioning

confidence: 89%

“…The statistical methods are widely used for modeling and optimizing biodiesel production processes and assessing the statistical significance of the influential process factors (like initial methanol-to-oil molar ratio, catalyst amount, reaction temperature, and time) on the desired response (ester content or yield). The response surface methodology (RSM), combined with the full 3 3 factorial design [19,20], central composite design (CCD) [21], or Box-Behnken design (BBD) [22], has been most frequently applied procedure for the statistical analysis of batch biodiesel production processes. The second-order polynomial equation is commonly used to relate ester content to the process factors.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the used sunflower oil methanolysis catalyzed by hazelnut shell ash

Petkovic¹,

Miladinović²,

Banković–Ilić³

et al. 2021

Adv Techol

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The methanolysis of used sunflower oil catalyzed by hazelnut shell ash was studied to evaluate the statistical significance of the process factors, i.e., the initial methanol-to-oil molar ratio, the catalyst amount, and the reaction time on fatty acid methyl ester (FAME) content and to determine their optimal values ensuring the highest FAME content. The reaction was conducted in a batch reactor at the methanol-to-oil molar ratios of 6:1-18:1, the catalyst amounts of 1-5% (of the oil weight), and the reaction time of 10-50 min. Furthermore, statistical modeling and optimization were performed using a modified second-order polynomial model developed by the response surface methodology in combination with a 33 factorial design with three central points. The analysis of variance showed that all three factors, the two-parameter interaction of the catalyst amount and the reaction time, as well as the quadratic term of the reaction time, had a statistically significant effect on FAME content. The optimum conditions were found to be the methanol-to-oil molar ratio of 10.34:1, the catalyst amount of 5%, and the reaction time of 34 min. The predicted value of FAME content was 99.63%, which agreed well with the experimentally determined FAME content (97.15%).

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Convenient Conversion of Palm Fatty Acid Distillate to Biodiesel via Rice Husk Ash Catalyst

et al. 2021

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Silica-based heterogeneous catalyst derived from rice husk ash (RHA) was used for the transformation of palm fatty acid distillate (PFAD) into biodiesel. The production of the biodiesel from PFAD was conducted via esterification and transesterification employing Huskcatacid and Huskcatbase, respectively. The biodiesel was analyzed from different parameters, i.e., amount of catalyst, oil to methanol ratio, temperature, and reaction times. The outcomes depicted Huskcatacid was efficient for PFAD esterification to produce 91.6% ester with 5 wt% catalysts and 5:1 (MeOH:PFAD), followed by the transesterification using 1 wt% Huskcatbase in 3:1 (MeOH:oil) to generate 99.73% biodiesel with a high percentage of methyl oleate (57.86%) and methyl palmitate (34.43%). Huskcatacid and Huskcatbase depicted a high surface area (7.362 m 2 /g and 14.493 m 2 /g) and high porosity (2.726 × 10 −3 cm 3 /g and 4.985 × 10 −3 cm 3 /g), respectively, that contributed to the efficient esterification and the easy separation of glycerol. The PFAD-derived biodiesel was tested on the Megatech®-Mark III engine and confirmed the proportional torque (ɽ) increment with the loading of B100 biodiesel. Rice husk showed promising outcomes as solid-support heterogeneous catalysts and the production of value-added products to reduce the agricultural waste management issues.

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Optimization of biodiesel production from corn oil by methanolysis catalyzed by corn cob ash

Cited by 5 publications

References 18 publications

Modeling the biodiesel production using the wheat straw ash as a catalyst

Modeling the biodiesel production using the wheat straw ash as a catalyst

Optimization of the used sunflower oil methanolysis catalyzed by hazelnut shell ash

Convenient Conversion of Palm Fatty Acid Distillate to Biodiesel via Rice Husk Ash Catalyst

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