Alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil

In recent years, fossil fuels have played a key role in the researcher’s quest for energy sustainable system. The exploration of fossil fuels replacement has become a focus of intense interest, making it possible to resolve numerous current social problems such as the increasing prices of crude petr...

Full description

Saved in:

Bibliographic Details
Main Author:	Yusmaidi, Nuridayah
Format:	Thesis
Language:	English
Published:	2020
Subjects:	QD Chemistry
Online Access:	http://eprints.utm.my/id/eprint/101685/1/NuridayahYusmaidiMFS2020.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.101685
record_format	uketd_dc
spelling	my-utm-ep.1016852023-07-09T00:48:00Z Alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil 2020 Yusmaidi, Nuridayah QD Chemistry In recent years, fossil fuels have played a key role in the researcher’s quest for energy sustainable system. The exploration of fossil fuels replacement has become a focus of intense interest, making it possible to resolve numerous current social problems such as the increasing prices of crude petroleum and environmental stress condition like global warming and air pollution due to the burning of fossil fuels. The application of this biodiesel is growing. However, the optimization of each reaction parameters to attain a high yield has not yet been explored in detail. This study has focused on the use of the heterogeneous base catalyst for biodiesel production. Biodiesel was prepared from the refined cooking oil by transesterification using methanol in the presence of calcium oxides-based supported on alumina by wetness impregnation method. Calcium oxides-based supported on alumina were used as catalysts for the transesterification reaction of refined cooking oil due to their highly basic characteristic. A comparison of the lanthanum oxides, cerium oxides and praseodymium oxides as a dopant was synthesized. The catalytic performance of the prepared catalysts was examined by gas chromatography-flame ionization detector (GC-FID). The three most potential catalyst was selected for the optimization of the transesterification and characterization study. Ce/Ca/Al2O3 catalyst calcined at 900ºC with 3 times of alumina coating and 10:90 wt.% dopant ratio to based, showed the highest biodiesel yield of 94.25% at mild reaction conditions (65°C, 1:18 oil:methanol mole ratio, 10 wt.% catalyst loading within 3 hours). The physicochemical properties of the potential catalysts were studied using nitrogen analysis (NA) and CO2-temperature programmed desorption (CO2-TPD) has 130.79 m2/g surface areas and 1.6132 mmol/g basicity. X-ray diffraction (XRD) and field electron emission microscopy (FESEM) analysis showed Ce/Ca/Al2O3 catalyst had a polycrystalline structure with small particle sizes. X-ray fluorescence (XRF), Energy dispersive X-ray (EDX) and transmission electron microscopy (TEM) confirmed the existence of Ce, La, Pr, Ca, Al and O species in each potential catalyst. At the end of this study, it was proven that Ce/Ca(10:90)/Al2O3 catalyst can catalyze the transesterification reaction of refined cooking oil gave highest biodiesel yield (94.25%). 2020 Thesis http://eprints.utm.my/id/eprint/101685/ http://eprints.utm.my/id/eprint/101685/1/NuridayahYusmaidiMFS2020.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:146268 masters Universiti Teknologi Malaysia Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Yusmaidi, Nuridayah Alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil
description	In recent years, fossil fuels have played a key role in the researcher’s quest for energy sustainable system. The exploration of fossil fuels replacement has become a focus of intense interest, making it possible to resolve numerous current social problems such as the increasing prices of crude petroleum and environmental stress condition like global warming and air pollution due to the burning of fossil fuels. The application of this biodiesel is growing. However, the optimization of each reaction parameters to attain a high yield has not yet been explored in detail. This study has focused on the use of the heterogeneous base catalyst for biodiesel production. Biodiesel was prepared from the refined cooking oil by transesterification using methanol in the presence of calcium oxides-based supported on alumina by wetness impregnation method. Calcium oxides-based supported on alumina were used as catalysts for the transesterification reaction of refined cooking oil due to their highly basic characteristic. A comparison of the lanthanum oxides, cerium oxides and praseodymium oxides as a dopant was synthesized. The catalytic performance of the prepared catalysts was examined by gas chromatography-flame ionization detector (GC-FID). The three most potential catalyst was selected for the optimization of the transesterification and characterization study. Ce/Ca/Al2O3 catalyst calcined at 900ºC with 3 times of alumina coating and 10:90 wt.% dopant ratio to based, showed the highest biodiesel yield of 94.25% at mild reaction conditions (65°C, 1:18 oil:methanol mole ratio, 10 wt.% catalyst loading within 3 hours). The physicochemical properties of the potential catalysts were studied using nitrogen analysis (NA) and CO2-temperature programmed desorption (CO2-TPD) has 130.79 m2/g surface areas and 1.6132 mmol/g basicity. X-ray diffraction (XRD) and field electron emission microscopy (FESEM) analysis showed Ce/Ca/Al2O3 catalyst had a polycrystalline structure with small particle sizes. X-ray fluorescence (XRF), Energy dispersive X-ray (EDX) and transmission electron microscopy (TEM) confirmed the existence of Ce, La, Pr, Ca, Al and O species in each potential catalyst. At the end of this study, it was proven that Ce/Ca(10:90)/Al2O3 catalyst can catalyze the transesterification reaction of refined cooking oil gave highest biodiesel yield (94.25%).
format	Thesis
qualification_level	Master's degree
author	Yusmaidi, Nuridayah
author_facet	Yusmaidi, Nuridayah
author_sort	Yusmaidi, Nuridayah
title	Alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil
title_short	Alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil
title_full	Alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil
title_fullStr	Alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil
title_full_unstemmed	Alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil
title_sort	alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Science
publishDate	2020
url	http://eprints.utm.my/id/eprint/101685/1/NuridayahYusmaidiMFS2020.pdf
_version_	1776100747723669504

Alumina supported calcium/lanthanide oxides catalysts for biodiesel production from refined cooking oil

Similar Items