The synthesis of biodiesel from coconut oil using novel Brønsted acidic ionic liquid as green catalyst

Qiu, Ting; Guo, Xiaoting; Yang, Juxiang; Zhou, Lihua; Li, Ling; Wang, Hongxing; Nabetani, Yu

doi:10.1016/j.cej.2016.03.096

Cited by 73 publications

(26 citation statements)

References 34 publications

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“…Progressively higher molecular kinetics by heightening temperatures and steric hindrance of heavy molecular structures produces a growing difficulty in packing molecules. As observed in Figure 1a [16,17] are coincident with our experimental data. The other collections show extreme deviations from our measurements [18][19][20].…”

Section: Resultssupporting

confidence: 92%

Thermodynamics of Oils of Nutritional/Cosmetic Use: Bertholletia excelsa, Cocos nucifera, and Pterodon emarginatus Vogel

Pires¹,

Andrade²,

Iglesias³

2020

JBTH

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This paper contains the results of a new experimental study about the temperature effect on density and ultrasonic velocity for Brazil nut (Bertholletia excelsa), coconut (Cocos nucifera), and sucupira (Pterodon emarginatus Vogel) oils. Isentropic compressibilities and isobaric expansibilities were computed from the experimental magnitudes as a function of temperature. Halvorsen’s model (HM), and Collision Factor Theory (CFT) were selected for the prediction of these properties due to their wide range of application and easy computation. An accurate response was observed, despite the use of several simplifications as molecular group contribution procedures for estimation of theoretic criticals points of the fatty acids and the complex nature of the studied fluids.

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Section: Resultssupporting

confidence: 92%

Thermodynamics of Oils of Nutritional/Cosmetic Use: Bertholletia excelsa, Cocos nucifera, and Pterodon emarginatus Vogel

Pires¹,

Andrade²,

Iglesias³

2020

JBTH

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“…The final yield obtained was about 96 wt %. Qiu et al 13 investigated the catalytic activities of four novel Brønsted acidic ionic liquids for the biodiesel synthesis through the conversion of coconut oil and MA. The maximum biodiesel yield of about 99% was obtained at the optimal reaction conditions.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonication-Assisted and Benzimidazolium-Based Brønsted Acid Ionic Liquid-Catalyzed Transesterification of Castor Oil

et al. 2018

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In this investigation, we report the synthesis of biodiesel using benzimidazolium-based brønsted acid ionic liquid (BBAIL) catalyst under the influence of ultrasonication. The prepared BBAIL catalyst was characterized by Fourier transform infrared and NMR spectroscopy techniques, and its acidity was determined by the Hammett method with 4-nitroaniline as the indicator. Ultrasonicator horn (22 kHz, 500 W) was used in this work with an on–off cycle of 50–20 s at 70% amplitude. The highest biodiesel yield of 96% was achieved by ultrasonication when 1:10 molar ratio of castor oil to methyl alcohol was used at 50 °C temperature with 9 mol % of the catalyst in just 90 min, which is about 10 times lesser than the process without ultrasonication. At similar conditions, 96% biodiesel yield was obtained in 14 h without ultrasonication. In summary, ultrasonication proved to be an efficient way to improve biodiesel synthesis in less time and BBAIL showed excellent activity toward the conversion of glycerides to synthesize biodiesel. Other important highlights are easy separation of the catalyst and recyclability up to three cycles with small decrease in its activity.

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“…Xia Gui et al [65] utilized cottonseed oil in the process while Dominic et al [66] used refined cottonseed oil in transesterification and achieved a biodiesel yield of 96% under the optimized reaction parameters; alcohol to oil molar ratio of 6:1 at 55 • C was allowed to react for 1 h reaction time and 0.6% catalyst loading. Ting Qiu et al [67] produced biodiesel from traditional coconut oil by utilizing an ionic liquid with Bronsted acidic sites as a catalyst and obtained a yield of 98.7%. Abdurrahman et al [68] produced biodiesel from edible oils (Hazelnut, sunflower, and a mixture of these two oils) and compared their yields.…”

Section: Edible Oil Use For Biodiesel Productionmentioning

confidence: 99%

A Comprehensive Review on Oil Extraction and Biodiesel Production Technologies

et al. 2021

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Dependence on fossil fuels for meeting the growing energy demand is damaging the world’s environment. There is a dire need to look for alternative fuels that are less potent to greenhouse gas emissions. Biofuels offer several advantages with less harmful effects on the environment. Biodiesel is synthesized from the organic wastes produced extensively like edible, non-edible, microbial, and waste oils. This study reviews the feasibility of the state-of-the-art feedstocks for sustainable biodiesel synthesis such as availability, and capacity to cover a significant proportion of fossil fuels. Biodiesel synthesized from oil crops, vegetable oils, and animal fats are the potential renewable carbon-neutral substitute to petroleum fuels. This study concludes that waste oils with higher oil content including waste cooking oil, waste palm oil, and algal oil are the most favorable feedstocks. The comparison of biodiesel production and parametric analysis is done critically, which is necessary to come up with the most appropriate feedstock for biodiesel synthesis. Since the critical comparison of feedstocks along with oil extraction and biodiesel production technologies has never been done before, this will help to direct future researchers to use more sustainable feedstocks for biodiesel synthesis. This study concluded that the use of third-generation feedstocks (wastes) is the most appropriate way for sustainable biodiesel production. The use of innovative costless oil extraction technologies including supercritical and microwave-assisted transesterification method is recommended for oil extraction.

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The synthesis of biodiesel from coconut oil using novel Brønsted acidic ionic liquid as green catalyst

Cited by 73 publications

References 34 publications

Thermodynamics of Oils of Nutritional/Cosmetic Use: Bertholletia excelsa, Cocos nucifera, and Pterodon emarginatus Vogel

Thermodynamics of Oils of Nutritional/Cosmetic Use: Bertholletia excelsa, Cocos nucifera, and Pterodon emarginatus Vogel

Ultrasonication-Assisted and Benzimidazolium-Based Brønsted Acid Ionic Liquid-Catalyzed Transesterification of Castor Oil

A Comprehensive Review on Oil Extraction and Biodiesel Production Technologies

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