Boric acid-based ternary deep eutectic solvent for extraction and oxidative desulfurization of diesel fuel

2019 ◽  
Vol 21 (11) ◽  
pp. 3074-3080 ◽  
Author(s):  
Wei Jiang ◽  
Hao Jia ◽  
Hongping Li ◽  
Linhua Zhu ◽  
Runming Tao ◽  
...  
Keyword(s):  
Boric Acid ◽  
Diesel Fuel ◽  
Deep Eutectic Solvent ◽  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
First Time

Ternary deep eutectic solvents were used for ODS of fuels (DESs) for the first time although most research continues to be focused on binary DESs.

scholarly journals Desulfurization Performance of Choline Chloride-Based Deep Eutectic Solvents in the Presence of Graphene Oxide

Environments ◽  
2020 ◽  
Vol 7 (11) ◽  
pp. 97
Author(s):  
Chiau Yuan Lim ◽  
Mohd Faridzuan Majid ◽  
Sarrthesvaarni Rajasuriyan ◽  
Hayyiratul Fatimah Mohd Zaid ◽  
Khairulazhar Jumbri ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
Tetraethylene Glycol ◽  
Catalytic Oxidative Desulfurization ◽  
The One ◽  
Model Oil

Extractive catalytic oxidative desulfurization (ECODS) is the one of the recent methods used in fuel desulfurization which involved the use of catalyst in the oxidative desulfurization of diesel fuel. This study is aimed to test the effectiveness of synthesized choline chloride (ChCl) based deep eutectic solvent (DES) in fuel desulfurization via ECODS method, with the presence of graphene oxide (GO) as catalyst and hydrogen peroxide (H2O2) as oxidant. In this study, 16 DESs based on choline chloride were synthesized using glycerol (GLY), ethylene glycol (EG), tetraethylene glycol (TEG) and polyethylene glycol (PEG). The characterization of the synthesized DES was carried out via Fourier transform infrared spectroscopy (FTIR) analysis, density, and viscosity determination. According to the screening result, ChCl-PEG (1:4) was found to be the most effective DES for desulfurization using ECODS method, with a removal of up to 47.4% of sulfur containing compounds in model oil in just 10 min per cycle after the optimization of the reaction parameters, and up to 95% desulfurization efficiency could be achieved by six cycles of desulfurization. It is found that the addition of GO as catalyst does not increase the desulfurization performance drastically; hence, future studies for the desulfurization performance of DESs made up from ChCl and PEG and its derivatives can be done simply by using extraction desulfurization (EDS) method instead of ECODS method, for cost reduction purpose and easier regulation of DES waste into environment.

Deep eutectic solvent systems for FeCl3-catalyzed oxidative polymerization of 3-octylthiophene

2017 ◽  
Vol 19 (4) ◽  
pp. 910-913 ◽  
Author(s):  
Tae-Joon Park ◽  
Sang Hyun Lee
Keyword(s):  
Oxidative Polymerization ◽  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
Solvent Systems ◽  
First Time

FeCl3-catalyzed oxidative polymerization of 3-octylthiophene was achieved using deep eutectic solvents (DESs) for the first time.

scholarly journals Deep eutectic solvents extraction of dibenzothiophene in model diesel

2017 ◽  
Author(s):  
◽  
Huan Jiang
Keyword(s):  
Diesel Fuel ◽  
Environmental Protection Agency ◽  
Low Cost ◽  
Sulfur Removal ◽  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
Synthesis Process ◽  
Content Standards ◽  
Organic Sulfur Compounds ◽  
Desulfurization Process

Organic sulfur compounds in diesel fuel produce SOx during combustion in vehicles, leading to severe environmental pollution and causing health issues. The U.S. Environmental Protection Agency has established increasingly rigid sulfur-content standards, which has led to intense interest in deep desulfurization of diesel fuel. However, current desulfurization technology is not sufficient to achieve the ultralow sulfur diesel (ULSD) required for use in highway vehicles. Deep eutectic solvents (DESs) appearing at the beginning of this century have become excellent extraction agents for the deep extractive desulfurization process, owing to its low cost, simple and environmentally friendly synthesis process, chemical stability, non-volatility, and being biodegradable. Research shows that DESs have better efficiency than traditional ionic liquids (ILs). Therefore, DESs are better suited for use in desulfurization. In this study, a new potassium salt-based DES was synthesized using potassium carbonate(K2CO3) and ethylene glycol (EG). This type of DES and 30 wt.% H2O2 were employed as extractant and oxidant separately for the desulfurization system. Various experiments were carried out on the process of oxidative desulfurization (ODS), extractive desulfurization(EDS) and extractive and oxidative desulfurization (EODS) to find the optimal desulfurization process with this new type of DES. The study found EDS to be the optimal desulfurization process, with a sulfur removal efficiency of 86% at 30[degrees]C after 2 hours, which is higher than most DESs.

