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 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

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

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

scholarly journals Evaluation of nitrogen effect on ultrasound-assisted oxidative desulfurization process

2014 ◽  
Vol 126 ◽  
pp. 521-527 ◽  
Author(s):  
Matheus A.G. Nunes ◽  
Paola A. Mello ◽  
Cezar A. Bizzi ◽  
Lisarb O. Diehl ◽  
Elizabeth M. Moreira ◽  
...  
Keyword(s):  
Oxidative Desulfurization ◽  
Nitrogen Effect ◽  
Desulfurization Process ◽  
Ultrasound Assisted

scholarly journals Optimized Ultrasound-Assisted Oxidative Desulfurization Process of Simulated Fuels over Activated Carbon-Supported Phosphotungstic Acid

2018 ◽  
Vol 156 ◽  
pp. 03045 ◽  
Author(s):  
Peniel Jean Gildo ◽  
Nathaniel Dugos ◽  
Susan Roces ◽  
Meng-Wei Wan
Keyword(s):  
Design Of Experiment ◽  
Raw Materials ◽  
Oxidative Desulfurization ◽  
Calorific Value ◽  
Simulated Fuel ◽  
Fuel Oils ◽  
Desulfurization Process ◽  
Ultrasound Assisted ◽  
Face Centered ◽  
Low Sulfur

Recent technological advancements respond to the call to minimize/eliminate emissions to the atmosphere. However, on the average, fuel oils which is one of the major raw materials, is found to increase in sulfur concentration due to a phenomenon called thermal maturation. As such, a deeper desulfurization process is needed to obtain low/ultra-low sulfur fuel oils. In the present study, the ultrasound assisted oxidative desulfurization (UAOD) processes using the H2O2 and HPW-AC oxidizing system applied to simulated fuel (~2800 ppm sulfur in the form of dibenzothiophene, benzothiophene, and thiophene dissolved in toluene), were optimized. After the pre-saturation of the HPW-AC with the simulated fuel, H2O2 was added just before the reaction was commenced under ultrasonic irradiation. After the application of both 2k-factorial design of experiment for screening and Face-Centered Design of Experiment for optimization, it was found that 25.52 wt% of H2O2 concentration, 983.9 mg of catalyst dose, 9.52 mL aqueous phase per 10 mL of the organic phase and 76.36 minutes of ultrasonication time would render 94.74% oxidation of the sulfur compounds in the simulated fuel. After the application of the optimized parameters to kerosene and employing a 4-cycle extraction using acetonitrile, 99% of the original sulfur content were removed from the kerosene using the UAOD optimized parameters. The desulfurization process resulted in a low-sulfur kerosene which retained its basic fuel properties such as density, viscosity and calorific value.

Sign in / Sign up

Export Citation Format

Share Document