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Comparison of Novozyme 435 and Purolite D5081 as heterogeneous catalysts for the pretreatment of used cooking oil for biodiesel production

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Comparison of Novozyme 435 and Purolite D5081 as heterogeneous catalysts for the pretreatment of used cooking oil for biodiesel production. / Haigh, K.F.; Abidin, S.Z.; Vladisavljević, G.T. et al.
In: Fuel, Vol. 111, 30.09.2013, p. 186-193.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Haigh, KF, Abidin, SZ, Vladisavljević, GT & Saha, B 2013, 'Comparison of Novozyme 435 and Purolite D5081 as heterogeneous catalysts for the pretreatment of used cooking oil for biodiesel production', Fuel, vol. 111, pp. 186-193. https://doi.org/10.1016/j.fuel.2013.04.056

APA

Haigh, K. F., Abidin, S. Z., Vladisavljević, G. T., & Saha, B. (2013). Comparison of Novozyme 435 and Purolite D5081 as heterogeneous catalysts for the pretreatment of used cooking oil for biodiesel production. Fuel, 111, 186-193. https://doi.org/10.1016/j.fuel.2013.04.056

Vancouver

Haigh KF, Abidin SZ, Vladisavljević GT, Saha B. Comparison of Novozyme 435 and Purolite D5081 as heterogeneous catalysts for the pretreatment of used cooking oil for biodiesel production. Fuel. 2013 Sept 30;111:186-193. doi: 10.1016/j.fuel.2013.04.056

Author

Haigh, K.F. ; Abidin, S.Z. ; Vladisavljević, G.T. et al. / Comparison of Novozyme 435 and Purolite D5081 as heterogeneous catalysts for the pretreatment of used cooking oil for biodiesel production. In: Fuel. 2013 ; Vol. 111. pp. 186-193.

Bibtex

@article{2c6ea636bff848499ef9bb12b4854102,
title = "Comparison of Novozyme 435 and Purolite D5081 as heterogeneous catalysts for the pretreatment of used cooking oil for biodiesel production",
abstract = "The catalytic performance of two types of catalysts, an ion-exchange resin, Purolite D5081 and an immobilised enzyme, Novozyme 435, was compared for the esterification pretreatment of used cooking oil (UCO) for the preparation of biodiesel. The reactions were carried out using a jacketed batch reactor with a reflux condenser. The effect of mass transfer limitations was investigated and it was shown that internal and external mass transfer limitations were negligible. An immobilised enzyme, Novozyme 435, was investigated because it has been shown to give high free fatty acids (FFAs) conversion. This catalyst has been compared to an ion-exchange resin, Purolite D5081, which was developed for the esterification of UCO for the production of biodiesel. It was found that a conversion of 94% was achieved using Purolite D5081 compared to 90% conversion with Novozyme 435. However, the optimum methanol to FFA ratio for Purolite D5081 was 98:1 compared to 6.2:1 for Novozyme 435. In addition, it has been found that with Novozyme 435 there are side reactions which result in the formation of additional fatty acid methyl esters (FAMEs) and FFAs at longer reaction times.",
author = "K.F. Haigh and S.Z. Abidin and G.T. Vladisavljevi{\'c} and B. Saha",
year = "2013",
month = sep,
day = "30",
doi = "10.1016/j.fuel.2013.04.056",
language = "English",
volume = "111",
pages = "186--193",
journal = "Fuel",
issn = "0016-2361",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Comparison of Novozyme 435 and Purolite D5081 as heterogeneous catalysts for the pretreatment of used cooking oil for biodiesel production

AU - Haigh, K.F.

AU - Abidin, S.Z.

AU - Vladisavljević, G.T.

AU - Saha, B.

PY - 2013/9/30

Y1 - 2013/9/30

N2 - The catalytic performance of two types of catalysts, an ion-exchange resin, Purolite D5081 and an immobilised enzyme, Novozyme 435, was compared for the esterification pretreatment of used cooking oil (UCO) for the preparation of biodiesel. The reactions were carried out using a jacketed batch reactor with a reflux condenser. The effect of mass transfer limitations was investigated and it was shown that internal and external mass transfer limitations were negligible. An immobilised enzyme, Novozyme 435, was investigated because it has been shown to give high free fatty acids (FFAs) conversion. This catalyst has been compared to an ion-exchange resin, Purolite D5081, which was developed for the esterification of UCO for the production of biodiesel. It was found that a conversion of 94% was achieved using Purolite D5081 compared to 90% conversion with Novozyme 435. However, the optimum methanol to FFA ratio for Purolite D5081 was 98:1 compared to 6.2:1 for Novozyme 435. In addition, it has been found that with Novozyme 435 there are side reactions which result in the formation of additional fatty acid methyl esters (FAMEs) and FFAs at longer reaction times.

AB - The catalytic performance of two types of catalysts, an ion-exchange resin, Purolite D5081 and an immobilised enzyme, Novozyme 435, was compared for the esterification pretreatment of used cooking oil (UCO) for the preparation of biodiesel. The reactions were carried out using a jacketed batch reactor with a reflux condenser. The effect of mass transfer limitations was investigated and it was shown that internal and external mass transfer limitations were negligible. An immobilised enzyme, Novozyme 435, was investigated because it has been shown to give high free fatty acids (FFAs) conversion. This catalyst has been compared to an ion-exchange resin, Purolite D5081, which was developed for the esterification of UCO for the production of biodiesel. It was found that a conversion of 94% was achieved using Purolite D5081 compared to 90% conversion with Novozyme 435. However, the optimum methanol to FFA ratio for Purolite D5081 was 98:1 compared to 6.2:1 for Novozyme 435. In addition, it has been found that with Novozyme 435 there are side reactions which result in the formation of additional fatty acid methyl esters (FAMEs) and FFAs at longer reaction times.

U2 - 10.1016/j.fuel.2013.04.056

DO - 10.1016/j.fuel.2013.04.056

M3 - Journal article

VL - 111

SP - 186

EP - 193

JO - Fuel

JF - Fuel

SN - 0016-2361

ER -