Deep eutectic solvent-based dispersive liquid–liquid microextraction

2016 ◽  
Vol 8 (12) ◽  
pp. 2576-2583 ◽  
Author(s):  
Mir Ali Farajzadeh ◽  
Mohammad Reza Afshar Mogaddam ◽  
Mahdi Aghanassab
Keyword(s):  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
Extraction Solvent ◽  
Dispersive Liquid Liquid Microextraction ◽  
First Time ◽  
Liquid Microextraction

In this study, for the first time, a new kind of solvent termed deep eutectic solvents has been synthesized and used as the extraction solvent in a dispersive liquid–liquid microextraction method.

scholarly journals Enzymatic Synthesis of Glucose Monodecanoate in a Hydrophobic Deep Eutectic Solvent

2020 ◽  
Vol 21 (12) ◽  
pp. 4342 ◽  
Author(s):  
Rebecca Hollenbach ◽  
Katrin Ochsenreither ◽  
Christoph Syldatk
Keyword(s):  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
Decanoic Acid ◽  
Significant Loss ◽  
Esterification Reaction ◽  
Initial Reaction ◽  
Reaction Velocity ◽  
Glycolipid Synthesis ◽  
Reaction Media ◽  
First Time

Environmentally friendly and biodegradable reaction media are an important part of a sustainable glycolipid production in the transition to green chemistry. Deep eutectic solvents (DESs) are an ecofriendly alternative to organic solvents. So far, only hydrophilic DESs were considered for enzymatic glycolipid synthesis. In this study, a hydrophobic DES consisting of (-)-menthol and decanoic acid is presented for the first time as an alternative to hydrophilic DES. The yields in the newly introduced hydrophobic DES are significantly higher than in hydrophilic DESs. Different reaction parameters were investigated to optimize the synthesis further. Twenty milligrams per milliliter iCalB and 0.5 M glucose resulted in the highest initial reaction velocity for the esterification reaction, while the highest initial reaction velocity was achieved with 1.5 M glucose in the transesterification reaction. The enzyme was proven to be reusable for at least five cycles without significant loss of activity.

One-pot extraction combined with metal-free photochemical aerobic oxidative desulfurization in deep eutectic solvent

2015 ◽  
Vol 17 (4) ◽  
pp. 2464-2472 ◽  
Author(s):  
Wenshuai Zhu ◽  
Chao Wang ◽  
Hongping Li ◽  
Peiwen Wu ◽  
Suhang Xun ◽  
...  
Keyword(s):  
Deep Eutectic Solvent ◽  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
One Pot ◽  
Metal Free ◽  
Deep Desulfurization

One-pot extraction combined with the metal-free photochemical aerobic oxidative deep-desulfurization of fuels in deep eutectic solvents was successfully achieved.

scholarly journals Synergistic effect of dual Brønsted acidic deep eutectic solvents for oxidative desulfurization of diesel fuel

2020 ◽  
Vol 394 ◽  
pp. 124831 ◽  
Author(s):  
Wei Jiang ◽  
Kun Zhu ◽  
Hongping Li ◽  
Linhua Zhu ◽  
Mingqing Hua ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Diesel Fuel ◽  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents

Toxico-metabolomics study of a deep eutectic solvent comprising choline chloride and urea suggests in vivo toxicity involving oxidative stress and ammonia stress

2021 ◽  
Vol 23 (3) ◽  
pp. 1300-1311 ◽  
Author(s):  
Dasom Jung ◽  
Jae Back Jung ◽  
Seulgi Kang ◽  
Ke Li ◽  
Inseon Hwang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
In Vivo Toxicity ◽  
Metabolomics Study ◽  
Ammonia Stress

The in vitro and in vivo studies suggest that choline chloride-based deep eutectic solvents may not be considered as pure, safe mixtures even if they consist of safe compounds.

scholarly journals Deep Eutectic Solvents Based Choline Chloride for Enzymatic Biodiesel Production from Degumming Palm Oil

2020 ◽  
Vol 32 (4) ◽  
pp. 733-738 ◽  
Author(s):  
R. Manurung ◽  
Taslim ◽  
A.G.A. Siregar
Keyword(s):  
Palm Oil ◽  
Raw Materials ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
Biodiesel Production ◽  
Chloride Salt ◽  
Enzymatic Reactions ◽  
Potential Applications ◽  
Palm Oil Biodiesel

Deep eutectic solvents (DESs) have numerous potential applications as cosolvents. In this study, use of DES as organic solvents for enzymatic biodiesel production from degumming palm oil (DPO) was investigated. Deep eutectic solvent was synthesized using choline chloride salt (ChCl) compounds with glycerol and 1,2-propanediol. Deep eutectic solvent was characterized by viscosity, density, pH and freezing values, which were tested for effectiveness by enzymatic reactions for the production of palm biodiesel with raw materials DPO. Deep eutectic solvent of ChCl and glycerol produced the highest biodiesel yield (98.98%); weight of DES was only 0.5 % of that of the oil. In addition, the use of DES maintained the activity and stability of novozym enzymes, which was assessed as the yield until the 6th usage, which was 95.07 % biodiesel yield compared with the yield without using DES. Hence, using DES, glycerol in enzymatic biodiesel production had high potentiality as an organic solvent for palm oil biodiesel production

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