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Cited by 17Catalysis and Hydrodesulfurization StudiesSubcritical and Supercritical Water ProcessesPetroleum Processing and Analysis

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Decomposition of Benzothiophene, Dibenzothiophene, and Their Derivatives in Subcritical and Supercritical Water with Alkali

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Kishita, Atsushi, Takahashi, Satoru, Jin, Fangmin, Yamasaki, Yuki, Moriya, Takehiko, Enomoto, Heiji·2005·Journal of the Japan Petroleum Institute

Abstract

Hydrothermal decomposition of thiophene derivatives in subcritical and supercritical water with alkali was studied to enhance desulfurization using a new on-site upgrading technology. Benzothiophene, dibenzothiophene, and derivatives (BTs and DBTs) can be decomposed by hydrothermal reaction with alkali in a temperature region where thermal decomposition is difficult. The ease of decomposition is influenced by the type and concentration of the alkali solution. Decomposition in KOH solution is the most complete, and occurs at a certain alkali concentration. The reaction is sensitive to the pressure in supercritical water. Moreover, the reaction products of hydrothermal decomposition obtained in the present study differ to those by the hydrodesulfurization method (HDS) previously reported by other researchers. These results suggest that the mechanisms of decomposition are different and hydrothermal decomposition is preceded by ionic reaction. The ease of decomposition of BTs and DBTs is influenced by the molecular structure, similar to the trends seen in HDS.

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  1. 3) Hyne, J. B., Clark, P. D., Clarke, R. E., Koo, J., Greidanus, J. W., Tyrer, J. D., Verona, D., Rizek, C., Int'l Conference on Heavy Crude and Tar Sands 2nd, Caracas, 1984, p.404.

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Metadata

Authors
Kishita, A., Takahashi, S., Jin, F., Yamasaki, Y., Moriya, T., & Enomoto, H.
Affiliations
  • Tohoku University (JP)
  • Graduate School of Environmental Studies, Tohoku University
  • Osaka Prefectural College of Technology
  • Tohoku Electric Power Co., Inc. (Japan) (JP)
Venue
Journal of the Japan Petroleum Institute
Published
2005
Volume
48
Issue
5
Pages
272-280
ISSN
  • 1346-8804 (ISSN-L)
  • 1349-273X
OpenAlex
W2009170633
Cited by
17
References
12
Citations by year
2024: 1 · 2023: 2 · 2021: 1 · 2020: 2 · 2018: 2 · 2015: 2 · 2013: 1 · 2012: 2
FWCI
1.66
Type
journal article
Language
en
Open access
Locations
Journal of the Japan Petroleum Institute (publishedVersion)
Topics
  • Physical Sciences › Chemical Engineering › Catalysis › Catalysis and Hydrodesulfurization Studies
  • Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Subcritical and Supercritical Water Processes
  • Physical Sciences › Chemistry › Analytical Chemistry › Petroleum Processing and Analysis
Keywords
benzothiophene, dibenzothiophene, hydrothermal decomposition, subcritical water, supercritical water, base catalysis, potassium hydroxide, desulfurization, molecular structure effects

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CoChat. (2026). Citation check: Decomposition of Benzothiophene, Dibenzothiophene, and Their Derivatives in Subcritical and Supercritical Water with Alkali. https://app.cochat.ai/papers/10.1627/jpi.48.272
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Kishita, A., Takahashi, S., Jin, F., Yamasaki, Y., Moriya, T., & Enomoto, H. (2005). Decomposition of Benzothiophene, Dibenzothiophene, and Their Derivatives in Subcritical and Supercritical Water with Alkali. Journal of the Japan Petroleum Institute. https://doi.org/10.1627/jpi.48.272

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