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Development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel

Catalytic oxidative desulfurization (Cat-ODS) activities of thiophenic sulfur were compared using alumina supported of mono-, bi- and trimetallic oxide molybdena based catalysts, prepared by incipient wetness impregnation. The aim of this study was to inquire on the possibility of supported trimetal...

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Main Authors: Wan Mokhtar, Wan Nur Aini, Wan Abu Bakar, Wan Azelee, Ali, Rusmidah, Abdul Kadir, Abdul Aziz
Format: Article
Language:English
Published: Elsevier B.V. 2018
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/79637/1/WanNurAini2018_DevelopmentofBimetallicandTrimetallic.pdf
http://eprints.utm.my/id/eprint/79637/
http://dx.doi.org/10.1016/j.arabjc.2016.04.020
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spelling my.utm.796372019-03-05T01:38:26Z http://eprints.utm.my/id/eprint/79637/ Development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel Wan Mokhtar, Wan Nur Aini Wan Abu Bakar, Wan Azelee Ali, Rusmidah Abdul Kadir, Abdul Aziz QD Chemistry Catalytic oxidative desulfurization (Cat-ODS) activities of thiophenic sulfur were compared using alumina supported of mono-, bi- and trimetallic oxide molybdena based catalysts, prepared by incipient wetness impregnation. The aim of this study was to inquire on the possibility of supported trimetallic oxide catalysts for deep Cat-ODS process. The prepared catalysts were characterized by nitrogen adsorption, X-ray diffraction, field emission scanning electron microscopy and transmission electron microscopy, and tested in the ODS of model thiophene, dibenzothiophene and 4,6-dimethyldibenzothiphene, as well as on commercial and crude diesel. It was found that the addition of dopant and co-dopant toward MoO3/Al2O3 catalysts increased significantly the selectivity of catalytic performance in the order: mono- < bi- < trimetallic oxide. Under these optimum conditions: TBHP/sulfur ratio of 3, 2.13%V/4.08%W/16.07%MoO3/Al2O3 (0.2 g), temperature of 60 °C, 30 min of reaction, and complete removal of model organosulfur compounds were obtained. In addition, >90% of sulfur was removed in both commercial and crude diesel under similar reaction conditions. Reproducibility test showed that the catalyst has higher catalytic activity and could be repeatedly used with little change after five cycles. Elsevier B.V. 2018 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/79637/1/WanNurAini2018_DevelopmentofBimetallicandTrimetallic.pdf Wan Mokhtar, Wan Nur Aini and Wan Abu Bakar, Wan Azelee and Ali, Rusmidah and Abdul Kadir, Abdul Aziz (2018) Development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel. Arabian Journal of Chemistry, 11 (8). pp. 1201-1208. ISSN 1878-5352 http://dx.doi.org/10.1016/j.arabjc.2016.04.020 DOI:10.1016/j.arabjc.2016.04.020
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/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Wan Mokhtar, Wan Nur Aini
Wan Abu Bakar, Wan Azelee
Ali, Rusmidah
Abdul Kadir, Abdul Aziz
Development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel
description Catalytic oxidative desulfurization (Cat-ODS) activities of thiophenic sulfur were compared using alumina supported of mono-, bi- and trimetallic oxide molybdena based catalysts, prepared by incipient wetness impregnation. The aim of this study was to inquire on the possibility of supported trimetallic oxide catalysts for deep Cat-ODS process. The prepared catalysts were characterized by nitrogen adsorption, X-ray diffraction, field emission scanning electron microscopy and transmission electron microscopy, and tested in the ODS of model thiophene, dibenzothiophene and 4,6-dimethyldibenzothiphene, as well as on commercial and crude diesel. It was found that the addition of dopant and co-dopant toward MoO3/Al2O3 catalysts increased significantly the selectivity of catalytic performance in the order: mono- < bi- < trimetallic oxide. Under these optimum conditions: TBHP/sulfur ratio of 3, 2.13%V/4.08%W/16.07%MoO3/Al2O3 (0.2 g), temperature of 60 °C, 30 min of reaction, and complete removal of model organosulfur compounds were obtained. In addition, >90% of sulfur was removed in both commercial and crude diesel under similar reaction conditions. Reproducibility test showed that the catalyst has higher catalytic activity and could be repeatedly used with little change after five cycles.
format Article
author Wan Mokhtar, Wan Nur Aini
Wan Abu Bakar, Wan Azelee
Ali, Rusmidah
Abdul Kadir, Abdul Aziz
author_facet Wan Mokhtar, Wan Nur Aini
Wan Abu Bakar, Wan Azelee
Ali, Rusmidah
Abdul Kadir, Abdul Aziz
author_sort Wan Mokhtar, Wan Nur Aini
title Development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel
title_short Development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel
title_full Development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel
title_fullStr Development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel
title_full_unstemmed Development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel
title_sort development of bimetallic and trimetallic oxides doped on molybdenum oxide based material on oxidative desulfurization of diesel
publisher Elsevier B.V.
publishDate 2018
url http://eprints.utm.my/id/eprint/79637/1/WanNurAini2018_DevelopmentofBimetallicandTrimetallic.pdf
http://eprints.utm.my/id/eprint/79637/
http://dx.doi.org/10.1016/j.arabjc.2016.04.020
_version_ 1643658249478602752
score 13.211869

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