Vacuum residue upgrading through hydroprocessing with subcritical water

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Vacuum residue upgrading reactions were carried out with subcritical water and catalyst. Experiments were performed in the autoclave batch reactor at the various reaction conditions (i.e. temperature change, catalyst amount, reaction time, and water amount). The maximum liquid product conversion was 55.5 wt.% at 400 degrees C, 50 g of VR, 0.5 g of MoNaph catalyst, 6 h of reaction time, and 20 g of water amount. For evaluation of liquid products, C/H atomic ratio, aromaticity, aromaticity condensation, and boiling point distribution was measured by elemental analysis (EA), H-1 nuclear magnetic resonance (H-1 NMR) and gas chromatography simulated distillation (GC-SIMDIS). Results showed that water converts the vacuum residue to the liquid product, and its conversion yield is comparable to that of the hydrogen gas process. Moreover, synthesized MoS2 nanosheet catalyst was used to compare the liquid product conversion.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2016-05
Language
English
Article Type
Article; Proceedings Paper
Keywords

FLUID CATALYTIC CRACKING; HEAVY OIL; DISPERSED CATALYSTS; VISCOSITY REDUCTION; SUPERCRITICAL WATER; AQUATHERMOLYSIS; HYDROCRACKING; SELECTIVITY; MECHANISM; FLOW

Citation

CATALYSIS TODAY, v.265, pp.118 - 123

ISSN
0920-5861
DOI
10.1016/j.cattod.2015.09.038
URI
http://hdl.handle.net/10203/207588
Appears in Collection
CBE-Journal Papers(저널논문)
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