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Modified Mesoporous TiO2-SiO2 Catalyst for Oxidative Desulfurization of Dibenzothiophene

Publish place: 16th Iranian National Chemical Engineering Congress
Publish Year: 1397
Type: Conference paper
Language: English
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Link to this Paper:
https://civilica.com/doc/859907

Document National Code:

NICEC16_243

Index date: 28 May 2019

Modified Mesoporous TiO2-SiO2 Catalyst for Oxidative Desulfurization of Dibenzothiophene abstract

The principal objective of this study was to develop a modified TiO2-SiO2 catalyst by a sol-gel method for oxidative desulfurization (ODS) of dibenzothiophene (DBT) as a refractory sulfur compound of liquid fuels. TiO2-SiO2 catalysts were prepared using tetra-n-butyl orthotitanate (TBOT) as titania precursor and tetraethyl orthosilicate (TEOS) as silica precursor. The oxidation of DBT was performed with tert-buthyl hydroproxide (TBHP) as the oxidant in the presence of the synthesized catalyst and the best result showed 98% desulfurization for the catalyst containing 7 wt% TiO2 (Ti-Si/7). However, DBT removal reduced to 20% in the present of a competitive nitrogen compound.

Modified Mesoporous TiO2-SiO2 Catalyst for Oxidative Desulfurization of Dibenzothiophene Keywords:

Oxidative desulfurization , Sol-gel , Titania-Silica , Dibenzothiophene.

Modified Mesoporous TiO2-SiO2 Catalyst for Oxidative Desulfurization of Dibenzothiophene authors

Seyedeh Fatemeh Musavi

Catalysis and nanomaterials research Laboratory, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran.

Amin Bazyari

Catalysis and nanomaterials research Laboratory, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran.

Seyed Mahdi Alavi

Catalysis and nanomaterials research Laboratory, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran.