Extraction desulfurization of fuels with ‘metal ions’ based deep eutectic solvents (MDESs)

Li, Changping; Zhang, Jinjin; Li, Zhuo; Yin, Jinling; Cui, Yingna; Liu, Yue; Yang, Guang

doi:10.1039/c6gc00366d

Cited by 134 publications

(54 citation statements)

References 35 publications

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“…A satisfactory value of the extraction efficiency was achieved by DES based on ammonium salt and poly (ethylene glycol), 23 and the efficiency was increased by addition of metal chloride to the same DES. 24 DESs based on choline-chloride 25 and the ones with ethylene-glycol 26 showed a potential for fuel denitrification. The investigated DESs exhibited the possibility of reuse that is essential for industrial application of extraction processes.…”

Section: Introductionmentioning

confidence: 99%

Purification of motor fuels by means of extraction using deep eutectic solvent based on choline chloride and glycerol

Kučan

Rogošić

2019

J of Chemical Tech & Biotech

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BACKGROUND Deep eutectic solvents (DESs) are being used in different applications as replacements for classical organic solvents; their physico‐chemical properties comply with the criteria of environmental acceptability. RESULTS In this work, choline chloride‐glycerol based DESs of different molar ratios (ChCl‐Gly 1:1.5, 1:2 and 1:3) were prepared and characterized with respect to density, dynamic viscosity, refractive index, electrical conductivity and thermal properties. The DESs were tested for denitrification, desulfurization and dearomatization of the six‐component model gasoline composed of three aliphatic hydrocarbons and pyridine, thiophene and toluene as representatives of nitrogen, sulfur and aromatic compounds of fuel, respectively. It was found that ChCl‐Gly is a better solvent for removal of pyridine from model gasoline in comparison with thiophene and toluene. Optimally, denitrification efficiency of 58% can be achieved in one‐stage extraction, and deep denitrification can be achieved in five‐stage extraction resulting in an efficiency of 99.62%. By performing a four‐stage extraction using the same batch of DES, a gradual decrease in extraction efficiency was observed. By evaporative purification of DES between the stages, the extraction efficiency was found to remain constant. ChCl‐Gly exhibited significant efficiency in denitrification of fluid catalytic cracking gasoline as well. CONCLUSION ChCl‐Gly based DESs are suitable for denitrification of fuel. The ability of application environmentally friendly solvents in the fuel purification process contributes to the development of cleaner technologies. © 2018 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Purification of motor fuels by means of extraction using deep eutectic solvent based on choline chloride and glycerol

Kučan

Rogošić

2019

J of Chemical Tech & Biotech

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“…HDS is ah igh-energy-consumption technology,w hichh as limited capacity to efficiently reduce heterocyclic S-compounds, such as benzothiophene( BT), dibenzothiophene (DBT), and their derivatives. [1,[6][7][8] Deep eutectic solvents (DESs), an ew class of ionic liquid (IL) analogues,h ave been deemed as new greens olvents that exhibit low acutet oxicitya nd can be rapidly degraded in the environment. Many non-HDS technologiesh ave been developed, such as extractive desulfurization (EDS), [3] oxidative desulfurization (ODS), [2] adsorptive desulfurization (ADS), [4] and others.…”

Section: Introductionmentioning

confidence: 99%

“…[5] Amongt hem, EDS is considered as one of the most attractive methodst oo btain diesel fuels with ultralow sulfur content because of its moderate and convenient operation conditions. [1,[6][7][8] Deep eutectic solvents (DESs), an ew class of ionic liquid (IL) analogues,h ave been deemed as new greens olvents that exhibit low acutet oxicitya nd can be rapidly degraded in the environment. [9] DESs have more advantages than those of ILs, such as diversity,t he use of cheap raw materials, and as imple and green synthetic process without purification.…”

Section: Introductionmentioning

confidence: 99%

Formation and Extractive Desulfurization Mechanisms of Aromatic Acid Based Deep Eutectic Solvents: An Experimental and Theoretical Study

Zhao

Zhu

Jiao

et al. 2018

Chemistry A European J

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The formation and extractive desulfurization (EDS) mechanisms of aromatic acid based deep eutectic solvents (DESs) were studied experimentally and through quantum chemistry calculations. Hydrogen bonding and van der Waals forces were investigated as the driving forces for the formation of aromatic acid based DESs by means of H NMR and FTIR spectroscopy, and DFT calculations. The driving forces of EDS were also studied. The results showed that van der Waals forces and other weak interactions were the main diving forces for EDS, and the structures of the aromatic acid based DESs did not change after EDS. The interaction energy between the aromatic acid based DESs and thiophene (TH), benzothiophene (BT), and dibenzothiophene (DBT) were calculated by DFT to understand the EDS order: TH

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“…Deep desulfurization of fuel has attracted global interest due to the growing environmental concerns . As gasoline or diesel fuel is considered as the most widely used fuel in transportation, it is also a major source of sulfur pollution, which can cause a series of environmental issues such as smog and acid rain.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, DESs have become suitable candidates for desulfurization processes. They were not only employed as extractants or reaction medium for desulfurization or photochemical desulfurization, but also as catalyst for extraction and catalytic oxidation desulfurization (ECODS) , .…”

Section: Introductionmentioning

confidence: 99%

Removal of Dibenzothiophene from Diesels by Extraction and Catalytic Oxidation with Acetamide‐Based Deep Eutectic Solvents

Hao

Deng

et al. 2019

Chem Eng & Technol

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A series of acetamide-based deep eutectic solvents (DESs) with different proportions were prepared. Extraction and catalytic oxidation desulfurization (ECODS) of the acetamide-based DESs were investigated and the process was optimized. Such DESs with a molar ratio of acetamide and p-TsOH of 1/3 (C 2 H 5 NO/3p-TsOH) exhibits such a remarkable catalytic activity that the dibenzothiophene (DBT) removal could reach 100 % under optimized conditions. C 2 H 5 NO/3p-TsOH was used for the oxidative desulfurization of actual commercial diesel. The sulfur removal of diesel achieved up to 98 %. C 2 H 5 NO/3p-TsOH could be recycled six times and the desulfurization activity was slightly decreased. Evaluation of the mechanism indicated that oxidative desulfurization (ODS) was realized via dual activation of acetamide-based DESs. A novel and effective way for deep desulfurization of diesel is provided.

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Extraction desulfurization of fuels with ‘metal ions’ based deep eutectic solvents (MDESs)

Abstract: A series of MDESs were designed and synthesized, which could be successfully applied in the desulfurization of fuels.

Cited by 134 publications

References 35 publications

Purification of motor fuels by means of extraction using deep eutectic solvent based on choline chloride and glycerol

Purification of motor fuels by means of extraction using deep eutectic solvent based on choline chloride and glycerol

Formation and Extractive Desulfurization Mechanisms of Aromatic Acid Based Deep Eutectic Solvents: An Experimental and Theoretical Study

Removal of Dibenzothiophene from Diesels by Extraction and Catalytic Oxidation with Acetamide‐Based Deep Eutectic Solvents

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