Chemical interesterification of soybean oil and methyl acetate to FAME using CaO as catalyst

Nunes, Ana Luiza Barrachini; Castilhos, Fernanda de

doi:10.1016/j.fuel.2020.117264

Cited by 31 publications

(12 citation statements)

References 49 publications

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“…Some studies have shown high contents of esters, [ 24,25,76 ] however, the reactions were conducted using a catalyst, which has the disadvantages of the need for additional steps for separation/recovery of the catalyst, [ 77 ] loss of catalytic activity after its reuse [ 55 ] and high generation of wastewater. [ 78 ] Brondani et al.…”

Section: Resultsmentioning

confidence: 99%

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Use of the Product from Low Pressure Extraction (Crambe Seed Oil and Methyl Acetate) for Synthesis of Methyl Esters and Triacetin Under Supercritical Conditions

Postaue

Mello

Cardozo‐Filho

et al. 2020

Euro J Lipid Sci & Tech

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Methyl esters (ME) and triacetin production from the supercritical interesterification of the product from low pressure extraction (crambe seed oil and methyl acetate) are evaluated. Reactions are conducted at 300-375°C for different residence times, at 20 MPa, and under these conditions the thermal stability of triacetin is evaluated. The effect of the free fatty acid (FFA) concentration (in oil) is determined. An increase in temperature favors the formation of ME and triacetin at shorter reaction times. At 375°C, after 15 min a drop in the ME yield is observed and triacetin is not detected. A reduction in the triacetin concentration (reaching ≈99%) is observed at 375°C. High FFA concentration (in oil) initially provided higher product generation, however, after 15 min no influence is observed. The highest ME yield (≈60%) is obtained at 300°C, along with 1.22 wt% triacetin and ≈5.0 wt% unreacted compounds. Practical Applications: This paper reports new experimental data on an integrated process for the production of methyl esters from low pressure extraction (crambe seeds and methyl acetate) and supercritical reaction of the extraction mixture. The technique used allows the removal of a high quantity of oil from good quality crambe seeds. The viability of applying the integrated process to obtain oils with a high content of free fatty acids is verified, promoting the obtainment of relatively simple methyl esters. The procedure does not require oil purification and solvent recovery prior to the reaction.

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Section: Resultsmentioning

confidence: 99%

“…[ 78 ] Brondani et al. [ 24 ] and Nunes and Castilhos [ 76 ] noted that a longer reaction time was required, and the reactor used was a batch type, which can lead to difficulties with regard to heating and cooling. [ 30 ] In contrast, continuous flow reactors have the advantage of better heat and mass transfer.…”

Section: Resultsmentioning

confidence: 99%

Use of the Product from Low Pressure Extraction (Crambe Seed Oil and Methyl Acetate) for Synthesis of Methyl Esters and Triacetin Under Supercritical Conditions

Postaue

Mello

Cardozo‐Filho

et al. 2020

Euro J Lipid Sci & Tech

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“…However, the variation in yield for different calcination temperatures was not significant. 56 Biodiesel yield of 62.3 wt% and negligible amounts of triacetin were obtained at 325 C in 240 minutes for 10 wt% catalyst amount and methyl acetate ratio of 40. The yield obtained was low when compared to previous reports on soybean interesterification, which were carried out super critically without catalysts and produced yields of 83 wt% and 106 wt% in 45 and 50 minutes, respectively, but at much higher reaction conditions.…”

Section: Edible Feedstockmentioning

confidence: 97%

“…75 A lower temperature and higher biodiesel fuel yield were noticed for this reaction when compared to other interesterification reaction with other feedstocks in the presence and absence of catalysts. 46,55,56,81,101 The high yield was concluded to be related to the water addition on the reaction up to a maximum amount of 2%. The addition of water resulted in the methyl acetate hydrolysis catalyzed by the tin (II) oxide producing methanol, which reacted with triglycerides, leading to higher yields.…”

Section: Edible Feedstockmentioning

confidence: 98%

“…Biodiesel fuel (BDF) consisting of FAMEs and triacetin has been reportedly produced using methyl acetate from soybean oil, 55,56 macauba pulp oil, 57,58 macaw oil, 59 waste cooking oil, 60,61 and algal lipids. 62,63 This review paper focuses mainly on biodiesel produced through interesterification of different feedstock and methyl acetate.…”

Section: Biodiesel Productionmentioning

confidence: 99%

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A concise review on alternative route of biodiesel production via interesterification of different feedstocks

Esan

Olabemiwo

Smith³

et al. 2021

Int J Energy Res

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Environmental challenges and decreasing fossil reserves due to increased utilization of fossil fuels have propagated the importance of alternative energy sources. Increased biodiesel production promoted excess waste crude glycerol leading to environmental issues, thereby inhibiting the sustainability of the process. This review paper discusses the different types of feedstocks utilized to produce glycerol-free biodiesel by reacting with methyl acetate via interesterification. Methyl acetate is used as an advantageous alternative to methanol in biodiesel production to overcome the environmental challenge associated with excess waste glycerol. The by-product, triacetin from the interesterification reaction, has shown excellent qualities as a fuel additive, thereby making the process cleaner and more sustainable as a result of not separating the triacetin from biodiesel. The resulting product referred to as biodiesel fuel (BDF) has been found to exhibit useful properties and applications as fatty acid methyl esters (FAME). The promising environmental and sustainability merits of the process far outweigh the slow interesterification kinetics demerits of the process, which can be overcome by suitable processing conditions. The prospects associated with biodiesel production by interesterification are also pointed out.

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A review on preparation and application of low-calorie structured lipids in food system

Ijaz,

Sun

2024

Food Sci Biotechnol

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Chemical interesterification of soybean oil and methyl acetate to FAME using CaO as catalyst

Cited by 31 publications

References 49 publications

Use of the Product from Low Pressure Extraction (Crambe Seed Oil and Methyl Acetate) for Synthesis of Methyl Esters and Triacetin Under Supercritical Conditions

Use of the Product from Low Pressure Extraction (Crambe Seed Oil and Methyl Acetate) for Synthesis of Methyl Esters and Triacetin Under Supercritical Conditions

A concise review on alternative route of biodiesel production via interesterification of different feedstocks

A review on preparation and application of low-calorie structured lipids in food system

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