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.

scholarly journals Liquid-Liquid Extraction in Systems Containing Butanol and Ionic Liquids – A Review

2017 ◽  
Vol 38 (1) ◽  
pp. 97-110 ◽  
Author(s):  
Artur Kubiczek ◽  
Władysław Kamiński
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Liquid Extraction ◽  
Butanol Production ◽  
Model Liquid ◽  
New Class ◽  
Liquid Liquid Extraction ◽  
Liquid Systems ◽  
Nrtl Equation ◽  
Equilibrium Data

AbstractRoom-temperature ionic liquids (RTILs) are a moderately new class of liquid substances that are characterized by a great variety of possible anion-cation combinations giving each of them different properties. For this reason, they have been termed as designer solvents and, as such, they are particularly promising for liquid-liquid extraction, which has been quite intensely studied over the last decade. This paper concentrates on the recent liquid-liquid extraction studies involving ionic liquids, yet focusing strictly on the separation of n-butanol from model aqueous solutions. Such research is undertaken mainly with the intention of facilitating biological butanol production, which is usually carried out through the ABE fermentation process. So far, various sorts of RTILs have been tested for this purpose while mostly ternary liquid-liquid systems have been investigated. The industrial design of liquid-liquid extraction requires prior knowledge of the state of thermodynamic equilibrium and its relation to the process parameters. Such knowledge can be obtained by performing a series of extraction experiments and employing a certain mathematical model to approximate the equilibrium. There are at least a few models available but this paper concentrates primarily on the NRTL equation, which has proven to be one of the most accurate tools for correlating experimental equilibrium data. Thus, all the presented studies have been selected based on the accepted modeling method. The reader is also shown how the NRTL equation can be used to model liquid-liquid systems containing more than three components as it has been the authors’ recent area of expertise.

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.

Synthesis, characterization and application of some non-halogen ionic liquids as green solvents for deep desulfurization of diesel oil

Fuel ◽  
2017 ◽  
Vol 191 ◽  
pp. 54-61 ◽  
Author(s):  
Thuy Thi Le Bui ◽  
Do Dinh Nguyen ◽  
Son Van Ho ◽  
Binh Thanh Nguyen ◽  
Ha Thi Ngoc Uong
Keyword(s):  
Ionic Liquids ◽  
Diesel Oil ◽  
Green Solvents ◽  
Deep Desulfurization

Investigation of effect of atomization performance on lean blowout limit for gas turbine combustors by comparison of utilizing aviation kerosene and methane as fuel

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Lei Sun ◽  
Yong Huang ◽  
Zhilin Liu ◽  
Shaolin Wang ◽  
Xiaobo Guo
Keyword(s):  
Gas Turbine ◽  
Liquid Fuel ◽  
Operating Conditions ◽  
Liquid Fuels ◽  
Gas Turbine Combustor ◽  
Lean Blowout ◽  
Aviation Kerosene ◽  
Aero Engine ◽  
Gas Fuel ◽  
Atomization Performance

Abstract The lean blowout (LBO) limit is crucial for gas turbine combustor in the aero engine. The effect of atomization of liquid fuels on the LBO limit is needed to be further studied. On the other hand, the effects of atomization on the LBO limit can be neglected if gas fuels are utilized in a combustor. Thus, the comparative experiment between liquid fuel and gas fuel can be utilized to study the effects of atomization performance of liquid fuels on the LBO limit. In this paper, the LBO limit for a gas turbine combustor utilizing methane is studied experimentally. Seven kinds of combustor configurations are chosen for the experimental test. The LBO limits are obtained for all the chosen combustors. The variation of the LBO limit with the combustor configuration for both methane and aviation kerosene exhibits the similar tendency, i.e., the LBO limits utilizing methane are slightly larger than those utilizing aviation kerosene for the same combustor. Further, the atomization performance has little effects on the LBO limits for the present combustor configurations at the present operating conditions where the SMD for the fuel atomizer utilizing aviation kerosene is about 10 μm.

scholarly journals Synthesis, Characterization and Application of 1-Butyl-3 Methylimidazolium Chloride as Green Material for Extractive Desulfurization of Liquid Fuel

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Swapnil A. Dharaskar ◽  
Mahesh N. Varma ◽  
Diwakar Z. Shende ◽  
Chang Kyoo Yoo ◽  
Kailas L. Wasewar
Keyword(s):  
Energy Efficient ◽  
Liquid Fuel ◽  
Molecular Structures ◽  
Liquid Fuels ◽  
Reaction Conditions ◽  
Green Material ◽  
H Nmr ◽  
Deep Desulfurization ◽  
Desulfurization Process ◽  
C Nmr

The possible application of imidazolium ionic liquids as energy-efficient green material for extractive deep desulfurization of liquid fuel has been investigated. 1-Butyl-3-methylimidazolium chloride [BMIM]Cl was synthesized by nucleophilic substitution reaction of n-methylimidazolium and 1-chlorobutane. Molecular structures of the ILs were confirmed by FTIR,1H-NMR, and13C-NMR. The thermal properties, conductivity, solubility, water content and viscosity analysis of [BMIM]Cl were carried out. The effects of reaction time, reaction temperature, sulfur compounds, and recycling of IL without regeneration on dibenzothiophene removal of liquid fuel were presented. In the extractive desulfurization process, the removal of dibenzothiophene in n-dodecane using [BMIM]Cl was 81% with mass ratio of 1 : 1, in 30 min at 30°C under the mild reaction conditions. Also, desulfurization of real fuels with IL and multistage extraction were studied. The results of this work might offer significant insights in the perceptive use of imidazoled ILs as energy-efficient green material for extractive deep desulfurization of liquid fuels as it can be reused without regeneration with considerable extraction efficiency.

