Hydrocracking of vacuum residue using nano-dispersed tungsten carbide catalyst

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

doi:10.1016/j.fuel.2018.05.091

Hydrocracking of vacuum residue using nano-dispersed tungsten carbide catalyst

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

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

14 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 language	English
Pages (from-to)	200-206
Number of pages	7
Journal	Fuel
Volume	233
DOIs	https://doi.org/10.1016/j.fuel.2018.05.091
Publication status	Published - 2018 Dec 1

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

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10.1016/j.fuel.2018.05.091

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title = "Hydrocracking of vacuum residue using nano-dispersed tungsten carbide catalyst",

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.",

keywords = "Dispersed catalyst, Extra-heavy oil, Hydrocracking, Hydrogenation, Tungsten carbide, Vacuum residue",

author = "Kim, {Chan Hun} and Hur, {Young Gul} and Lee, {Seong Ho} and Lee, {Kwan Young}",

note = "Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean Government ( MSIP ) ( NRF-2015R1A2A1A13001856 ). Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = dec,

day = "1",

doi = "10.1016/j.fuel.2018.05.091",

language = "English",

volume = "233",

pages = "200--206",

journal = "Fuel",

issn = "0016-2361",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Hydrocracking of vacuum residue using nano-dispersed tungsten carbide catalyst

AU - Kim, Chan Hun

AU - Hur, Young Gul

AU - Lee, Seong Ho

AU - Lee, Kwan Young

N1 - Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean Government ( MSIP ) ( NRF-2015R1A2A1A13001856 ). Publisher Copyright: © 2018

PY - 2018/12/1

Y1 - 2018/12/1

N2 - 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.

AB - 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.

KW - Dispersed catalyst

KW - Extra-heavy oil

KW - Hydrocracking

KW - Hydrogenation

KW - Tungsten carbide

KW - Vacuum residue

UR - http://www.scopus.com/inward/record.url?scp=85048715334&partnerID=8YFLogxK

U2 - 10.1016/j.fuel.2018.05.091

DO - 10.1016/j.fuel.2018.05.091

M3 - Article

AN - SCOPUS:85048715334

SN - 0016-2361

VL - 233

SP - 200

EP - 206

JO - Fuel

JF - Fuel

ER -

Hydrocracking of vacuum residue using nano-dispersed tungsten carbide catalyst

Abstract

Keywords

ASJC Scopus subject areas

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