Synthesis and evaluation of nanostructured NiMoS 2/SiO 2 microspheres as hydrodesulfurization catalysts

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TypeArticle
Proceedings titleACS National Meeting Book of Abstracts
Conference242nd ACS National Meeting and Exposition, 28 August 2011 through 1 September 2011, Denver, CO
ISSN0065-7727
AbstractNiMoS 2 has been widely used as active component in hydrodesulfurization (HDS) in hydrotreating sulphur-containing fractions during petroleum refining and heavy oil upgrading. Having the potential to enhance catalyst activity, nanostructured NiMoS 2 has attracted significant interests in recent years. However, synthesis of NiMoS 2 with uniform structure is challenging due to easily precipitation of NiS x. In this work, a new method was developed for direct synthesis of uniform nanostructured NiMoS 2/SiO 2 microspheres by ultrasonic spray pyrolysis. The synthesized catalysts were characterized using scanning electron micrograph /energy dispersive spectroscopy, X-ray diffraction, nitrogen isotherm as well as transmission electron microscopy, which confirmed the formation of uniform nanostructured NiMoS 2/SiO 2. It was found that these materials had an average pore size of 6.8 nm with a uniform pore size distribution. The catalytic activity of these catalysts was evaluated using a model compound, dibenzothiophene, with promising results. The HDS kinetics will also be discussed in this presentation.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Fuel Cell Innovation (IFCI-IIPC)
Peer reviewedYes
NPARC number21271238
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Record identifier8e2882c9-6a02-4d38-ba9d-cd439e7fd236
Record created2014-03-24
Record modified2016-05-09
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