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

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.

scholarly journals Extractive Deep Desulfurization of Liquid Fuels Using Lewis-Based Ionic Liquids

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Swapnil A. Dharaskar ◽  
Kailas L. Wasewar ◽  
Mahesh N. Varma ◽  
Diwakar Z. Shende
Keyword(s):  
Ionic Liquids ◽  
Liquid Fuel ◽  
Extraction Process ◽  
Operating Conditions ◽  
Liquid Fuels ◽  
Green Solvents ◽  
Model Liquid ◽  
New Class ◽  
Deep Desulfurization ◽  
Desulfurization Efficiency

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.

Density Measurement of Pyridine Based Ionic Liquids and Methanol Binary Mixtures

2013 ◽  
Vol 675 ◽  
pp. 248-251
Author(s):  
Zhuo Li ◽  
Chang Ping Li
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Energy Storage ◽  
Binary Mixtures ◽  
Density Measurement ◽  
Chemical Properties ◽  
Storage Material ◽  
Physico Chemical ◽  
New Energy ◽  
Energy Storage Material

As a new environmentally friendly solvent, ionic liquids have been investigated widely. The lack of physico-chemical properties data of ionic liquids has become a bottleneck that restricts their applications. In this study, the investigation of the density for binary mixtures of CnpyNTf2 (n = 2, 4, 5) and methanol is measured using Westphal balance. This study would be very important for the application of binary mixtures of ionic liquid and methanol in developing new energy storage material.

Tailoring ionic liquid catalysts: structure, acidity and catalytic activity of protonic ionic liquids based on anionic clusters, [(HSO4)(H2SO4)x]− (x = 0, 1, or 2)

2014 ◽  
Vol 16 (7) ◽  
pp. 3463-3471 ◽  
Author(s):  
Karolina Matuszek ◽  
Anna Chrobok ◽  
Fergal Coleman ◽  
Kenneth R. Seddon ◽  
Małgorzata Swadźba-Kwaśny
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Ionic Liquids ◽  
Chemical Properties ◽  
Esterification Reaction ◽  
Anionic Clusters ◽  
Physico Chemical

The speciation of a family of inexpensive, easily prepared protonic ionic liquids, their physico-chemical properties and their performance as catalysts in the model esterification reaction have been correlated.

Dissolution of Absorbent Cotton in Ionic Liquid and Characterization of the Regenerated Cellulose

2013 ◽  
Vol 830 ◽  
pp. 163-166 ◽  
Author(s):  
Ri Na Wu ◽  
Hu Zhu ◽  
Bei Hai He
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Chemical Properties ◽  
Regenerated Cellulose ◽  
Absorbent Cotton ◽  
Cellulose Films ◽  
Cotton Linters ◽  
Regenerated Cellulose Films ◽  
Tga Analysis

Dissolution of absorbent cotton (DP above 4000) using ionic liquids as solvent and regeneration was investigated. The results show that 1-ally-3-methylimidazolium chloride (AMIMCl) was a good solvent to dissolve absorbent cotton and a solution of 3 wt% can be reached in 18 min at 120°C. Besides, as the dissolving temperature increased the time needed for the cotton linters to dissolve decreased. The physic-chemical properties of the regenerated cellulose films were also characterized by XRD, FTIR and TGA analysis.

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

2011 ◽  
Vol 287-290 ◽  
pp. 1585-1590 ◽  
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.

Synthesis and characterization of 2′,3′-epoxy propyl-N-methyl-2-oxopyrrolidinium salicylate ionic liquid and study of its interaction with water or methanol

RSC Advances ◽  
2016 ◽  
Vol 6 (66) ◽  
pp. 61566-61575 ◽  
Author(s):  
A. Vasanthakumar ◽  
I. Bahadur ◽  
G. Redhi ◽  
R. M. Gengan
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Chemical Properties ◽  
Synthesis And Characterization ◽  
Physico Chemical

Important physico-chemical properties of ionic liquids (ILs) can be manipulated by adjusting the nature of the cation or anion.

scholarly journals Processes and Properties of Ionic Liquid-Modified Nanofiller/Polymer Nanocomposites—A Succinct Review

