ODS of dibenzothiophene over V-SBA-15 mesoporous material.
Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
Univesidsad Tecnológica Nacional.
Abstract
Oxidative desulfurization (ODS) is considered a new
alternative method for deep sulfur elimination from
light oils. This can be due to its attractive properties,
including lower temperature and pressure conditions
and lower operating cost than conventional
hydrodesulfurization process. Oxidation of
organosulfur compounds results in the formation of
sulfoxides/sulfones, highly polar and hence easily
removed by both extraction into polar solvents or by
adsorption. The oxidation of DBTs with organic
hydroperoxides or H2O2 was studied over various
catalytic heterogeneous systems, such as supported
oxide metals or titanium silicalites1-9. Vanadosilicates
were used as catalysts for the desulfurization of light
oil10-12. The oxidation of (DBTs) was also performed
using WOx/ZrO2 catalyst13, supported Pd, Cr2O3,
unsupported manganese oxides and a commercial Co Mo/Al2O3 with hydrogen peroxide as oxidant14. In
general, when tetravalent cations like Ti4+, Zr4+, V4+,
Sn4+, etc. are incorporated to the framework of SBA 15, the electroneutrality is maintained but some redox
properties are incorporated to the support surface15,16
.
In this work we evaluate vanadium modified
mesoporous SBA-15 in the ODS of dibenzothiophene
as a model sulfur compound
Description
Keywords
Oxidative desulfurization (ODS), Ibenzothiophenes (DBT), Mesocrystals, Anatase, Titanium oxide
Citation
18th International Zeolite Conference. Zeolites for a sostainaible world, 2016.
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