Synthesis of biodiesel using potassium fluoride (KF) supported by hydrotalcite and process optimization by Box-Behnken design

Bhaskar Singh, Ashish Birla, S. N. Upadhyay, Zahira Yaakob, Yogesh C. Sharma

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Biodiesel has been developed using a heterogeneous catalyst potassium fluoride (KF) supported on hydrotalcite (HT) and waste frying oil (WFO) as feedstock. Hydrotalcite was synthesized by co-precipitation method using mixture of Mg(NO3)2·6H2O and Al(NO3)2·9H2O slowly added to a solution containing NaOH and Na2CO3 and calcined at 500 °C. KF was impregnated on hydrotalcite at KF/HT load ratio of 80:100 by addition of a small amount of water. Biodiesel was developed using KF/HT as heterogeneous catalyst by transesterification. Box-Behnken Design using Minitab 15. 1 Statistical Software and Design-Expert (Demo version 8. 0. 6. 1) software were used as statistical tool for design of experiments and optimization of fatty acid methyl ester yield. A high yield and conversion of biodiesel was obtained by optimization of variables affecting the reaction. The variables affected the reaction in the priority order of: catalyst amount ≫ molar ratio (methanol to oil) > reaction time. A 12:1 methanol to WFO molar ratio, 2. 5 wt.% of catalyst at 60 °C in 1 h reaction time gave a high fatty acid methyl ester yield of >98 %. The quantitative analysis of the product (i. e., biodiesel) was done on a Fourier-transform-nuclear magnetic resonance spectrometer.

Original languageEnglish
Pages (from-to)317-325
Number of pages9
JournalBiomass Conversion and Biorefinery
Volume2
Issue number4
DOIs
Publication statusPublished - 2012

Fingerprint

Biodiesel
Potassium
Catalysts
Fatty acids
Esters
Methanol
Magnetic resonance spectrometers
Transesterification
Coprecipitation
Design of experiments
Feedstocks
Fourier transforms
Nuclear magnetic resonance
Chemical analysis
Oils
Water

Keywords

  • Biodiesel
  • Hydrotalcite
  • KF
  • Optimization
  • Transesterification

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

Cite this

Synthesis of biodiesel using potassium fluoride (KF) supported by hydrotalcite and process optimization by Box-Behnken design. / Singh, Bhaskar; Birla, Ashish; Upadhyay, S. N.; Yaakob, Zahira; Sharma, Yogesh C.

In: Biomass Conversion and Biorefinery, Vol. 2, No. 4, 2012, p. 317-325.

Research output: Contribution to journalArticle

@article{7da4ba431a3f4f0f9fdb10512231950b,
title = "Synthesis of biodiesel using potassium fluoride (KF) supported by hydrotalcite and process optimization by Box-Behnken design",
abstract = "Biodiesel has been developed using a heterogeneous catalyst potassium fluoride (KF) supported on hydrotalcite (HT) and waste frying oil (WFO) as feedstock. Hydrotalcite was synthesized by co-precipitation method using mixture of Mg(NO3)2·6H2O and Al(NO3)2·9H2O slowly added to a solution containing NaOH and Na2CO3 and calcined at 500 °C. KF was impregnated on hydrotalcite at KF/HT load ratio of 80:100 by addition of a small amount of water. Biodiesel was developed using KF/HT as heterogeneous catalyst by transesterification. Box-Behnken Design using Minitab 15. 1 Statistical Software and Design-Expert (Demo version 8. 0. 6. 1) software were used as statistical tool for design of experiments and optimization of fatty acid methyl ester yield. A high yield and conversion of biodiesel was obtained by optimization of variables affecting the reaction. The variables affected the reaction in the priority order of: catalyst amount ≫ molar ratio (methanol to oil) > reaction time. A 12:1 methanol to WFO molar ratio, 2. 5 wt.{\%} of catalyst at 60 °C in 1 h reaction time gave a high fatty acid methyl ester yield of >98 {\%}. The quantitative analysis of the product (i. e., biodiesel) was done on a Fourier-transform-nuclear magnetic resonance spectrometer.",
keywords = "Biodiesel, Hydrotalcite, KF, Optimization, Transesterification",
author = "Bhaskar Singh and Ashish Birla and Upadhyay, {S. N.} and Zahira Yaakob and Sharma, {Yogesh C.}",
year = "2012",
doi = "10.1007/s13399-012-0059-x",
language = "English",
volume = "2",
pages = "317--325",
journal = "Biomass Conversion and Biorefinery",
issn = "2190-6815",
publisher = "Springer Verlag",
number = "4",

