Oxidative desulfurization of model diesel oil over Ti-containing molecular sieves using hydrogen peroxide

2007 ◽  
Vol 92 (1) ◽  
pp. 155-163 ◽  
Author(s):  
Suhua Cui ◽  
Feng Ma ◽  
Yaquan Wang
2014 ◽  
Vol 54 (4) ◽  
pp. 316-322 ◽  
Author(s):  
E. V. Rakhmanov ◽  
S. V. Baranova ◽  
Zixiao Wang ◽  
A. V. Tarakanova ◽  
S. V. Kardashev ◽  
...  

2009 ◽  
Vol 79-82 ◽  
pp. 1683-1686 ◽  
Author(s):  
Liang Wang ◽  
Chun Hu Li ◽  
Ying Fei Hou

This work presents the results obtained in the development of phosphotungstic acid/semi-coke catalysts in the oxidative desulfurization (ODS) process of diesel oil using hydrogen peroxide as the oxidizing agent. Phosphotungstic acid /semi-coke (60wt%) prepared by impregnation. These catalysts were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM), The effect of the amount of catalyst used , on the efficiency of desulfurization was investigated. In addtion. the diesel after oxidation and extraction was analyzed by GC-FPD for sulfur content. The chromatograph shows that virtually all the sulfur containing compounds in diesel were removed.


Author(s):  
Fang Wang ◽  
Guangjian Wang ◽  
Liancheng Bing ◽  
Yong Wang ◽  
Aixiu Tian ◽  
...  

AbstractAg modified mesoporous molecular sieves Ti-HMS were prepared by in-situ synthesis (Ag/Ti-HMS-I), deposition-precipitation method (Ag/Ti-HMS-D) and ultrasound-assisted impregnation methods (Ag/Ti-HMS-U), respectively. The catalytic performance of catalysts in the oxidative desulfurization(ODS) of benzothiophene with hydrogen peroxide (H2O2) has been investigated. The physicochemical properties of the catalysts were characterized by XRD, SEM, BET and FT-IR techniques. Experimental results showed that the catalyst Ag/Ti-HMS-U exhibited the best catalytic activity, and this maybe because the catalyst possessed relatively good mesoporous structure and high Ag dispersion. Under the best operating condition for the catalytic oxidative desulfurization: temperature 60 °C, atmospheric pressure, 0.1 g catalysts, 8 molar ratio of hydrogen peroxide to sulfur, using acetonitrile as extraction solvent for double extraction, the sulfur content in model diesel fuel (MDF) was reduced from 800 ppm to 17 ppm with 97.8% of total sulfur after 1 h.


2020 ◽  
Vol 5 (1) ◽  
pp. 244-251 ◽  
Author(s):  
Yulong Gu ◽  
Gan Ye ◽  
Wei Xu ◽  
Wei Zhou ◽  
Yinyong Sun

2019 ◽  
Vol 149 (7) ◽  
pp. 1888-1893 ◽  
Author(s):  
Lulu Sun ◽  
Ting Su ◽  
Pengcheng Li ◽  
Jiajia Xu ◽  
Naimeng Chen ◽  
...  

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