Ultrasound assisted oxidative desulfurization of a model fuel using a deep eutectic solvent: Optimization and experimental design

2021 ◽  
pp. 108724
Author(s):  
Mehdi Mofidi ◽  
Shahrokh Shahhosseini
Keyword(s):  
Experimental Design ◽  
Deep Eutectic Solvent ◽  
Oxidative Desulfurization ◽  
Model Fuel ◽  
Ultrasound Assisted ◽  
Solvent Optimization

Ultrasound-assisted oxidative desulfurization of Arabian extra light oil (AXL) with molecular characterization of the sulfur compounds

Fuel ◽  
2021 ◽  
Vol 305 ◽  
pp. 121612
Author(s):  
Jiyuan Fan ◽  
Aiping Chen ◽  
Saumitra Saxena ◽  
Sundaramurthy Vedachalam ◽  
Ajay K. Dalai ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Oxidative Desulfurization ◽  
Sulfur Compounds ◽  
Light Oil ◽  
Ultrasound Assisted

Ultrasound-Assisted Oxidative Desulfurization of Diesel Fuel in H2O2/Heteropoly Acid/Solvent System

2014 ◽  
Vol 1033-1034 ◽  
pp. 85-89 ◽  
Author(s):  
Guo Xian Yu ◽  
Qian Zhong ◽  
Mei Jin ◽  
Ping Lu
Keyword(s):  
Sulfur Content ◽  
Ultrasonic Irradiation ◽  
Diesel Fuel ◽  
Oxidation Reaction ◽  
Heteropoly Acid ◽  
Oxidative Desulfurization ◽  
Solvent System ◽  
Oxidative Reaction ◽  
Solvent Systems ◽  
Ultrasound Assisted

Ultrasound-assisted oxidative desulfurization (UAODS) of diesel fuel in H2O2/Heteropoly acid/Solvent systems, was investigated. Effects of solvent, catalyst, ultrasound and reaction temperature on the oxidation desulfurization of diesel fuel were investigated. When MPA/oil was 2%wt, methanol/diesel fuel was 20%wt, ultrasound power was 400 W and ultrasound time was 10 min, the sulfur content of diesel fuel was decreased from 211 ppm to 19 ppm. The use of ultrasonic irradiation in H2O2/Heteropoly acid/Solvent system significantly improved the efficiency of the oxidation reaction, and solvent was helpful to make the oxidative reaction happen in the same one phase.

Deep eutectic solvent based ultrasound assisted emulsification microextraction for preconcentration and voltammetric determination of aflatoxin B1 in cereal samples

2021 ◽  
Vol 13 (7) ◽  
pp. 946-954
Author(s):  
Zeynab Zohdijamil ◽  
Seyed Ahmad Reza Ahmadi Afshar ◽  
Sadegh Khazalpour ◽  
Mahdi Hashemi
Keyword(s):  
Aflatoxin B1 ◽  
Deep Eutectic Solvent ◽  
Voltammetric Determination ◽  
Cereal Products ◽  
Cereal Samples ◽  
Ultrasound Assisted ◽  
Emulsification Microextraction

A new and simple deep eutectic solvent based ultrasound-assisted emulsification microextraction (DES-UAEME) procedure has been developed for preconcentration and voltammetric determination of aflatoxin B1 (AFB1) in cereal products.

Ultrasound-assisted oxidative desulfurization of bitumen

2017 ◽  
Vol 56 (7S1) ◽  
pp. 07JE03 ◽  
Author(s):  
Wan Mohamad Ikhwan bin Wan Kamal ◽  
Hirokazu Okawa ◽  
Takahiro Kato ◽  
Katsuyasu Sugawara
Keyword(s):  
Oxidative Desulfurization ◽  
Ultrasound Assisted

scholarly journals Ultrasound-Assisted Deep Eutectic Solvent Extraction of Anthocyanins from Blueberry Wine Residues: Optimization, Identification, and HepG2 Antitumor Activity

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5456
Author(s):  
Hongkun Xue ◽  
Jiaqi Tan ◽  
Qian Li ◽  
Jintian Tang ◽  
Xu Cai
Keyword(s):  
Solvent Extraction ◽  
Antitumor Activity ◽  
Deep Eutectic Solvent ◽  
Extraction Process ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Brewing Process ◽  
Ultrasound Assisted ◽  
Optimum Extraction ◽  
Better Than

Blueberry wine residues produced during the wine-brewing process contain abundant anthocyanins and other bioactive compounds. To extract anthocyanins from blueberry wine residues more efficiently, a novel procedure of ultrasound-assisted deep eutectic solvent extraction (UADESE) was proposed in this work. The extraction process was optimized by response surface methodology coupled with genetic algorithm. The optimum extraction parameters to achieve the highest yield of anthocyanins (9.32 ± 0.08 mg/g) from blueberry wine residues by UADESE were obtained at water content of 29%, ultrasonic power of 380 W, extraction temperature of 55 °C, and extraction time of 40 min. The AB-8 macroporous resin combined with Sephadex LH-20 techniques was used to purify the crude extract (CE) obtained under optimum extraction conditions and analyze the anthocyanins composition by HPLC-ESI-MS/MS. The cyanidin-3-rutinoside with purity of 92.81% was obtained. The HepG2 antitumor activity of CE was better than that of the purified anthocyanins component. Moreover, CE could increase the intracellular reactive oxygen species levels and the apoptosis, and arrest HepG2 cells in the S phases. These findings provided an effective and feasible method for anthocyanins extraction, and reduced the environmental burden of this waste.

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