Switchable Solvent-Catalyzed Direct Transesterification of Insect Biomass for Biodiesel Production

Nguyen, Hoang Chinh; Nguyen, My Linh; Liang, Shih-Hsiang; Su, Chia‐Hung; Wang, Fuming

doi:10.1007/s12155-019-10085-8

Cited by 15 publications

(12 citation statements)

References 43 publications

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“…The result indicated that biodiesel conversion enhanced from 84.3% to 91.9% with an increase in the Li 4 SiO 4 concentration from 3% to 6% (Figure 6). This result corresponds to other studies, indicating that higher catalyst concentrations promote the reaction rate 38,39 . This is because increasing catalyst concentration increases the contact opportunity of the reactant and catalyst and the number of active sites available for the interaction between the reactants, thus promoting the reaction conversion 40 .…”

Section: Resultssupporting

confidence: 90%

Sol‐gel synthesized lithium orthosilicate as a reusable solid catalyst for biodiesel production

Nguyen

Pan

et al. 2020

Intl J of Energy Research

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Summary Lithium orthosilicate (Li4SiO4) is a promising solid catalyst for biodiesel synthesis. However, Li4SiO4 is traditionally prepared by a solid‐state reaction, which results in the unstable activity for the reaction. In the present study, Li4SiO4 was successfully prepared using a simple sol‐gel method and employed as an efficient solid alkali catalyst for biodiesel synthesis. The molar ratio of precursors and calcination temperature were optimized for the synthesis of Li4SiO4 by using the sol‐gel method. The physical and chemical properties were determined using X‐ray diffraction, scanning electron microscopy, laser diffraction particle size, and thermogravimetric analysis. The as‐prepared Li4SiO4 catalyst had much smaller particle size, pore volume, and pore size, but higher surface area and basicity than Li4SiO4 catalyst prepared by the solid‐state reaction. It was then used to transesterify methanol and soybean oil into biodiesel. The effect of reaction factors (reaction time from 1 to 3 hours, catalyst concentration from 3 to 9%; molar ratio of methanol to oil from 6:1 to 18:1, and temperature from 55°C to 75°C) on the Li4SiO4‐catalyzed transesterification was systematically examined. The highest biodiesel conversion of 91% was reached under the following conditions: reaction time of 2 hours, Li4SiO4 concentration of 6%, 12:1 methanol:oil molar ratio, and temperature of 65°C. Notably, Li4SiO4 could be efficiently reused for at least 10 times without significant loss of its activity; this suggests that the sol‐gel synthesized Li4SiO4 is a potential solid alkali catalyst for biodiesel synthesis.

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Section: Resultssupporting

confidence: 90%

Sol‐gel synthesized lithium orthosilicate as a reusable solid catalyst for biodiesel production

Nguyen

Pan

et al. 2020

Intl J of Energy Research

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“…Conforme é ilustrado na figura 12, o gráfico representa os dados desde 1980 até 2022, onde são analisados os anos em que houve mais artigos encontrados de acordo com a string utilizada. SU, 2019;NGUYEN, 2020;LEE, 2022).…”

Section: Resultsunclassified

“…Os trabalhos selecionados têm métodos diferentes para a produção de biodiesel, como a transesterificação, solventes, catalisadores e entre outras formas (HE, 2022;TANG, 2022;NGUYEN, 2020). Estes métodos mencionados têm a função de tentar produzir o biodiesel com a melhor qualidade possível, assim com a utilização desses mecanismos químicos consegue-se precisar a extração dos lipídios, e dessa forma transformando em biodiesel.…”

Section: Resultsunclassified

Cultivo De Larvas De Mosca Soldado Negro Utilizando Resíduos Alimentares Para a Produção De Biodiesel: Revisão Sistemática Da Literatura

Viana¹,

Matulovic²,

Neto³

et al. 2023

RECIMA21

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O trabalho tem como objetivo a realização de uma Revisão Bibliográfica Sistemática, para conseguir compreender as características da larvas-mosca soldado negro (BSFL) e qual a melhor maneira conseguir um biodiesel com qualidade desejável. Foram utilizadas 4 bases de dados para procurar os melhores artigos possíveis para o presente trabalho, e o StArt foi o software escolhido, onde foram realizadas as etapas de seleção e extração de dados, em que 236 artigos foram selecionados e 30 foram extraídos como artigos essenciais para o desenvolvimento da pesquisa. No final do trabalho, foi possível observar que a produção e a extração de biodiesel da BSFL podem acontecer de diversas formas, assim sendo, um ambiente de estudo muito amplo para a produção de biodiesel com a utilização da BSFL.

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“…To conclude, for extraction of FAMEs, 12 mL of methanol is a suitable amount that can be used in the transesterification due to the highest total FAMEs obtained followed by 14 mL and 10 mL. Research by Nguyen et al 46 found that methanol was preferable to other types of alcohol because of its greater reactivity and lower cost. Furthermore, the more FAME components that can be produced, the better is the solvent.…”

Section: Fame Composition Of Extraction Transesterificationmentioning

confidence: 98%

Transesterification method of microalgae biomass to produce fatty acid methyl esters

Yasin

Aziz

Azmai

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDThis study investigated the effect of different solvents on the production of fatty acid methyl esters (FAMEs) from Chlorella vulgaris using two different methods of transesterification: direct transesterification (d‐trans) and extraction transesterification (ext‐trans). Different solvents were expected to lead to different amounts of FAMEs. Two solvents (methanol and ethanol) with volumes of each of 10, 12 and 14 mL were selected to produce higher amounts of FAMEs.RESULTSThe findings indicate that the highest amounts of palmitic and palmitoleic acids were extracted in 12 mL of methanol, but none of the components of FAMEs was discovered in ethanol when FAMEs were produced using d‐trans. It is shown that FAMEs that are extracted by methanol contain more components as compared to FAMEs extracted by ethanol based on gas chromatography–mass spectrometry analysis. Overall, the highest amount of FAMEs was produced when extracted using 12 mL of methanol for both methods. For ext‐trans, palmitic acid was found in all components of FAMEs that were extracted using both solvents.CONCLUSIONSThe results indicate that d‐trans showed a higher FAME amount than ext‐trans which is explained by the presence of free fatty acids and glycerides that resulted in higher yield of FAMEs in the d‐trans process. Overall, dry biomass is the best substrate for the d‐trans process to produce a higher amount of FAMEs than wet biomass because directly transesterified algal biomass, including water, resulted in losses of FAME composition. © 2023 Society of Chemical Industry (SCI).

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Switchable Solvent-Catalyzed Direct Transesterification of Insect Biomass for Biodiesel Production

Cited by 15 publications

References 43 publications

Sol‐gel synthesized lithium orthosilicate as a reusable solid catalyst for biodiesel production

Sol‐gel synthesized lithium orthosilicate as a reusable solid catalyst for biodiesel production

Cultivo De Larvas De Mosca Soldado Negro Utilizando Resíduos Alimentares Para a Produção De Biodiesel: Revisão Sistemática Da Literatura

Transesterification method of microalgae biomass to produce fatty acid methyl esters

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