Hydrocracking of vacuum residue using nano-dispersed tungsten carbide catalyst

Chan Hun Kim, Young Gul Hur, Seong Ho Lee, Kwan Young Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, nano-sized tungsten carbide (2.8 nm) particles with enhanced properties were successfully synthesized using removable ceramic coating method and then applied as dispersed catalysts to hydrocracking of vacuum residue, which was carried out at 673 K for 4 h with initial hydrogen pressure of 70 bar. The nano-sized particles were then characterized with XRD, TEM, and BET analysis. The temperature programmed desorption analysis results showed that nano-sized tungsten particles are capable of superior hydrogen adsorption (compared to bulk tungsten carbide) as well as high catalytic performance not only in commercial liquid yield (Naphtha, middle distillate, and gas oil; 46.7 wt%) but also in coke formation (5.9 wt%). Finally, the characterization and performance correlation of the nano-sized tungsten carbide catalyst were analyzed.

Original languageEnglish
Pages (from-to)200-206
Number of pages7
JournalFuel
Volume233
DOIs
Publication statusPublished - 2018 Dec 1

Fingerprint

Hydrocracking
Tungsten carbide
Vacuum
Catalysts
Hydrogen
Tungsten
Ceramic coatings
Naphthas
Temperature programmed desorption
Gas oils
Coke
Transmission electron microscopy
Adsorption
Liquids
tungsten carbide

Keywords

  • Dispersed catalyst
  • Extra-heavy oil
  • Hydrocracking
  • Hydrogenation
  • Tungsten carbide
  • Vacuum residue

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

Cite this

Hydrocracking of vacuum residue using nano-dispersed tungsten carbide catalyst. / Kim, Chan Hun; Hur, Young Gul; Lee, Seong Ho; Lee, Kwan Young.

In: Fuel, Vol. 233, 01.12.2018, p. 200-206.

Research output: Contribution to journalArticle

Kim, Chan Hun ; Hur, Young Gul ; Lee, Seong Ho ; Lee, Kwan Young. / Hydrocracking of vacuum residue using nano-dispersed tungsten carbide catalyst. In: Fuel. 2018 ; Vol. 233. pp. 200-206.
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