Hydrogenation of tetralin in presence of nitrogen using a noble-bimetallic couple over a Ti-modified SBA-15.
Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
Univesidsad Tecnológica Nacional.
Abstract
The increased attention paid to catalytic hydrogenation
in the oil refining industry is due in part to legislation
regarding the maximum contents of sulfur, aromatic
compounds, and alkenes in traffic fuels. Aromatics in
diesel increase the particle emissions in exhaust gases
and they have the further effect of lowering the fuel
quality. Many factors such as the catalysts, process
parameters, feedstock source and quality, reactivities
of sulfur compounds, inhibition effects of H2S,
nitrogen compounds and aromatics present in the feed,
etc. can have significant influences on the degree of
hydrogenation of diesel feeds1,2. Recently, studies have
been reviewed and the investigations have also been
extended to noble metals3
. In our previous
investigations with bimetallic catalysts4
, we had very
good results preparing the catalysts by co impregnation of the relevant metals on the SBA-15
mesoporous matrix. These studies showed high
activity, selectivity and stability as well also greater
resistance to poisons compared to monometallic
catalysts. In this contribution titanium is incorporated
in tetrahedral position replacing silicon in the
mesoporous framework. We expect that Ti
incorporation improve the dispersion of the bimetallic
clusters. In the present work three compounds tetralin,
indole and quinoline were used as models for the
compounds in diesel. The model compounds were
hydrogenated both separately and as mixtures in order
to study the inhibition effect.
Description
Keywords
HDN, HYD, Indole, Pt-Ir, Quinoline
Citation
Elsevier- Catalysis Today- Volumen 282- 2017.
Endorsement
Review
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