Synthesis and characterization of phosphotungstic acid/activated carbon as a novel ultrasound oxidative desulfurization catalyst

Liyan LIU, Yu ZHANG, Wei TAN

PDF(202 KB)
PDF(202 KB)
Front. Chem. Sci. Eng. ›› 2013, Vol. 7 ›› Issue (4) : 422-427. DOI: 10.1007/s11705-013-1353-2
RESEARCH ARTICLE

Synthesis and characterization of phosphotungstic acid/activated carbon as a novel ultrasound oxidative desulfurization catalyst

Author information +
History +

Abstract

Phosphotungstic acid/activated carbon (PTA/AC) catalysts with various AC sizes or PTA content have been synthesized and characterized by N2 physisorption, X-ray diffraction, Fourier transform infrared spectroscopy and temperature programmed desorption of ammonia. These catalysts were then evaluated in terms of the removal of dibenzothiophene (DBT) by ultrasound-assisted oxidative desulfurization process. The results showed that the DBT conversion obviously increased with the decrease of AC support size and the increase of PTA content. After supporting PTA on AC, the DBT conversion can be improved by 38.9% after ultrasound irradiation for 10 min. In addition, the stability tests of PTA/AC showed that the catalytic oxidative activity of PTA/AC was nearly kept constant after ultrasound irradiation for 20 min, which makes it a promising catalyst to use in ultrasound-assisted oxidative desulfurization process.

Keywords

phosphotungstic acid / activated carbon / ultrasound-assisted oxidative desulfurization

Cite this article

Download citation ▾
Liyan LIU, Yu ZHANG, Wei TAN. Synthesis and characterization of phosphotungstic acid/activated carbon as a novel ultrasound oxidative desulfurization catalyst. Front Chem Sci Eng, 2013, 7(4): 422‒427 https://doi.org/10.1007/s11705-013-1353-2

