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Transesterification of Castor Oil Catalyzed by Liquid Enzymes: Optimization of Reaction Conditions

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Transesterification of Castor Oil Catalyzed by Liquid Enzymes: Optimization of Reaction Conditions. / Andrade, Thalles A.; Errico, Massimiliano; Christensen, Knud V.

Computer Aided Chemical Engineering. Vol. 40 2017. p. 2863-2868.

Research output: Contribution to book/anthology/report/proceedingBook chapterResearchpeer-review

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APA

Andrade, T. A., Errico, M., & Christensen, K. V. (2017). Transesterification of Castor Oil Catalyzed by Liquid Enzymes: Optimization of Reaction Conditions. In Computer Aided Chemical Engineering (Vol. 40, pp. 2863-2868) https://doi.org/10.1016/B978-0-444-63965-3.50479-7

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Andrade, Thalles A. ; Errico, Massimiliano ; Christensen, Knud V. / Transesterification of Castor Oil Catalyzed by Liquid Enzymes: Optimization of Reaction Conditions. Computer Aided Chemical Engineering. Vol. 40 2017. pp. 2863-2868

Bibtex

@inbook{4fce60935b554c418fe2d32031ba3177,
title = "Transesterification of Castor Oil Catalyzed by Liquid Enzymes: Optimization of Reaction Conditions",
abstract = "{\textcopyright} 2017 Elsevier B.V. Enzymes as catalysts for biodiesel production are emerging as a sustainable alternative to chemical catalysts. Enzymatic transesterification has the benefit of a low sensitivity to the water and free fatty acids content in the feed. The choice of feedstock represents a crucial point to the process economy. Based on this, and considering its low influence with food production, castor oil was investigated as a potential feedstock. Compared to other vegetable oils, it has a higher polarity resulting in better system homogeneity during reaction. The enzyme tested as catalyst was Eversa Transform. Four main reaction parameters were investigated for the optimization of the reaction route: the temperature was varied from 35 to 45°C, the water content between 0-10 wt%, the enzyme content in the range of 2-10 wt%, and the alcohol-to-oil molar ratio from 4.5 to 7.5. The Response Surface Methodology was used to determine the optimal reaction conditions to get a high biodiesel yield and a low free fatty acids concentration. The results obtained showed that at 35°C, 5 wt% of enzymes, 5 wt% of water, and a 6.0 alcohol-to-oil molar ratio, the yield in biodiesel was about 94% with a content of free fatty acids of about 6%. This condition was used to develop a reaction equilibrium model using Aspen Plus V8.8. For the main components the difference between the simulated and the experimental data was less than 6%.",
keywords = "biodiesel, liquid enzymes, optimization, response surface, transesterification",
author = "Andrade, {Thalles A.} and Massimiliano Errico and Christensen, {Knud V.}",
year = "2017",
month = oct,
day = "1",
doi = "10.1016/B978-0-444-63965-3.50479-7",
language = "English",
volume = "40",
pages = "2863--2868",
booktitle = "Computer Aided Chemical Engineering",

}

RIS

TY - CHAP

T1 - Transesterification of Castor Oil Catalyzed by Liquid Enzymes: Optimization of Reaction Conditions

AU - Andrade, Thalles A.

AU - Errico, Massimiliano

AU - Christensen, Knud V.

PY - 2017/10/1

Y1 - 2017/10/1

N2 - © 2017 Elsevier B.V. Enzymes as catalysts for biodiesel production are emerging as a sustainable alternative to chemical catalysts. Enzymatic transesterification has the benefit of a low sensitivity to the water and free fatty acids content in the feed. The choice of feedstock represents a crucial point to the process economy. Based on this, and considering its low influence with food production, castor oil was investigated as a potential feedstock. Compared to other vegetable oils, it has a higher polarity resulting in better system homogeneity during reaction. The enzyme tested as catalyst was Eversa Transform. Four main reaction parameters were investigated for the optimization of the reaction route: the temperature was varied from 35 to 45°C, the water content between 0-10 wt%, the enzyme content in the range of 2-10 wt%, and the alcohol-to-oil molar ratio from 4.5 to 7.5. The Response Surface Methodology was used to determine the optimal reaction conditions to get a high biodiesel yield and a low free fatty acids concentration. The results obtained showed that at 35°C, 5 wt% of enzymes, 5 wt% of water, and a 6.0 alcohol-to-oil molar ratio, the yield in biodiesel was about 94% with a content of free fatty acids of about 6%. This condition was used to develop a reaction equilibrium model using Aspen Plus V8.8. For the main components the difference between the simulated and the experimental data was less than 6%.

AB - © 2017 Elsevier B.V. Enzymes as catalysts for biodiesel production are emerging as a sustainable alternative to chemical catalysts. Enzymatic transesterification has the benefit of a low sensitivity to the water and free fatty acids content in the feed. The choice of feedstock represents a crucial point to the process economy. Based on this, and considering its low influence with food production, castor oil was investigated as a potential feedstock. Compared to other vegetable oils, it has a higher polarity resulting in better system homogeneity during reaction. The enzyme tested as catalyst was Eversa Transform. Four main reaction parameters were investigated for the optimization of the reaction route: the temperature was varied from 35 to 45°C, the water content between 0-10 wt%, the enzyme content in the range of 2-10 wt%, and the alcohol-to-oil molar ratio from 4.5 to 7.5. The Response Surface Methodology was used to determine the optimal reaction conditions to get a high biodiesel yield and a low free fatty acids concentration. The results obtained showed that at 35°C, 5 wt% of enzymes, 5 wt% of water, and a 6.0 alcohol-to-oil molar ratio, the yield in biodiesel was about 94% with a content of free fatty acids of about 6%. This condition was used to develop a reaction equilibrium model using Aspen Plus V8.8. For the main components the difference between the simulated and the experimental data was less than 6%.

KW - biodiesel

KW - liquid enzymes

KW - optimization

KW - response surface

KW - transesterification

UR - http://www.scopus.com/inward/record.url?scp=85041376141&partnerID=8YFLogxK

U2 - 10.1016/B978-0-444-63965-3.50479-7

DO - 10.1016/B978-0-444-63965-3.50479-7

M3 - Book chapter

AN - SCOPUS:85041376141

VL - 40

SP - 2863

EP - 2868

BT - Computer Aided Chemical Engineering

ER -