}

TY - JOUR

T1 - Synthesis of biodiesel using potassium fluoride (KF) supported by hydrotalcite and process optimization by Box-Behnken design

AU - Singh, Bhaskar

AU - Birla, Ashish

AU - Upadhyay, S. N.

AU - Yaakob, Zahira

AU - Sharma, Yogesh C.

PY - 2012

Y1 - 2012

N2 - Biodiesel has been developed using a heterogeneous catalyst potassium fluoride (KF) supported on hydrotalcite (HT) and waste frying oil (WFO) as feedstock. Hydrotalcite was synthesized by co-precipitation method using mixture of Mg(NO3)2·6H2O and Al(NO3)2·9H2O slowly added to a solution containing NaOH and Na2CO3 and calcined at 500 °C. KF was impregnated on hydrotalcite at KF/HT load ratio of 80:100 by addition of a small amount of water. Biodiesel was developed using KF/HT as heterogeneous catalyst by transesterification. Box-Behnken Design using Minitab 15. 1 Statistical Software and Design-Expert (Demo version 8. 0. 6. 1) software were used as statistical tool for design of experiments and optimization of fatty acid methyl ester yield. A high yield and conversion of biodiesel was obtained by optimization of variables affecting the reaction. The variables affected the reaction in the priority order of: catalyst amount ≫ molar ratio (methanol to oil) > reaction time. A 12:1 methanol to WFO molar ratio, 2. 5 wt.% of catalyst at 60 °C in 1 h reaction time gave a high fatty acid methyl ester yield of >98 %. The quantitative analysis of the product (i. e., biodiesel) was done on a Fourier-transform-nuclear magnetic resonance spectrometer.

AB - Biodiesel has been developed using a heterogeneous catalyst potassium fluoride (KF) supported on hydrotalcite (HT) and waste frying oil (WFO) as feedstock. Hydrotalcite was synthesized by co-precipitation method using mixture of Mg(NO3)2·6H2O and Al(NO3)2·9H2O slowly added to a solution containing NaOH and Na2CO3 and calcined at 500 °C. KF was impregnated on hydrotalcite at KF/HT load ratio of 80:100 by addition of a small amount of water. Biodiesel was developed using KF/HT as heterogeneous catalyst by transesterification. Box-Behnken Design using Minitab 15. 1 Statistical Software and Design-Expert (Demo version 8. 0. 6. 1) software were used as statistical tool for design of experiments and optimization of fatty acid methyl ester yield. A high yield and conversion of biodiesel was obtained by optimization of variables affecting the reaction. The variables affected the reaction in the priority order of: catalyst amount ≫ molar ratio (methanol to oil) > reaction time. A 12:1 methanol to WFO molar ratio, 2. 5 wt.% of catalyst at 60 °C in 1 h reaction time gave a high fatty acid methyl ester yield of >98 %. The quantitative analysis of the product (i. e., biodiesel) was done on a Fourier-transform-nuclear magnetic resonance spectrometer.

KW - Biodiesel

KW - Hydrotalcite

KW - KF

KW - Optimization

KW - Transesterification

UR - http://www.scopus.com/inward/record.url?scp=84978022760&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84978022760&partnerID=8YFLogxK

U2 - 10.1007/s13399-012-0059-x

DO - 10.1007/s13399-012-0059-x

M3 - Article

VL - 2

SP - 317

EP - 325

JO - Biomass Conversion and Biorefinery

JF - Biomass Conversion and Biorefinery

SN - 2190-6815

IS - 4

ER -