Extractive-Catalytic Oxidative Desulfurization with Graphene Oxide-Based Heteropolyacid Catalysts: Investigation of Affective Parameters and Kinetic Modeling

2018 ◽  
Vol 149 (1) ◽  
pp. 259-271 ◽  
Author(s):  
Azam Khodadadi Dizaji ◽  
Hamid Reza Mortaheb ◽  
Babak Mokhtarani
Keyword(s):  
Graphene Oxide ◽  
Kinetic Modeling ◽  
Oxidative Desulfurization ◽  
Catalytic Oxidative Desulfurization

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.

Catalytic Oxidative Desulfurization of Gasoline Using Ionic Liquid Emulsion System

2011 ◽  
Vol 50 (24) ◽  
pp. 13686-13692 ◽  
Author(s):  
Jianhua Ge ◽  
Yuming Zhou ◽  
Yong Yang ◽  
Mengwei Xue
Keyword(s):  
Ionic Liquid ◽  
Oxidative Desulfurization ◽  
Emulsion System ◽  
Catalytic Oxidative Desulfurization ◽  
Liquid Emulsion

Catalytic Oxidative Desulfurization of Fuel by H2O2 In Situ Produced via Oxidation of 2-Propanol

2012 ◽  
Vol 51 (13) ◽  
pp. 4868-4874 ◽  
Author(s):  
Hong-Xing Zhang ◽  
Jia-Jun Gao ◽  
Hong Meng ◽  
Ying-zhou Lu ◽  
Chun-Xi Li
Keyword(s):  
Oxidative Desulfurization ◽  
Catalytic Oxidative Desulfurization

Lipophilicity of amphiphilic phosphotungstates matters in catalytic oxidative desulfurization of oil by H2O2

Fuel ◽  
2019 ◽  
Vol 253 ◽  
pp. 802-810 ◽  
Author(s):  
Luyang Li ◽  
Yingzhou Lu ◽  
Hong Meng ◽  
Chunxi Li
Keyword(s):  
Oxidative Desulfurization ◽  
Catalytic Oxidative Desulfurization

Iron Oxide Catalyst for Oxidative Desulfurization of Model Diesel Fuel

2020 ◽  
Vol 1010 ◽  
pp. 418-423
Author(s):  
Nor Atiq Syakila Mohd Nazmi ◽  
Wan Nazwanie Wan Abdullah ◽  
Farook Adam ◽  
Wan Nur Aini Wan Mokhtar ◽  
Noor Fatimah Yahaya ◽  
...  
Keyword(s):  
Iron Oxide ◽  
New Technology ◽  
Oxidative Desulfurization ◽  
Impregnation Method ◽  
X Ray ◽  
Diesel Fuels ◽  
Extraction Solvent ◽  
Tert Butyl Hydroperoxide ◽  
Catalytic Oxidative Desulfurization ◽  
Model Diesel

— The catalytic oxidative desulfurization (Cat-ODS) process has been introduced as a new technology to achieve ultra-low sulphur levels in diesel fuels. In this study, the performance of the alumina supported iron oxide based catalysts doped with cobalt, synthesized via wet impregnation method on the Cat-ODS of the model diesel with the total sulphur 500ppm was investigated using tert-butyl hydroperoxide (TBHP) as an oxidizing agent and N,N-dimethylformamide as an extraction solvent. A series of dopant was being screened. Co/Fe-Al2O3 (10:90) and Co/Fe-Al2O3 (20:80) prepared at 400°C. Overall, the catalytic activity decreased as dopant ratio increased. Catalyst with 10 wt% of Co was successfully removed 96% of thiophene, 100% of DBT and 92% of 4,6-DMDBT in model diesel. Further investigation, potential catalyst that calcined at 400°C contributed higher sulphur removal compared to the catalyst calcined at 500°C. X-ray diffraction analysis (XRD) result showed that Co/Fe-Al2O3 (10:90) prepared at 400°C was amorphous, while micrograph of the field emission scanning electron microscopy (FESEM) illustrated an inhomogeneous distribution of various particle sizes. The energy dispersive X-ray analysis (EDX) result have confirmed the presence of Fe and Co in all of the prepared catalyst.

Oxidative desulfurization of dibenzothiophene using a catalyst of molybdenum supported on modified medicinal stone

RSC Advances ◽  
2016 ◽  
Vol 6 (21) ◽  
pp. 17036-17045 ◽  
Author(s):  
Lu Qiu ◽  
Yan Cheng ◽  
Chunping Yang ◽  
Guangming Zeng ◽  
Zhiyong Long ◽  
...  
Keyword(s):  
Oxidative Desulfurization ◽  
Catalytic Oxidative Desulfurization ◽  
Model Oil

In this paper, the performance of catalytic oxidative desulfurization from model oil was studied using a catalyst of molybdenum supported on modified medicinal stone (Mo/MMS).

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