Microwave Assisted Biodiesel Production Using Heterogeneous Catalysts

As a promising renewable fuel, biodiesel has gained worldwide attention to replace fossil-derived mineral diesel due to the threats concerning the depletion of fossil reserves and ecological constraints. Biodiesel production via transesterification involves using homogeneous, heterogeneous and enzym...

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Main Authors: Haris Mahmood Khan, Tanveer Iqbal, M. A. Mujtaba, Manzoore Elahi M. Soudagar, Ibham Veza, I. M. Rizwanul Fattah
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/23/8135
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author Haris Mahmood Khan
Tanveer Iqbal
M. A. Mujtaba
Manzoore Elahi M. Soudagar
Ibham Veza
I. M. Rizwanul Fattah
author_facet Haris Mahmood Khan
Tanveer Iqbal
M. A. Mujtaba
Manzoore Elahi M. Soudagar
Ibham Veza
I. M. Rizwanul Fattah
author_sort Haris Mahmood Khan
collection DOAJ
description As a promising renewable fuel, biodiesel has gained worldwide attention to replace fossil-derived mineral diesel due to the threats concerning the depletion of fossil reserves and ecological constraints. Biodiesel production via transesterification involves using homogeneous, heterogeneous and enzymatic catalysts to speed up the reaction. The usage of heterogeneous catalysts over homogeneous catalysts are considered more advantageous and cost-effective. Therefore, several heterogeneous catalysts have been developed from variable sources to make the overall production process economical. After achieving optimum performance of these catalysts and chemical processes, the research has been directed in other perspectives, such as the application of non-conventional methods such as microwave, ultrasonic, plasma heating etc, aiming to enhance the efficiency of the overall process. This mini review is targeted to focus on the research carried out up to this date on microwave-supported heterogeneously catalysed biodiesel production. It discusses the phenomenon of microwave heating, synthesis techniques for heterogeneous catalysts, microwave mediated transesterification reaction using solid catalysts, special thermal effects of microwaves and parametric optimisation under microwave heating. The review shows that using microwave technology on the heterogeneously catalysed transesterification process greatly decreases reaction times (5–60 min) while maintaining or improving catalytic activity (>90%) when compared to traditional heating.
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spelling doaj.art-09ca9e03f04a409fbfadc7443b4eaaf62023-11-23T02:23:12ZengMDPI AGEnergies1996-10732021-12-011423813510.3390/en14238135Microwave Assisted Biodiesel Production Using Heterogeneous CatalystsHaris Mahmood Khan0Tanveer Iqbal1M. A. Mujtaba2Manzoore Elahi M. Soudagar3Ibham Veza4I. M. Rizwanul Fattah5Department of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology (New Campus), Lahore 54890, PakistanDepartment of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology (New Campus), Lahore 54890, PakistanDepartment of Mechanical Engineering, University of Engineering and Technology (New Campus), Lahore 54890, PakistanDepartment of Mechanical Engineering, School of Technology, Glocal University, Delhi-Yamunotri Marg, SH-57, Mirzapur Pole, Saharanpur 247121, IndiaAutomotive Development Centre, School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, MalaysiaCentre for Green Technology, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, NSW 2007, AustraliaAs a promising renewable fuel, biodiesel has gained worldwide attention to replace fossil-derived mineral diesel due to the threats concerning the depletion of fossil reserves and ecological constraints. Biodiesel production via transesterification involves using homogeneous, heterogeneous and enzymatic catalysts to speed up the reaction. The usage of heterogeneous catalysts over homogeneous catalysts are considered more advantageous and cost-effective. Therefore, several heterogeneous catalysts have been developed from variable sources to make the overall production process economical. After achieving optimum performance of these catalysts and chemical processes, the research has been directed in other perspectives, such as the application of non-conventional methods such as microwave, ultrasonic, plasma heating etc, aiming to enhance the efficiency of the overall process. This mini review is targeted to focus on the research carried out up to this date on microwave-supported heterogeneously catalysed biodiesel production. It discusses the phenomenon of microwave heating, synthesis techniques for heterogeneous catalysts, microwave mediated transesterification reaction using solid catalysts, special thermal effects of microwaves and parametric optimisation under microwave heating. The review shows that using microwave technology on the heterogeneously catalysed transesterification process greatly decreases reaction times (5–60 min) while maintaining or improving catalytic activity (>90%) when compared to traditional heating.https://www.mdpi.com/1996-1073/14/23/8135microwave-assisted transesterificationheterogeneous catalystbiodieselreaction timethermal effects
spellingShingle Haris Mahmood Khan
Tanveer Iqbal
M. A. Mujtaba
Manzoore Elahi M. Soudagar
Ibham Veza
I. M. Rizwanul Fattah
Microwave Assisted Biodiesel Production Using Heterogeneous Catalysts
Energies
microwave-assisted transesterification
heterogeneous catalyst
biodiesel
reaction time
thermal effects
title Microwave Assisted Biodiesel Production Using Heterogeneous Catalysts
title_full Microwave Assisted Biodiesel Production Using Heterogeneous Catalysts
title_fullStr Microwave Assisted Biodiesel Production Using Heterogeneous Catalysts
title_full_unstemmed Microwave Assisted Biodiesel Production Using Heterogeneous Catalysts
title_short Microwave Assisted Biodiesel Production Using Heterogeneous Catalysts
title_sort microwave assisted biodiesel production using heterogeneous catalysts
topic microwave-assisted transesterification
heterogeneous catalyst
biodiesel
reaction time
thermal effects
url https://www.mdpi.com/1996-1073/14/23/8135
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AT mamujtaba microwaveassistedbiodieselproductionusingheterogeneouscatalysts
AT manzooreelahimsoudagar microwaveassistedbiodieselproductionusingheterogeneouscatalysts
AT ibhamveza microwaveassistedbiodieselproductionusingheterogeneouscatalysts
AT imrizwanulfattah microwaveassistedbiodieselproductionusingheterogeneouscatalysts