Characterization and analysis of vanadium and nickel species in atmospheric residues

Taegon Kim, Jaewook Ryu, Min Ji Kim, Hyun Jong Kim, Yong-Gun Shul, Yukwon Jeon, Joo Il Park

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Metal species (Ni and V) in as-received atmospheric residues (ARs) were characterized through conventional analysis methods as well as through gas chromatography-atomic emission detection (GC-AED) assembled with a high-temperature injector system (HT-GC-AED). The vanadium concentration in all ARs could be successfully measured by electron spin resonance (ESR) corrected with inductively coupled plasma-mass spectroscopy (ICP-MS). HT-GC-AED was attempted to confirm the characteristics of V and Ni species, from which at least five species of vanadium and six species of nickel in as-received ARs were identified, together with several shoulder peaks. In addition, HT-GC-AED analysis of product oils after hydrodemetallization (HDM) of ARs was investigated over both oxide and sulfide catalysts. This analysis provided evidence of a demetallization mechanism for the cracking of the alkyl group attached to the metal porphyrin structure over oxide catalysts. This mechanism contributes to the enhancement of HDM based on the staged reaction over the oxide (1st stage)-sulfide (2nd stage) catalytic system.

Original languageEnglish
Pages (from-to)783-791
Number of pages9
JournalFuel
Volume117
Issue numberPART A
DOIs
Publication statusPublished - 2014 Jan 1

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Vanadium
Nickel
Gas chromatography
Oxides
Sulfides
Metals
Catalysts
Porphyrins
Inductively coupled plasma
Paramagnetic resonance
Oils
Spectroscopy
Temperature

All Science Journal Classification (ASJC) codes

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

Cite this

Kim, T., Ryu, J., Kim, M. J., Kim, H. J., Shul, Y-G., Jeon, Y., & Park, J. I. (2014). Characterization and analysis of vanadium and nickel species in atmospheric residues. Fuel, 117(PART A), 783-791. https://doi.org/10.1016/j.fuel.2013.10.001
Kim, Taegon ; Ryu, Jaewook ; Kim, Min Ji ; Kim, Hyun Jong ; Shul, Yong-Gun ; Jeon, Yukwon ; Park, Joo Il. / Characterization and analysis of vanadium and nickel species in atmospheric residues. In: Fuel. 2014 ; Vol. 117, No. PART A. pp. 783-791.
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Kim, T, Ryu, J, Kim, MJ, Kim, HJ, Shul, Y-G, Jeon, Y & Park, JI 2014, 'Characterization and analysis of vanadium and nickel species in atmospheric residues', Fuel, vol. 117, no. PART A, pp. 783-791. https://doi.org/10.1016/j.fuel.2013.10.001

Characterization and analysis of vanadium and nickel species in atmospheric residues. / Kim, Taegon; Ryu, Jaewook; Kim, Min Ji; Kim, Hyun Jong; Shul, Yong-Gun; Jeon, Yukwon; Park, Joo Il.

In: Fuel, Vol. 117, No. PART A, 01.01.2014, p. 783-791.

Research output: Contribution to journalArticle

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AU - Jeon, Yukwon

AU - Park, Joo Il

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AB - Metal species (Ni and V) in as-received atmospheric residues (ARs) were characterized through conventional analysis methods as well as through gas chromatography-atomic emission detection (GC-AED) assembled with a high-temperature injector system (HT-GC-AED). The vanadium concentration in all ARs could be successfully measured by electron spin resonance (ESR) corrected with inductively coupled plasma-mass spectroscopy (ICP-MS). HT-GC-AED was attempted to confirm the characteristics of V and Ni species, from which at least five species of vanadium and six species of nickel in as-received ARs were identified, together with several shoulder peaks. In addition, HT-GC-AED analysis of product oils after hydrodemetallization (HDM) of ARs was investigated over both oxide and sulfide catalysts. This analysis provided evidence of a demetallization mechanism for the cracking of the alkyl group attached to the metal porphyrin structure over oxide catalysts. This mechanism contributes to the enhancement of HDM based on the staged reaction over the oxide (1st stage)-sulfide (2nd stage) catalytic system.

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