Parametric study and optimization of microwave assisted biodiesel synthesis from Argemone Mexicana oil using response surface methodology

Nayak, Milap G.; Vyas, Amish P.

doi:10.1016/j.cep.2021.108665

Cited by 24 publications

(6 citation statements)

References 95 publications

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“…It is postulated that excess catalyst would promote the saponification reaction with oil, causing an adverse effect on the reaction equilibrium due to the alkaline nature of the base catalyst. This is in line with the findings of Nayak et al, where excess base catalyst loading beyond 1.0 wt.% resulted in saponification of feedstock (oil), which negatively impacted the FAME yield [26]. Likewise, biodiesel production was negatively affected in this investigation following an escalation of catalyst loading to 1.2 wt.%.…”

Section: Combined Effects Of Reaction Temperature and Catalyst Loadingsupporting

confidence: 92%

“…Besides, the presence of bubbles during the boiling of methanol limits contact between methanol and triglycerides, thus compromising the FAME yield [25]. Similarly, a reduction in biodiesel yield was reported by Nayak et al beyond the optimum reaction temperature due to the formation of bubbles during the boiling of methanol [26]. However, in the case of the PETG microchannel reactor, which is a closed and continuous system, higher reaction temperatures may be beneficial, contradicting findings of open system biodiesel production in large vessels [27].…”

Section: Effects Of Reaction Temperaturementioning

confidence: 81%

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A Novel PETG Microchannel Reactor for Microwave-Powered Biodiesel Production

Subramaniam,

Wong,

Wong

et al. 2024

Energies

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Biodiesel stands at the forefront as a replacement for fossil diesel in compression ignition engines, particularly in the transportation sector where diesel engines are the primary movers. However, biodiesel production is hampered by poor heat and mass transfer during the transesterification reaction, leading to long production times and high costs due to inefficient energy utilisation. This study targets heat and mass transfer issues during the production of biodiesel via a synergic approach that combines microwave-assisted heating and microfluidics via a polyethylene terephthalate glycol (PETG) microchannel reactor. The transesterification reaction of palm oil and methanol was investigated using a full factorial design of experiments (DOE) method. Biodiesel yield was quantified via gas chromatographic analysis, and the results were optimised using statistical analysis. Optical analysis of slug quantification within the microchannel revealed that small slugs, smaller than 1 mm, accelerated the transesterification reaction. The composite-optimised experimental results, aimed at minimising energy costs and environmental impacts while maximising fatty acid methyl ester (FAME) yield, indicate a reaction temperature of 50 °C, a catalyst loading of 1.0 wt.%, and a 3:1 methanol to oil molar ratio. Regression analysis revealed that the reaction temperature was statistically insignificant when utilising the PETG microchannel reactor. This key finding positively impacts biodiesel production as it relates to significantly reduced energy intensity, costs, and emissions. Overall, this research work paves a pathway toward an energy-efficient and sub-minute rapid transesterification reaction, highlighting the effectiveness of microwave heat delivery and effects of microfluidics via the PETG microchannel reactor in overcoming heat and mass transfer barriers in biodiesel production.

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Section: Combined Effects Of Reaction Temperature and Catalyst Loadingsupporting

confidence: 92%

Section: Effects Of Reaction Temperaturementioning

confidence: 81%

A Novel PETG Microchannel Reactor for Microwave-Powered Biodiesel Production

Subramaniam,

Wong,

Wong

et al. 2024

Energies

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“…The conversion in those studies decreased from 97.5 ± 0.6% at 7 min to 62.9 ± 0.5% at 15 min [ 16 ]. Transesterification is a reversible reaction, hence prolonged reaction time can favour the backward reaction resulting reducing in biodiesel conversion [ 39 ]. Laskar, Gupta [ 40 ] in the study of the utilization waste Mangifera indica peel as a heterogeneous catalyst in biodiesel production from soybean oil concluded that hydrolysis of the methyl ester may occur in the prolonged reaction time [ 40 ].…”

Section: Resultsmentioning

confidence: 99%

Controlled crushing device-intensified direct biodiesel production of Black Soldier Fly larvae

Sitepu

Perangin‐angin

Ginting

et al. 2023

Heliyon

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“…The positive coefficients imply the synergistic effect on increasing the crude lipid yield and moisture loss. On the other hand, the negative sign of the coefficients shows an antagonistic influence on crude lipid yield and moisture loss [32].…”

Section: Yield Of Crude Lipidmentioning

confidence: 98%

Optimization of Drying Parameters for Hermetia illucens Using Oven Drying

2022

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Insects are frequently dried to retain their nutritional quality. The influence of drying temperature and drying time has an effect on the crude lipid yield. The greater moisture loss will lead to a higher lipid yield. Inactivation of larvae by means of freezing followed by oven drying indicates a high amount of free fatty acids. The total fatty acid concentration in Hermetia illucens prepupae was mainly comprised of saturated fatty acids followed by monounsaturated fatty acids and polyunsaturated fatty acids. A substantial amount of lauric acid was discovered and may be beneficial in animal feed. The optimum crude lipid yield and moisture loss temperature were determined.

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Parametric study and optimization of microwave assisted biodiesel synthesis from Argemone Mexicana oil using response surface methodology

Cited by 24 publications

References 95 publications

A Novel PETG Microchannel Reactor for Microwave-Powered Biodiesel Production

A Novel PETG Microchannel Reactor for Microwave-Powered Biodiesel Production

Controlled crushing device-intensified direct biodiesel production of Black Soldier Fly larvae

Optimization of Drying Parameters for Hermetia illucens Using Oven Drying

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