Optimum Performance of Extractive Desulfurization of Liquid Fuels Using Phosphonium and Pyrrolidinium-Based Ionic Liquids

A new class of green solvents, known as ionic liquids (ILs), has recently been the subject of intensive research on the extractive desulfurization of liquid fuels because of the limitation of traditional hydrodesulfurization method. In present work, eleven Lewis acid ionic liquids were synthesized and employed as promising extractants for deep desulfurization of the liquid fuel containing dibenzothiophene (DBT) to test the desulfurization efficiency. [Bmim]Cl/FeCl3was the most promising ionic liquid and performed the best among studied ionic liquids under the same operating conditions. It can remove dibenzothiophene from the model liquid fuel in the single-stage extraction process with the maximum desulfurization efficiency of 75.6%. It was also found that [Bmim]Cl/FeCl3may be reused without regeneration with considerable extraction efficiency of 47.3%. Huge saving on energy can be achieved if we make use of this ionic liquids behavior in process design, instead of regenerating ionic liquids after every time of extraction.

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Feasibility study of phosphonium ionic liquids as efficient solvent for sulfur extraction from liquid fuels

10.1063/1.5120978 ◽

2019 ◽

Cited By ~ 1

Author(s):

Swapnil Dharaskar ◽

Mika Sillanpaa ◽

Kailas Wasewar ◽

Rashmi Walvekar

Keyword(s):

Ionic Liquids ◽

Feasibility Study ◽

Liquid Fuels ◽

Sulfur Extraction ◽

Phosphonium Ionic Liquids

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Feasibility of phosphonium-based ionic liquids as solvents for extractive desulfurization of liquid fuels

Fluid Phase Equilibria ◽

10.1016/j.fluid.2015.05.015 ◽

2015 ◽

Vol 401 ◽

pp. 102-109 ◽

Cited By ~ 24

Author(s):

Omar U. Ahmed ◽

Farouq S. Mjalli ◽

Ashish M. Gujarathi ◽

Talal Al-Wahaibi ◽

Yahya Al-Wahaibi ◽

...

Keyword(s):

Ionic Liquids ◽

Liquid Fuels

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Desulfurization Of The Dibenzothiophene (DBT) By Using Imidazolium-Based Ionic Liquids(Ils)

Materials Physics and Chemistry ◽

10.18282/mpc.v1i2.571 ◽

2019 ◽

Vol 1 (2) ◽

pp. 1

Author(s):

Bilal Kazmi ◽

Awan Zahoor ◽

Hashmi Saud ◽

Zafar Khan Ghouri

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Process Condition ◽

Chemical Properties ◽

Aspen Plus ◽

Extraction Process ◽

Simulation Software ◽

Liquid Fuels ◽

Process Conditions ◽

Model Diesel

In this work we examined the industrial scale extraction process of ultra-low sulfur diesel with the help of simulation software ASPEN Plus®. This work focuses on the [Cnmim] [BF4] (imidazolium-based) ionic liquid and employed it in the extractive desulfurization of the dibenzothiophene (DBT) from the model diesel fuel under a very mild process condition. UNIFAC (uniquasi functional activity) was chosen as the thermodynamic method to model the ionic liquid on ASPEN Plus® and different physical and chemical properties were then taken from the literature to be incorporated in the simulation model. Different parametric analysis was studied for the removal of thiophene-based compounds from the model diesel. The results acquired shows the significance of imidazolium-based ionic liquids (ILs) for the extraction of S-contents from the liquid fuels at an optimal process conditions of 40 ℃ and 2 bar pressure with the 2.8: 1 ratio of ionic liquid and model diesel which validates the experimental results obtained previously in the literature.

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Dehydration of Fructose to 5-Hydroxymethylfurfural Catalyzed by Alkaline Ionic Liquid

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.287-290.1585 ◽

2011 ◽

Vol 287-290 ◽

pp. 1585-1590 ◽

Cited By ~ 2

Author(s):

Yong Shui Qu ◽

Yan Lei Song ◽

Chong Pin Huang ◽

Jie Zhang ◽

Biao Hua Chen

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Renewable Resources ◽

Room Temperature ◽

Maximum Yield ◽

Catalyst System ◽

Liquid Fuels ◽

Room Temperature Ionic Liquids ◽

The Cost

The preparation of 5-hydroxymethylfurfural (5-HMF) through the dehydration of fructose with room temperature ionic liquids (ILs) has received much attention as a way of producing liquid fuels from renewable resources, but the cost of the process is considerably increased with IL as a solvent rather than as a catalyst. In this work, we have shown that the alkaline Ionic Liquid, 1-Butyl-3-methylimidazolium Hydroxide ([BMIM]OH), can be used as a catalyst in the conversion of fructose to 5-HMF. The maximum yield of 5-HMF was 91.6% at 160 °C after 8 h using dimethylsulfoxide (DMSO) as solvent, and the ketose is more easily dehydrated than aldose in this catalyst system.

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WO3 and Ionic Liquids: A Synergic Pair for Pollutant Gas Sensing and Desulfurization

Metals ◽

10.3390/met10040475 ◽

2020 ◽

Vol 10 (4) ◽

pp. 475 ◽

Cited By ~ 2

Author(s):

Francesca D’Anna ◽

Maria Luisa Grilli ◽

Rita Petrucci ◽

Marta Feroci

Keyword(s):

Ionic Liquids ◽

Performance Enhancement ◽

Gas Adsorption ◽

Gas Sensing ◽

Sulfur Removal ◽

Oxidative Desulfurization ◽

Catalytic Efficiency ◽

Liquid Fuels ◽

High Dispersion ◽

Catalytic Material

This review deals with the notable results obtained by the synergy between ionic liquids (ILs) and WO3 in the field of pollutant gas sensing and sulfur removal pretreatment of fuels. Starting from the known characteristics of tungsten trioxide as catalytic material, many authors have proposed the use of ionic liquids in order to both direct WO3 production towards controllable nanostructures (nanorods, nanospheres, etc.) and to modify the metal oxide structure (incorporating ILs) in order to increase the gas adsorption ability and, thus, the catalytic efficiency. Moreover, ionic liquids are able to highly disperse WO3 in composites, thus enhancing the contact surface and the catalytic ability of WO3 in both hydrodesulfurization (HDS) and oxidative desulfurization (ODS) of liquid fuels. In particular, the use of ILs in composite synthesis can direct the hydrogenation process (HDS) towards sulfur compounds rather than towards olefins, thus preserving the octane number of the fuel while highly reducing the sulfur content and, thus, the possibility of air pollution with sulfur oxides. A similar performance enhancement was obtained in ODS, where the high dispersion of WO3 (due to the use of ILs during the synthesis) allows for noteworthy results at very low temperatures (50 °C).

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