Reaction conditions of ultrasound-assisted production of biodiesel: A review

Zhao, Zhicheng; Xue, Yuan; Xu, Guangwen; Chen, Daming; Zhou, Jian; Liu, Ping; Han, Sheng; Lin, Hualin

doi:10.1002/er.3673

Cited by 12 publications

(9 citation statements)

References 130 publications

(267 reference statements)

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“…An interesting alternative is to use ultrasonication for mixing, heating, and mass transfer between different phases of reaction bulk. This process permits adequate mixture reagents and increases the reaction temperature by the cavitation process, bubble bursting formed in ultrasound frequencies into water based on negative, and positive pressions with expansion and compression, reducing costs, energy consumption, and the alcohol:oil ratio.…”

Section: Introductionmentioning

confidence: 99%

Optimization of ethanolic transesterification ultrasound‐assisted from oil mixtures utilizing Box‐Behnken design

Silva

Véras

2019

Int J Energy Res

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Summary Biodiesel is an alternative renewable fuel in the world energy matrix, originating from animal fats and vegetable oils from grains, such as the castor bean cultivated by family farmers in the Brazilian semiarid region. However, the production of biodiesel has some disadvantages. For example, it is difficult to use the same types of oil/fat all year round. In addition, the use of methanol in the biodiesel synthesis and agitation process results in a high consumption of energy. Given this background, this article proposes an alternative biodiesel synthesis using castor oil and peanut oil mixtures, ultrasound‐assisted in an ethylic route. The experimental conditions were optimized utilizing a Box‐Behnken design. The response variable was a biodiesel yield. In this work, it was possible to reduce the ratio of alcohol to oil and thus reduce the energy consumption and increase the mass yield. This permitted the generation of biofuel with lower production costs. Finally, the response surface methodology leads to operational conditions more suitable for the production of biodiesel. In this work, the best conditions were obtained using 0.50% catalyst concentration, 50/50 castor:peanut oil rate, and 5:1 alcohol:oil ratio. These were moderate and suitable conditions for the synthesis of biodiesel in comparison with the works found in the literature, reaching a high yield of 97.93%.

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Section: Introductionmentioning

confidence: 99%

Optimization of ethanolic transesterification ultrasound‐assisted from oil mixtures utilizing Box‐Behnken design

Silva

Véras

2019

Int J Energy Res

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“…It is reported that 88% of the energy used by humans is derived from non-renewable fossil fuels, which result in an urgent demand for sustainable and green energy [1]. It is reported that 88% of the energy used by humans is derived from non-renewable fossil fuels, which result in an urgent demand for sustainable and green energy [1].…”

Section: Introductionmentioning

confidence: 99%

“…It is reported that 88% of the energy used by humans is derived from non-renewable fossil fuels, which result in an urgent demand for sustainable and green energy [1]. A number of energy production and consumption giants, such as British Petroleum, Chevron, General Atomics, Boeing, Virgin Airlines, Japan Airlines, and New Zealand Airlines, invested in the research and development of microalgae energy [1]. Lignocellulosic material is the most promising feedstock for bioethanol production.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, energy shortage and environmental pollution are both intensified with the development of industrialization and urbanization. It is reported that 88% of the energy used by humans is derived from non-renewable fossil fuels, which result in an urgent demand for sustainable and green energy [1]. Microalgae have drawn increased attentions in recent years to produce bio-fuels.…”

Section: Introductionmentioning

confidence: 99%

“…US military and commercial airlines have already begun large-scale use of microalgae derived bio-fuels in the vessels and aircrafts [2]. A number of energy production and consumption giants, such as British Petroleum, Chevron, General Atomics, Boeing, Virgin Airlines, Japan Airlines, and New Zealand Airlines, invested in the research and development of microalgae energy [1].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermochemical liquefaction characteristics of Cyanobacteria in subcritical and supercritical ethanol-water mixture

Meng

Bao

Wang

et al. 2017

Int. J. Energy Res.

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Summary The thermochemical liquefaction of Cyanobacteria in subcritical and supercritical ethanol–water mixture was studied with different reaction temperature, reaction time, solvent composition, and solid–liquid ratio. Highest bio‐oil yield of 42.5% containing mainly fatty acid ethyl esters, phenols, pyrrolidinones, and pyridinols was obtained in ethanol–water mixture (4/6, v/v) at temperature of 320°C for 30 min, with solid–liquid ratio of 1 g/15 mL. Both solvent composition and supercritical state had great influence on the liquefaction of Cyanobacteria, while the synergetic effects of water and ethanol in co‐solvents were again verified. Copyright © 2017 John Wiley & Sons, Ltd.

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Transesterification using isopropanol as a co‐solvent for the production of green biodiesel fuel

Pham

Nguyen

Imamura

et al. 2021

Intl J of Energy Research

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Summary Previously, we have conducted the transesterification using isopropanol (IPA) as a co‐solvent for biodiesel fuel (BDF) production in the homogeneous condition (a single fatty acid methyl ester [FAME] phase). In this report, we investigated the transesterification kinetics by varying IPA amount and the optimum conditions for BDF production with 10 wt% IPA. In the IPA amount of 5 to 25 wt%, the transesterification proceeded in a heterogeneous condition (FAME and glycerol [GL] phases) as the GL phase was formed and separated from the FAME phase. The transesterification rate increased with the increase of IPA amount, and the correlation coefficient (r) between the rate constant and IPA amount was 0.97 (P < 0.05). The optimal conditions of transesterification for biodiesel production from canola oil with 10 wt% IPA were as follows: 1.0 wt% KOH, MeOH/oil molar ratio of 6:1, and a reaction temperature of 30°C. The quality of biodiesel satisfied the JIS K2390 and EN 14214 standards. Transesterification using 10 wt% IPA co‐solvent could facilitate the phase separation after the reaction, and the amount of waste was reduced. The recovery of IPA from FAME phase was >96%, hence IPA could be reused. These results indicated that IPA was a superior co‐solvent for the BDF production from plant oil feedstocks. Novelty statement Isopropanol as a co‐solvent for biodiesel production from canola oil was examined. Kinetic parameter of reaction rate was estimated. The transesterification proceeded rapidly with increase of isopropanol. The transesterification conditions were optimized for biodiesel production with 10 wt% of isopropanol.

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Reaction conditions of ultrasound-assisted production of biodiesel: A review

Cited by 12 publications

References 130 publications

Optimization of ethanolic transesterification ultrasound‐assisted from oil mixtures utilizing Box‐Behnken design

Optimization of ethanolic transesterification ultrasound‐assisted from oil mixtures utilizing Box‐Behnken design

Thermochemical liquefaction characteristics of Cyanobacteria in subcritical and supercritical ethanol-water mixture

Transesterification using isopropanol as a co‐solvent for the production of green biodiesel fuel

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