Cover Image

Biodiesel production by single-step acid-catalysed transesterification of Jatropha oil under microwave heating with modelling and optimisation using response surface methodology

Biodiesel is known as one of the best alternative fuels for diesel engines. Low-cost Jatropha oil is considered a potential non-edible feedstock for biodiesel production in India and many other parts of the world. Jatropha oil contains a large amount of free fatty acids (FFA), and soap formation occ...

Full description

Saved in:
Bibliographic Details
Main Authors: Athar, Moina, Imdad, Sameer, Zaidi, Sadaf, Mohammad Yusuf, Mohammad Yusuf, Kamyab, Hesam, Klemeš, Jirí Jaromír, Chelliapan, Shreeshivadasan
Format: Article
Published: Elsevier Ltd 2022
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/104154/
http://dx.doi.org/10.1016/j.fuel.2022.124205
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.104154
record_format eprints
spelling my.utm.1041542024-01-17T01:38:08Z http://eprints.utm.my/104154/ Biodiesel production by single-step acid-catalysed transesterification of Jatropha oil under microwave heating with modelling and optimisation using response surface methodology Athar, Moina Imdad, Sameer Zaidi, Sadaf Mohammad Yusuf, Mohammad Yusuf Kamyab, Hesam Klemeš, Jirí Jaromír Chelliapan, Shreeshivadasan T Technology (General) Biodiesel is known as one of the best alternative fuels for diesel engines. Low-cost Jatropha oil is considered a potential non-edible feedstock for biodiesel production in India and many other parts of the world. Jatropha oil contains a large amount of free fatty acids (FFA), and soap formation occurs during the alkali catalysed transesterification process, hence decreasing the biodiesel yield. The acid catalyst is less sensitive to FFA, but the reaction rate is extremely slow if the transesterification reaction occurs by conventional heating. In the present investigation, microwave heating was used for biodiesel production by the single-step transesterification reaction of Jatropha oil in the presence of an acidic catalyst (sulphuric acid). The central composite rotatable design (CCRD) matrix of response surface methodology (RSM) was employed to determine the optimum design conditions for the transesterification reaction under microwave irradiation. The effects of three selected variables, namely reaction time, catalyst concentration, and methanol, on the oil molar ratio, were assessed. The maximum yield of biodiesel produced in the selected design space by microwave heating was found to be 61.10% under the 11:7 M ratio of the methanol to oil, 2 wt% catalyst concentration, and 90 min reaction time, which was much higher than the biodiesel yield by conventional heating method (3.8%) for the same reaction time. The modified polynomial model for the microwave heating method was developed with the help of ANOVA, main effect plots, interaction plots, and surface plots. The experimental and predicted yield values for fatty acid methyl ester (FAME) showed a linear relationship. The validation of experiments confirmed the accuracy of the suggested model. The produced biodiesel was of good quality, as all the properties were within the prescribed limits of the ASTM D6751 standard. The results of this study showed that the microwave heating method can be used efficiently to obtain a high biodiesel yield from low-cost, high-FFA feedstock such as Jatropha oil in a sulphuric acid-catalysed single-step transesterification reaction. Elsevier Ltd 2022 Article PeerReviewed Athar, Moina and Imdad, Sameer and Zaidi, Sadaf and Mohammad Yusuf, Mohammad Yusuf and Kamyab, Hesam and Klemeš, Jirí Jaromír and Chelliapan, Shreeshivadasan (2022) Biodiesel production by single-step acid-catalysed transesterification of Jatropha oil under microwave heating with modelling and optimisation using response surface methodology. Fuel, 322 (NA). pp. 1-10. ISSN 0016-2361 http://dx.doi.org/10.1016/j.fuel.2022.124205 DOI : 10.1016/j.fuel.2022.124205
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic T Technology (General)
spellingShingle T Technology (General)
Athar, Moina
Imdad, Sameer
Zaidi, Sadaf
Mohammad Yusuf, Mohammad Yusuf
Kamyab, Hesam
Klemeš, Jirí Jaromír
Chelliapan, Shreeshivadasan
Biodiesel production by single-step acid-catalysed transesterification of Jatropha oil under microwave heating with modelling and optimisation using response surface methodology
description Biodiesel is known as one of the best alternative fuels for diesel engines. Low-cost Jatropha oil is considered a potential non-edible feedstock for biodiesel production in India and many other parts of the world. Jatropha oil contains a large amount of free fatty acids (FFA), and soap formation occurs during the alkali catalysed transesterification process, hence decreasing the biodiesel yield. The acid catalyst is less sensitive to FFA, but the reaction rate is extremely slow if the transesterification reaction occurs by conventional heating. In the present investigation, microwave heating was used for biodiesel production by the single-step transesterification reaction of Jatropha oil in the presence of an acidic catalyst (sulphuric acid). The central composite rotatable design (CCRD) matrix of response surface methodology (RSM) was employed to determine the optimum design conditions for the transesterification reaction under microwave irradiation. The effects of three selected variables, namely reaction time, catalyst concentration, and methanol, on the oil molar ratio, were assessed. The maximum yield of biodiesel produced in the selected design space by microwave heating was found to be 61.10% under the 11:7 M ratio of the methanol to oil, 2 wt% catalyst concentration, and 90 min reaction time, which was much higher than the biodiesel yield by conventional heating method (3.8%) for the same reaction time. The modified polynomial model for the microwave heating method was developed with the help of ANOVA, main effect plots, interaction plots, and surface plots. The experimental and predicted yield values for fatty acid methyl ester (FAME) showed a linear relationship. The validation of experiments confirmed the accuracy of the suggested model. The produced biodiesel was of good quality, as all the properties were within the prescribed limits of the ASTM D6751 standard. The results of this study showed that the microwave heating method can be used efficiently to obtain a high biodiesel yield from low-cost, high-FFA feedstock such as Jatropha oil in a sulphuric acid-catalysed single-step transesterification reaction.
format Article
author Athar, Moina
Imdad, Sameer
Zaidi, Sadaf
Mohammad Yusuf, Mohammad Yusuf
Kamyab, Hesam
Klemeš, Jirí Jaromír
Chelliapan, Shreeshivadasan
author_facet Athar, Moina
Imdad, Sameer
Zaidi, Sadaf
Mohammad Yusuf, Mohammad Yusuf
Kamyab, Hesam
Klemeš, Jirí Jaromír
Chelliapan, Shreeshivadasan
author_sort Athar, Moina
title Biodiesel production by single-step acid-catalysed transesterification of Jatropha oil under microwave heating with modelling and optimisation using response surface methodology
title_short Biodiesel production by single-step acid-catalysed transesterification of Jatropha oil under microwave heating with modelling and optimisation using response surface methodology
title_full Biodiesel production by single-step acid-catalysed transesterification of Jatropha oil under microwave heating with modelling and optimisation using response surface methodology
title_fullStr Biodiesel production by single-step acid-catalysed transesterification of Jatropha oil under microwave heating with modelling and optimisation using response surface methodology
title_full_unstemmed Biodiesel production by single-step acid-catalysed transesterification of Jatropha oil under microwave heating with modelling and optimisation using response surface methodology
title_sort biodiesel production by single-step acid-catalysed transesterification of jatropha oil under microwave heating with modelling and optimisation using response surface methodology
publisher Elsevier Ltd
publishDate 2022
url http://eprints.utm.my/104154/
http://dx.doi.org/10.1016/j.fuel.2022.124205
_version_ 1789424386775711744
score 13.211869

Similar Items