scholarly journals Sulfur removal from hydrotreated petroleum fractions using ultrasound-assisted oxidative desulfurization process

Fuel ◽  
2011 ◽  
Vol 90 (6) ◽  
pp. 2158-2164 ◽  
Author(s):  
Fábio A. Duarte ◽  
Paola de A. Mello ◽  
Cezar A. Bizzi ◽  
Matheus A.G. Nunes ◽  
Elizabeth M. Moreira ◽  
...  
Keyword(s):  
Sulfur Removal ◽  
Oxidative Desulfurization ◽  
Petroleum Fractions ◽  
Desulfurization Process ◽  
Ultrasound Assisted

Oxidative Desulfurization of Dibenzothiophene Catalyzed by Polyoxometalate-Based Ionic Liquid

2014 ◽  
Vol 1033-1034 ◽  
pp. 65-69
Author(s):  
Min Wang ◽  
Qin Wu ◽  
Han Sheng Li ◽  
Yun Zhao ◽  
Qing Ze Jiao
Keyword(s):  
Ionic Liquid ◽  
Sulfonic Acid ◽  
Sulfur Removal ◽  
Oxidative Desulfurization ◽  
Ionization Mass ◽  
Thermogravimetric Analyzer ◽  
Catalytic Oxidative Desulfurization ◽  
Ionization Mass Spectrum ◽  
Electrospray Ionization Mass Spectrum ◽  
Desulfurization Process

A polyoxometalate-based ionic liquid, 1-(4-sulfonic acid) methylimidazolium phosphotungstate ([MIMBS]3PW12O40), was synthesized and characterized by Fourier transform infrared spectrum, nuclear magnetic resonance, electrospray ionization mass spectrum and thermogravimetric analyzer. [MIMBS]3PW12O40exhibited high activity for the extractive catalytic oxidative desulfurization process, together with H2O2and CH3CN/H2O. The sulfur removal of DBT could reach 99.9% under wild conditions, and the catalyst could be used three times with only a slight decline in activity.

The study of ultrasound-assisted oxidative desulfurization process applied to the utilization of pyrolysis oil from waste tires

2010 ◽  
Vol 18 (18) ◽  
pp. 1850-1858 ◽  
Author(s):  
Teng-Chien Chen ◽  
Yun-Hwei Shen ◽  
Wen-Jhy Lee ◽  
Chih-Chung Lin ◽  
Meng-Wei Wan
Keyword(s):  
Oxidative Desulfurization ◽  
Pyrolysis Oil ◽  
Waste Tires ◽  
Desulfurization Process ◽  
Ultrasound Assisted

Optimization of Thiophene Removal by an Ultrasound-Assisted Oxidative Desulfurization Process

2012 ◽  
Vol 29 (7) ◽  
pp. 623-629 ◽  
Author(s):  
Teng-Chien Chen ◽  
Yun-Hwei Shen ◽  
Wen-Jhy Lee ◽  
Chih-Chung Lin ◽  
Meng-Wei Wan
Keyword(s):  
Oxidative Desulfurization ◽  
Desulfurization Process ◽  
Ultrasound Assisted

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.

Prediction of dibenzothiophene conversion in the ultrasound assisted oxidative desulfurization process

2016 ◽  
Vol 34 (21) ◽  
pp. 1797-1802 ◽  
Author(s):  
Dunja Margeta ◽  
Željka Ujević Andrijić ◽  
Katica Sertić-Bionda
Keyword(s):  
Oxidative Desulfurization ◽  
Desulfurization Process ◽  
Ultrasound Assisted

Sulfur in Petroleum

2016 ◽  
pp. 1-52 ◽  
Author(s):  
Waqas Ahmad
Keyword(s):  
Ionic Liquids ◽  
Oxidative Desulfurization ◽  
Reactor Design ◽  
Organosulfur Compounds ◽  
Reaction Conditions ◽  
Adsorptive Desulfurization ◽  
Oxidative Desulphurization ◽  
Different Types ◽  
Desulfurization Process ◽  
Ultrasound Assisted

This chapter describes the occurrence of organosulfur compounds in petroleum, their detrimental effects and various techniques for removal of these compounds. The sole commercial desulfurization process i.e. HDS is broadly discussed in terms of reaction conditions, different types of catalysts used, reactor design and mechanistic pathways in the process. The shortcomings of HDS and needs for developing new desulfurization techniques is also described. Various newly developed research techniques for desulfurization are also discussed with their technical backgrounds, commercial overview, advantages and shortcomings in the light of literature reports. These techniques include, Adsorptive desulfurization, Bio-desulfurization, Precipitative desulfurization, and Oxidative desulfurization with its sub types like ODS using H2O2- Polyoxometalates (POM), ODS with Ionic liquids, Photo-oxidative desulphurization and Ultrasound Assisted ODS.

Butyl triphenyl phosphonium bromide as an effective catalyst for ultrasound assisted oxidative desulfurization process

2020 ◽  
Vol 28 ◽  
pp. 836-841
Author(s):  
Komal Desai ◽  
Siddh Bhatt ◽  
Swapnil Dharaskar ◽  
Ashish Unnarkat ◽  
Surendra Sasikumar Jampa ◽  
...  
Keyword(s):  
Oxidative Desulfurization ◽  
Phosphonium Bromide ◽  
Effective Catalyst ◽  
Triphenyl Phosphonium ◽  
Desulfurization Process ◽  
Ultrasound Assisted

Ultrasound-assisted oxidative desulfurization (UAOD) using phosphotungstic acid: effect of process parameters on sulfur removal

2012 ◽  
Vol 47 (1-3) ◽  
pp. 96-104 ◽  
Author(s):  
Meng-Wei Wan ◽  
Luisa Cyd Charisse Biel ◽  
Ming-Chun Lu ◽  
Rizalinda de Leon ◽  
Susan Arco
Keyword(s):  
Process Parameters ◽  
Phosphotungstic Acid ◽  
Sulfur Removal ◽  
Oxidative Desulfurization ◽  
Acid Effect ◽  
Ultrasound Assisted
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