One-pot extractive and oxidative desulfurization of liquid fuels with molecular oxygen in ionic liquids

RSC Advances ◽  
2014 ◽  
Vol 4 (104) ◽  
pp. 59885-59889 ◽  
Author(s):  
Jianlong Wang ◽  
Qingping Guo ◽  
Changming Zhang ◽  
Kaixi Li
Keyword(s):  
Ionic Liquids ◽  
Molecular Oxygen ◽  
Liquid Fuel ◽  
Oxidative Desulfurization ◽  
Liquid Fuels ◽  
One Pot

One-pot extractive and oxidative desulfurization of liquid fuel by NHPI with molecular oxygen in ionic liquids.

scholarly journals Ionic Liquids-Based Nanocolloids—A Review of Progress and Prospects in Convective Heat Transfer Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1039
Author(s):  
Alina Adriana Minea ◽  
S. M. Sohel Murshed
Keyword(s):  
Heat Transfer ◽  
Ionic Liquids ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Experimental Studies ◽  
Real Life ◽  
Green Solvents ◽  
Transfer Enhancement ◽  
New Class ◽  
Direct Applicability

Ionic liquids are a new and challenging class of fluids with great and tunable properties, having the capability of an extensive area of real-life applications, from chemistry, biology, medicine to heat transfer. These fluids are often considered as green solvents. Several properties of these fluids can be enhanced by adding nanoparticles following the idea of nanofluids. These ionic liquids-based nanocolloids are also termed in the literature as ionanofluids or nanoparticles-enhanced ionic liquids. This review summarizes the findings in both areas of ionic liquids and ionic liquids nanocolloids (i.e., ionic liquids with nanoparticles in suspension) with direct applicability in convective heat transfer applications. The review presents in a unified manner the progress and prospects of ionic liquids and their nanocolloids from preparation, thermophysical properties and equally experimental and numerical works. As the heat transfer enhancement requires innovative fluids, this new class of ionic liquids-based nanocolloids is certainly a viable option, despite the noticed drawbacks. Nevertheless, experimental studies are very limited, and thus, extensive experiments are needed to elucidate ionic liquids interaction with nanoparticles, as well as their behavior in convective heat transfer.

Mapping the “Extra Solvent Power, ESP” of Ionic Liquids for Monomers, Polymers and Globular Nanoparticles

2017 ◽  
Author(s):  
Jose A. Pomposo
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Linear Polymers ◽  
Green Solvents ◽  
Ionic Polymers ◽  
First Time ◽  
Solvent Power

Understanding the miscibility behavior of ionic liquid (IL) / monomer, IL / polymer and IL / nanoparticle mixtures is critical for the use of ILs as green solvents in polymerization processes, and to rationalize recent observations concerning the superior solubility of some proteins in ILs when compared to standard solvents. In this work, the most relevant results obtained in terms of a three-component Flory-Huggins theory concerning the “Extra Solvent Power, ESP” of ILs when compared to traditional non-ionic solvents for monomeric solutes (case I), linear polymers (case II) and globular nanoparticles (case III) are presented. Moreover, useful ESP maps are drawn for the first time for IL mixtures corresponding to case I, II and III. Finally, a potential pathway to improve the miscibility of non-ionic polymers in ILs is also proposed.

Ionic Liquids for Topical Delivery in Cancer

2020 ◽  
Vol 26 (41) ◽  
pp. 7520-7532 ◽  
Author(s):  
Ana Rita Dias ◽  
João Costa-Rodrigues ◽  
Cátia Teixeira ◽  
Cristina Prudêncio ◽  
Paula Gomes ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Clinical Applications ◽  
Great Promise ◽  
Topical Drug Delivery ◽  
Green Solvents ◽  
2Nd Generation ◽  
Windows Of Opportunity ◽  
Pharmaceutical Technology ◽  
Skin Cancers ◽  
Per Se

: The unique properties of ionic liquids make them quite appealing for diverse applications, from “green” solvents (1st generation ionic liquids) to finely tuned materials (2nd generation ionic liquids). A decade ago, a 3rd generation of ionic liquids emerged which is focused on their prospective clinical applications, either as drugs per se or as adjuvants in drug formulations. In recent years, research focused on the use of ionic liquids for topical drug delivery has been increasing and holds great promise towards clinical application against skin cancers. This article highlights the growing relevance of ionic liquids in medicinal chemistry and pharmaceutical technology, which is opening new windows of opportunity.

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