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Sulfur transformation in coal during supercritical water gasification
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The sulfur transformation pathway and mechanism of crude oil, coal, and sludge in SCWG have been studied by analyzing the sulfur forms in solid, liquid and gaseous products.
“The sulfur transformation pathway and mechanism of crude oil [32], coal [30,33], and sludge [34,35] in SCWG have been studied by analyzing the sulfur forms in solid, liquid and gaseous products.”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
There were differences existing in the sulfurous gases production during SCWG process.
“Finally, there were differences existing in the sulfurous gases production during SCWG process.”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
Current researches on sulfur transformation of different materials in SCWG were studied at relatively lower temperature range.
“Third, the current researches on sulfur transformation of different materials in SCWG were studied at relatively lower temperature range.”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
Meng et al. explored the sulfur transformation of coal in SCWG at temperatures ranging from 350 °C to 550 °C.
“For instance, Meng et al. [33] explored the sulfur transformation of coal in SCWG at temperature ranging from 350 ◦C to 550 ◦C.”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
Some researchers concluded that there were COS, CH3SH and CH3SCH3 in gaseous products during the SCWG of coal and sludge.
“Different from them, some researchers concluded that there were COS, CH3SH and CH3SCH3 in gaseous products during the SCWG of coal [33] and sludge [34].”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
XPS peak values at 163.3 eV, 164.1 eV, 168.2 eV and 170 eV of binding energy represented thiol/thioether (S1), thiophene (S2), sulfones (S3) and sulfate (S4), respectively.
“As shown in Fig. 8, the corresponding peak values fixed at 163.3 eV, 164.1 eV, 168.2 eV, 170 eV of binding energy represented thiol/thioether (S1), thiophene (S2), sulfones (S3) and sulfate (S4), respectively [33].”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
⋅SH/⋅SR radicals generated by the decomposition of thiol/thioether in SCWG tended to react with organics of black liquor to produce S2.
“S2 was more challenging to decompose due to the presence of delocalized pi bonds, and the ⋅SH/⋅SR radicals generated by the decomposition of thiol/thioether in SCWG tended to react with organics of black liquor to produce S2, which led to relatively higher percentages of thiophene sulfur in solid residues [33].”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
SO2 was not detected in gaseous products.
“SO2 were not detected in gaseous products, which was consistent with the works of researchers [30,33,34].”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
The decomposition rate of S2 was relatively lower than that of S1 and S3.
“Still, the proportion of S2 showed an increasing tend with the increase in temperature, because the decomposition rate of S2 was relatively lower than that of S1 and S3.”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
S2 was more challenging to decompose due to the presence of delocalized pi bonds.
“S2 was more challenging to decompose due to the presence of delocalized pi bonds, and the ⋅SH/⋅SR radicals generated by the decomposition of thiol/thioether in SCWG tended to react with organics of black liquor to produce S2, which led to relatively higher percentages of thiophene sulfur in solid residues [33].”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
OH free radical of SCW and oxygen-containing group of organics might oxidize sulfur to sulfate.
“Second, the OH free radical of SCW and the oxygen− containing group of organics might oxidize sulfur to sulfate [33].”
From Sulfur transformation mechanism during supercritical water gasification of black liquor (2023) · cites this paper as [33]
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Cited by
Sorted by citations
Liu, S., Li, L., Guo, L., Jin, H., Kou, J., & Li, G. (2017) · Energy & Fuels · doi:10.1021/acs.energyfuels.7b02505 · Cited by 56
Sulfur transformation mechanism during supercritical water gasification of black liquor
Lu, L., Wei, W., Liu, F., Ge, Z., Jin, H., Chen, Y., & Guo, L. (2023) · Fuel · doi:10.1016/j.fuel.2022.127333 · Cited by 22
Metadata
- Authors
- Meng, N., Jiang, D., Liu, Y., Gao, Z., Cao, Y., Zhang, J., Gu, J., & Han, Y.
- Affiliations
- Tianjin University (CN)
- ENN (China) (CN)
- Corresponding author
- Han, You
- Venue
- Fuel
- Publisher
- Elsevier BV
- Published
- 2016-12
- Volume
- 186
- Pages
- 394-404
- ISSN
- 0016-2361 (ISSN-L)
- OpenAlex
- W2515519238
- Cited by
- 69
- References
- 0
- Citations by year
- 2026: 4 · 2025: 8 · 2024: 9 · 2023: 6 · 2022: 7 · 2021: 13 · 2020: 8 · 2019: 3 · 2018: 7 · 2017: 4
- FWCI
- 2.25
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Fuel (publishedVersion)
- Funders
- National High-Tech Research and Development Program of China (2011AA05A201)
- National Natural Science Foundation of China (21576205)
- International Science & Technology Cooperation Program of China (2013DFG42680)
- Topics
- Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Subcritical and Supercritical Water Processes
- Physical Sciences › Energy › Fuel Technology › Mining and Gasification Technologies
- Physical Sciences › Energy › Fuel Technology › Coal Properties and Utilization
- Keywords
- supercritical water gasification, coal gasification, sulfur transformation, pyrite, pyrrhotite, magnetite, organosulfur compounds, sulfones, thiophene, sulfate, sulfite, sulfide, hydrogen sulfide, sulfur dioxide, radical mechanism, coal pyrolysis, coal rank, sulfur pollution
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