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 480
Author(s):  
Ahmad Adlie Shamsuri ◽  
Siti Nurul Ain Md. Jamil ◽  
Khalina Abdan
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Physicochemical Properties ◽  
Polymer Composites ◽  
Polymer Nanocomposites ◽  
Polymer Composite ◽  
Chemical Properties ◽  
The Many

Ionic liquids can typically be synthesized via protonation, alkylation, metathesis, or neutralization reactions. The many types of ionic liquids have increased their attractiveness to researchers for employment in various areas, including in polymer composites. Recently, ionic liquids have been employed to modify nanofillers for the fabrication of polymer nanocomposites with improved physicochemical properties. In this succinct review, four types of imidazolium-based ionic liquids that are employed as modifiers—specifically alkylimidazolium halide, alkylimidazolium hexafluorophosphate, alkylimidazolium tetrafluoroborate, and alkylimidazolium bistriflimide—are reviewed. Additionally, three types of ionic liquid-modified nanofiller/polymer nanocomposites—namely ionic liquid-nanofiller/thermoplastic nanocomposites, ionic liquid-nanofiller/elastomer nanocomposites, and ionic liquid-nanofiller/thermoset nanocomposites—are described as well. The effect of imidazolium-based ionic liquids on the thermo-mechanico-chemical properties of the polymer nanocomposites is also succinctly reviewed. This review can serve as an initial guide for polymer composite researchers in modifying nanofillers by means of ionic liquids for improving the performance of polymer nanocomposites.

Thermodynamics of ionic liquid evaporation under vacuum

2018 ◽  
Vol 20 (33) ◽  
pp. 21262-21268 ◽  
Author(s):  
Shohei Horike ◽  
Masato Ayano ◽  
Masahiro Tsuno ◽  
Tatsuya Fukushima ◽  
Yasuko Koshiba ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Chemical Properties ◽  
Physico Chemical ◽  
Liquid Evaporation ◽  
Evaporation Dynamics

The low volatility of ionic liquids (ILs) is one of their most interesting physico-chemical properties; however, the general understanding of their evaporation dynamics under vacuum is still lagging.

scholarly journals Ultrasonic-Assisted Extraction of Procyanidins Using Ionic Liquid Solution fromLarix gmeliniiBark

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Xiaowei Sun ◽  
Zhimin Jin ◽  
Lei Yang ◽  
Jingwei Hao ◽  
Yuangang Zu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Extraction Efficiency ◽  
Liquid Solution ◽  
Extraction Process ◽  
Ultrasonic Power ◽  
Assisted Extraction ◽  
Ultrasonic Time ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

An ionic liquid-based ultrasonic-assisted extraction method has been developed for the effective extraction of procyanidins fromLarix gmeliniibark. So as to evaluate the performance of ionic liquids in ultrasonic-assisted extraction process, the effects caused by changes in the anion and the alkyl chain length of the cation on the extraction efficiency were investigated in this paper. The results indicated that the characteristics of anions had remarkable effects on the extraction efficiency of procyanidins, and 1-butyl-3-methylimidazolium bromide ([Bmim]Br) aqueous solution was the best among the investigated ionic liquids. The optimum conditions for the extraction were as follows: [Bmim]Br concentration 1.25 M, soak time 3 h, solid-liquid ratio 1 : 10, ultrasonic power 150 W, and ultrasonic time 30 min. This work not only introduces a simple, green, and highly efficient sample preparation method for extraction of procyanidins fromL. gmeliniibark, but also reveals the tremendous application potential of ionic liquids.

scholarly journals Solid–ionic liquid interfaces: pore filling revisited

2014 ◽  
Vol 16 (44) ◽  
pp. 24359-24372 ◽  
Author(s):  
M. T. Heinze ◽  
J. C. Zill ◽  
J. Matysik ◽  
W. D. Einicke ◽  
R. Gläser ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Mesoporous Silica ◽  
Chemical Properties ◽  
Liquid Interface ◽  
Pore Geometry ◽  
Liquid Interfaces ◽  
Pore Filling ◽  
Strength Of Interaction ◽  
Physico Chemical

The strength of interaction at the mesoporous silica–ionic liquid interface and the pore geometry affect the materials' morphology and the physico-chemical properties of the ionic liquids.

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