TY - JOUR
T1 - Evaluation of Conventional Polar Solvents for Extractive Desulfurization of Model Diesel Fuels
AU - Murata, Satoru
AU - Sasaki, Yukina
AU - Sonobe, Rui
AU - Hatakeyama, Masahiko
AU - Sunada, Satoshi
N1 - Publisher Copyright:
© 2024 Japan Petroleum Institute. All rights reserved.
PY - 2024
Y1 - 2024
N2 - Extractive desulfurization (EDS) of model diesel fuels was examined using several polar solvents such as nitriles, esters, sulfoxides, amides, and ureas. EDS of 49-86 % of dibenzothiophene in model diesel fuels (10 g) was performed using these solvents (5 g). Among the solvents, amide solvents such as 1-methylpyrrolidin-2-one (NMP) achieved the best EDS. Relationships between the extractability and the characteristics of solvents were evaluated. The results indicated that polarity of the solvents, i.e., dipole moments, strongly affects extraction yield. Relationships between the structures of the sulfur compounds and extraction efficiency were also investigated. The results suggested that highly condensed aromatic compounds have high extraction yields, whereas methyl group substitution caused significant decreases. Finally, the partition equilibria were investigated. Amide solvents showed behavior that deviated from the normal partition equilibria.
AB - Extractive desulfurization (EDS) of model diesel fuels was examined using several polar solvents such as nitriles, esters, sulfoxides, amides, and ureas. EDS of 49-86 % of dibenzothiophene in model diesel fuels (10 g) was performed using these solvents (5 g). Among the solvents, amide solvents such as 1-methylpyrrolidin-2-one (NMP) achieved the best EDS. Relationships between the extractability and the characteristics of solvents were evaluated. The results indicated that polarity of the solvents, i.e., dipole moments, strongly affects extraction yield. Relationships between the structures of the sulfur compounds and extraction efficiency were also investigated. The results suggested that highly condensed aromatic compounds have high extraction yields, whereas methyl group substitution caused significant decreases. Finally, the partition equilibria were investigated. Amide solvents showed behavior that deviated from the normal partition equilibria.
KW - 1-Methylpyrrolidin-2-one
KW - Dibenzothiophene derivative
KW - Dipole moment
KW - Extractive desulfurization
UR - http://www.scopus.com/inward/record.url?scp=85182586749&partnerID=8YFLogxK
U2 - 10.1627/jpi.67.24
DO - 10.1627/jpi.67.24
M3 - 学術論文
AN - SCOPUS:85182586749
SN - 1346-8804
VL - 67
SP - 24
EP - 29
JO - Journal of the Japan Petroleum Institute
JF - Journal of the Japan Petroleum Institute
IS - 1
ER -