Application of Simultaneous Oil Extraction and Transesterification in Biodiesel Fuel Synthesis: A Review

Makarevičienė, Violeta; Sendžikienė, Eglė; Gumbytė, Milda

doi:10.3390/en13092204

Cited by 22 publications

(11 citation statements)

References 71 publications

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“…Within the latter, still fewer were performed on transesteri cation in situ from edible oil seeds. The results published so far using an in situ transesteri cation with soybeans and basic catalysis required several hours to complete the transesteri cation reaction [37][38][39][40]. In our case, using a concentration of 0.5 M NaOH, a solvent/seed molar ratio of 638/1, a one-minute reaction time in the presence of an ultrasonic eld of 20 kHz frequency, and a calorimetric power of 106 W, we have achieved a conversion rate greater than 99%.…”

Section: Analysis Of Fatty Acids In Oil and Biodieselmentioning

confidence: 60%

“…With maceration, approximately 40% of the soybean oil was transferred to the methanol phase, and the methyl ester content of this oil reached 55% for 3 hours reaction time and ultrasonic absence. In a more recent work, Haas and Scott [38,39], using dry akes of soybean, achieved an optimal transesteri cation in reactions containing 5g of akes and 12mL of 0.10 N NaOH in methanol, 10 hours of reaction time and the absence of ultrasound. More recently, Tuntiwiwattanapun et al [40] showed that Isopropanol is an effective solvent for use in soybean oil extraction.…”

Section: Samplementioning

confidence: 99%

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Simultaneous Oil Sono-Extraction And Sono-Transesterification (In Situ) Of Soybean And Sunflower Seeds For The Production Of Biodiesel

Reyman¹,

Almudena²

2020

Preprint

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The cost of biodiesel production could be reduced by applying a simultaneous oil extraction and transesterification process (in situ). In situ sono-transesterification to allow direct production of biodiesel from soybean and sunflower seeds are presented in this study. All experiments were conducted using ultrasound (20kHz, 106W). In the sunflower case, the results showed a higher yield of extraction (94%) for a 1/5 (g/mL) ratio and one minute of sonication. In the soybean case, the extraction process is less efficient, reaching only 59% of the oil contained in the seed for a soybean/n-hexane ratio of 1/10 (g/mL) and one minute of sonication. Parameters such as the methanol/oil ratio, reaction time and catalyst concentration in the in situ sono-transesterification process of these vegetable seeds were also optimised in this study. In both cases, a percentage of conversion to biodiesel greater than 99% was achieved with just one minute of sonication.

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Section: Analysis Of Fatty Acids In Oil and Biodieselmentioning

confidence: 60%

Section: Samplementioning

confidence: 99%

Simultaneous Oil Sono-Extraction And Sono-Transesterification (In Situ) Of Soybean And Sunflower Seeds For The Production Of Biodiesel

Reyman¹,

Almudena²

2020

Preprint

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“…Methanol is the most frequently utilized alcohol in in situ and conventional transesterification processes while ethanol, propanol and butanol are less frequently used 43 . The transesterification process in 12 mL of methanol led to a greater amount of palmitic acid, 0.6137 mg g −1 , as compared to 10 and 14 mL which gave 0.1790 and 0.3590 mg g −1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

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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“…In situ transesterification involves one step of direct extraction and transesterification, in which alcohol acts as solvent extraction and transesterification reagent. In situ transesterification, commonly termed reactive extraction has the advantages of reducing the processing time and the amount of solvent [263][264][265]. In addition, it is environmentally benign since hazardous air pollutants, such as hexane, can be avoided [266].…”

Section: In Situ Transesterificationmentioning

confidence: 99%

Current State and Perspectives on Transesterification of Triglycerides for Biodiesel Production

Salaheldeen

Mariod²,

Aroua

et al. 2021

Catalysts

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Triglycerides are the main constituents of lipids, which are the fatty acids of glycerol. Natural organic triglycerides (viz. virgin vegetable oils, recycled cooking oils, and animal fats) are the main sources for biodiesel production. Biodiesel (mono alkyl esters) is the most attractive alternative fuel to diesel, with numerous environmental advantages over petroleum-based fuel. The most practicable method for converting triglycerides to biodiesel with viscosities comparable to diesel fuel is transesterification. Previous research has proven that biodiesel–diesel blends can operate the compression ignition engine without the need for significant modifications. However, the commercialization of biodiesel is still limited due to the high cost of production. In this sense, the transesterification route is a crucial factor in determining the total cost of biodiesel production. Homogenous base-catalyzed transesterification, industrially, is the conventional method to produce biodiesel. However, this method suffers from limitations both environmentally and economically. Although there are review articles on transesterification, most of them focus on a specific type of transesterification process and hence do not provide a comprehensive picture. This paper reviews the latest progress in research on all facets of transesterification technology from reports published by highly-rated scientific journals in the last two decades. The review focuses on the suggested modifications to the conventional method and the most promising innovative technologies. The potentiality of each technology to produce biodiesel from low-quality feedstock is also discussed.

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Application of Simultaneous Oil Extraction and Transesterification in Biodiesel Fuel Synthesis: A Review

Cited by 22 publications

References 71 publications

Simultaneous Oil Sono-Extraction And Sono-Transesterification (In Situ) Of Soybean And Sunflower Seeds For The Production Of Biodiesel

Simultaneous Oil Sono-Extraction And Sono-Transesterification (In Situ) Of Soybean And Sunflower Seeds For The Production Of Biodiesel

Transesterification method of microalgae biomass to produce fatty acid methyl esters

Current State and Perspectives on Transesterification of Triglycerides for Biodiesel Production

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