References

[1]
Collins F M, Lucy A R, Sharp C. Oxidative desulphurisation of oils via hydrogen peroxide and heteropolyanion catalysis. Journal of Molecular Catalysis A Chemical, 1997, 117(1): 397–403
CrossRef Google scholar
[2]
Campos-Martin J M, Capel-Sanchez M C, Perez-Presas P, Fierro J L G. Highly efficient deep desulfurization of fuels by chemical oxidation. Green Chemistry, 2004, 6(11): 557–562
CrossRef Google scholar
[3]
Campos-Martin J M, Capel-Sanchez M C, Perez-Presas P, Fierro J L G. Oxidative processes of desulfurization of liquid fuels. Journal of Chemical Technology and Biotechnology (Oxford, Oxfordshire), 2010, 85(7): 879–890
CrossRef Google scholar
[4]
Srivastava V C. An evaluation of desulfurization technologies for sulfur removal from liquid fuels. RSC Advances, 2012, 2(3): 759–783
CrossRef Google scholar
[5]
Patrick S T, James T K, John W E. Desulfurization of fuel oil by oxidation and extraction. 1. Enhancement of extraction oil yield. Industrial & Engineering Chemistry Research, 1990, 29(3): 321–324
CrossRef Google scholar
[6]
Shujiro O, Takeshi N, Noriko T, Weihua Q, Atsushi I, Tamotsu I, Toshiaki K. Oxidative desulfurization of light gas oil and vacuum gas oil by oxidation and solvent extraction. Energy & Fuels, 2000, 14(6): 1232–1239
CrossRef Google scholar
[7]
Wang D H, Qian E W, Amano H, Okata K, Ishihara A, Kabe T. Oxidative desulfurization of fuel oil: Part I. Oxidation of dibenzothiophenes using tert-butyl hydroperoxide. Applied Catalysis A, General, 2003, 253(1): 91–99
CrossRef Google scholar
[8]
Yu G X, Lu S X, Chen H, Zhu Z N. Oxidative desulfurization of diesel fuels with hydrogen peroxide in the presence of activated carbon and formic acid. Energy & Fuels, 2005, 19(2): 447–452
CrossRef Google scholar
[9]
Yu G X, Lu S X, Chen H, Zhu Z N. Diesel fuel desulfurization with hydrogen peroxide promoted by formic acid and catalyzed by activated carbon. Carbon, 2005, 43(11): 2285–2294
CrossRef Google scholar
[10]
Mei H, Mei B, Yen T F. A new method for obtaining ultra-low sulfur diesel fuel via ultrasound assisted oxidative desulfurization. Fuel, 2003, 82(4): 405–414
CrossRef Google scholar
[11]
Deshpande A, Bassi A, Prakash A. Ultrasound-assisted, base-catalyzed oxidation of 4,6-dimethyldibenzothiophene in a biphasic diesel-acetonitrile system. Energy & Fuels, 2005, 19(1): 28–34
CrossRef Google scholar
[12]
Wan M W, Yen T F. Enhance efficiency of tetraoctylammonium fluoride applied to ultrasound-assisted oxidative desulfurization (UAOD) process. Applied Catalysis A, General, 2007, 319: 237–245
CrossRef Google scholar
[13]
Dai Y C, Qi Y T, Zhao D Z, Zhang H C. An oxidative desulfurization method using ultrasound/Fenton's reagent for obtaining low and/or ultra-low sulfur diesel fuel. Fuel Processing Technology, 2008, 89(10): 927–932
CrossRef Google scholar
[14]
Wan M W, Yen T F. Portable continuous ultrasound-assisted oxidative desulfurization unit for marine gas oil. Energy & Fuels, 2008, 22(2): 1130–1135
CrossRef Google scholar
[15]
Mello P D A, Duarte F A, Nunes M A G, Alencar M S, Moreira E M, Korn M, Dressler V L, Flores É M M. Ultrasound-assisted oxidative process for sulfur removal from petroleum product feedstock. Ultrasonics Sonochemistry, 2009, 16(6): 732–736
CrossRef Google scholar
[16]
Duarte F A, Mello P D A, Bizzi C A, Nunes M A G, Moreira E M, Alencar M S, Motta H N, Dressler V L, Flores É M M. Sulfur removal from hydrotreated petroleum fractions using ultrasound-assisted oxidative desulfurization process. Fuel, 2011, 90(6): 2158–2164
CrossRef Google scholar
[17]
Gonzalez L A, Kracke P, Green W H, Tester J W, Shafer L M, Timko M T. Oxidative desulfurization of middle-distillate fuels using activated carbon and power ultrasound. Energy & Fuels, 2012, 26(8): 5164–5176
CrossRef Google scholar
[18]
Jalil P A, Al-Daous M A, Al-Arfaj A R A, Al-Amer A M, Beltramini J, Barri S A I. Characterization of tungstophosphoric acid supported on MCM-41 mesoporous silica using n-hexane cracking, benzene adsorption, and X-ray diffraction. Applied Catalysis A, General, 2001, 207(1): 159–171
CrossRef Google scholar
[19]
Chimienti M E, Pozzio L R, Caceres C V, Blanco M N. Tungstophosphoric and tungstosilicic acids on carbon as acidic catalysts. Applied Catalysis A, General, 2001, 208(1): 7–19
CrossRef Google scholar
[20]
Wang L. Study on desulfurization of oil catalyzed oxidation by supported heteropoly acid in microemulsion. Dissertation for the Doctoral Degree.Shandong: Ocean University of China, 2011, 31–32(in Chinese)
[21]
Tuziuti T, Yasui K, Sivakumar M, Lida Y, Miyoshi N. Correlation between acoustic cavitation noise and yield enhancement of sonochemical reaction by particle addition. Journal of Physical Chemistry A, 2005, 109(21): 4869–4872
CrossRef Google scholar
[22]
Liu L Y, Wen J J, Yang Y, Wei T. The influence of particle addition in the ultrasonic cavitation. Chemical Industry and Engineering, 2013, 30(1): 59–66 (in Chinese)
[23]
Timofeeva M N. Acid catalysis by heteropoly acids. Applied Catalysis A, General, 2003, 256(1): 19–35
CrossRef Google scholar

Acknowledgements

Financial supported by the Program for Changjiang Scholars and Innovative Research Teams in Universities (IRT0936).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
AI Summary AI Mindmap
PDF(202 KB)

Accesses

Citations

Detail

Sections
Recommended

/