Abstract
Five morphologically different nanostructured molybdenum disulfide (MoS2) samples were prepared, namely: nanoparticles, nanorods, nanoplatelets, nanoflowers and porous. These structures were characterized using X-ray diffraction and scanning electron microscope analyses. Afterwards, the up gradation of heavy oil was carried out in the presence of aforementioned nanostructures of molybdenum disulfide as catalysts. The results of catalytic and non-catalytic hydro-processing were compared. It was found that catalytic hydro-processing, due to lower sulfur contents, led to a more efficient and environmental friendly procedure as compared to non-catalytic hydro-processing. Furthermore, aromaticity, aromaticity condensation and branchiness index were also determined. In addition, nuclear magnetic resonance analyses were presented for the product of catalytic hydroprocessing. The nanoparticle morphology of molybdenum disulfide, catalyst, exhibited better result, due to its higher surface area, as compared to other morphologies of molybdenum disulfide catalysts, i.e., nanorods, nanoplatelets nanoflowers and porous structures.
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Abbreviations
- BI:
-
Branching index
- CT :
-
Total carbon
- f A :
-
Aromaticity
- HT :
-
Total hydrogen
- HA :
-
Aromatic hydrogen
- HAU/CA :
-
Aromaticity condensation
- Hα :
-
Aliphatic hydrogen on Cα to aromatic ring
- Hβ :
-
Aliphatic hydrogen on Cβ and CH2, CH beyond the Cβ to aromatic ring
- Hγ :
-
Aliphatic hydrogen on Cγ and CH3 beyond the Cγ to aromatic ring
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The technical and financial support of Korea Science and Engineering Foundation (KOSEF) is highly acknowledged.
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Bano, S., Ahmad, S.W., Woo, S.I. et al. Heavy oil hydroprocessing: effect of nanostructured morphologies of MoS2 as catalyst. Reac Kinet Mech Cat 114, 473–487 (2015). https://doi.org/10.1007/s11144-014-0822-z
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DOI: https://doi.org/10.1007/s11144-014-0822-z