Electrostatic field and nano-adsorbent refining of fatty acid methyl esters

Zhou, Li; Tse, Timothy J.; Chicilo, Farley; Shen, Jianheng; Meda, Venkatesh; Reaney, Martin J T

doi:10.1016/j.jclepro.2022.133679

Cited by 3 publications

(5 citation statements)

References 59 publications

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“…This implementation of nano-adsorbents coupled with electrostatic field treatment effected a significant reduction in contaminants (e.g., soap, total glycerides) from crude FAME. These reductions were observed after only 1 minute of adsorption and at low agitation speeds [28]. Although removal of spent nano-adsorbents can be challenging, electrostatic field application was successful in removing these particulates from the crude FAME solution without altering FAME chemistry [28].…”

Section: Application Of Electrostatic Field and Nano-adsorbents In Fa...mentioning

confidence: 99%

“…These reductions were observed after only 1 minute of adsorption and at low agitation speeds [28]. Although removal of spent nano-adsorbents can be challenging, electrostatic field application was successful in removing these particulates from the crude FAME solution without altering FAME chemistry [28]. Unfortunately, the application of some of these nano-adsorbents were limited by their reusability.…”

Section: Application Of Electrostatic Field and Nano-adsorbents In Fa...mentioning

confidence: 99%

“…Unfortunately, the application of some of these nano-adsorbents were limited by their reusability. Only Al 2 O 3 was repeatedly regenerated after multiple cycles [28].…”

Section: Application Of Electrostatic Field and Nano-adsorbents In Fa...mentioning

confidence: 99%

“…E-field and nano-adsorbent treatments offer novel approaches that can be rapidly implemented to process and refine vegetable oil and FAAE for biodiesel production [27,28]. The ability to reuse spent nano-adsorbents, and potentially recycle solvents [26], make these approaches an attractive alternative to conventional refining.…”

Section: Application Of Electrostatic Field and Nano-adsorbents In Fa...mentioning

confidence: 99%

“…For example, alcohols exhibit higher latent heat and lower solvent power, compared to hexane thus, requiring a larger amount of solvent to extract seed oil. More recently, newer refining methods (e.g., electrostatic field refinement) [27,28] have been investigated as approaches to minimize the ecological footprint compared to conventional methods. The purpose of this review of biodiesel production, is to compare approaches of FAAE refining, and explore strategies for refining FAAE for biodiesel production.…”

Section: Introductionmentioning

confidence: 99%

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Biodiesel Refining and Processing Strategies

Tse¹,

Zhou²,

Chicilo³

et al. 2024

Advanced Biodiesel - Technological Advances, Challenges, and Sustainability Considerations

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Biodiesel fuel is produced from triglyceride fats, and oils obtained from plant and animal sources. Typically, triglycerides are first transesterified to produce fatty acid alkyl esters (FAAE) and then refined. Traditional FAAE refining strategies are often energy-intensive, requiring large amounts of water (e.g., wet washing), adsorbents, and/or chemicals. Refining, in turn, produces substantial amounts of waste and is accompanied by the loss of biodiesel as neutral oil entrained in waste. A wide array of methods and technologies have been developed for industrial oil purification. Successful refining practices minimize waste and limit neutral oil losses. Recent studies have explored the use of adsorbents, solvent purification processes, membrane filtration, as well as novel applications of electrostatic field treatments to remove polar impurities (including free fatty acids, residues, soaps, and glycerides), and particulates from oils. This chapter will review and compare traditional current and novel strategies for refining FAAE for use as biodiesel.

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Section: Application Of Electrostatic Field and Nano-adsorbents In Fa...mentioning

confidence: 99%

Section: Application Of Electrostatic Field and Nano-adsorbents In Fa...mentioning

confidence: 99%

“…Unfortunately, the application of some of these nano-adsorbents were limited by their reusability. Only Al 2 O 3 was repeatedly regenerated after multiple cycles [28].…”

Section: Application Of Electrostatic Field and Nano-adsorbents In Fa...mentioning

confidence: 99%

Section: Application Of Electrostatic Field and Nano-adsorbents In Fa...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Biodiesel Refining and Processing Strategies

Tse¹,

Zhou²,

Chicilo³

et al. 2024

Advanced Biodiesel - Technological Advances, Challenges, and Sustainability Considerations

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Water-modification of micro- and nano-adsorbents: A strategy for enhancing biodiesel refining efficiency

Zhou,

Tse,

Shen

et al. 2024

Energy Conversion and Management: X

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Utilizing Nano-Adsorbents and Electrostatic Field Treatment for Sustainable Refinement of Crude Canola Oil

Zhou,

Tse,

Chicilo

et al. 2024

Foods

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Removal of polar impurities, such as phospholipids, free fatty acids (FFA), and peroxides, can be challenging during the refining of crude canola oil. Current conventional refining methods are energy-intensive (e.g., hot water washes) and can generate significant waste (e.g., wastewater effluent) and neutral oil loss. This study investigated the joint use of nano-adsorbents and electrostatic field (E-field) treatment as a potential and sustainable alternative in removing these impurities during the oil refining process. Specifically, aluminum oxide (Al2O3) nanoparticles were employed to neutralize FFAs, achieving a 62.4% reduction in acid value while preserving the fatty acid profile of the oil. After refining, E-field treatment was successful in removing the spent nano-adsorbent from solution (up to 72.3% by weight), demonstrating enhanced efficiency compared to conventional methods (e.g., gravitational settling, filtration, and centrifugation). The neutral oil loss using Al2O3 nano-adsorbents was also comparable to conventional refining methods, with a 4.38% (by weight) loss. After E-field treatment, the Al2O3 nano-adsorbent was then calcined to assess reusability. The Al2O3 nano-adsorbent was effectively recycled for three refining cycles. the methods do not use of large amounts of water and generate minimal waste byproducts (e.g., effluent). Nonetheless, while the nano-adsorbents demonstrated promising results in FFA removal, they were less effective in eliminating peroxides and pigments. E-field techniques were also effective in removing spent nano-adsorbent; although, optimization of E-field parameters could further improve its binding capacity. Finally, future studies could potentially focus on the physicochemical modifications of the nano-adsorbent material to enhance their refining capacity and reusability. Overall, this study presents a sustainable alternative or addition to conventional refining methods and lays the groundwork for future research.

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Electrostatic field and nano-adsorbent refining of fatty acid methyl esters

Cited by 3 publications

References 59 publications

Biodiesel Refining and Processing Strategies

Biodiesel Refining and Processing Strategies

Water-modification of micro- and nano-adsorbents: A strategy for enhancing biodiesel refining efficiency

Utilizing Nano-Adsorbents and Electrostatic Field Treatment for Sustainable Refinement of Crude Canola Oil

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