Modification of activated carbon with tetrafluoroboric acid and its performance in adsorption desulfurization of dibenzothiophene

WANG Xiao-jing; LIU Chao; DONG Yue; LI Fa-tang; ZHAO Jun; LI Yu-pei

Volume 43 Issue 05

May 2015

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Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(05): 607-613

WANG Xiao-jing, LIU Chao, DONG Yue, LI Fa-tang, ZHAO Jun, LI Yu-pei. Modification of activated carbon with tetrafluoroboric acid and its performance in adsorption desulfurization of dibenzothiophene[J]. Journal of Fuel Chemistry and Technology, 2015, 43(05): 607-613.

Citation:

WANG Xiao-jing, LIU Chao, DONG Yue, LI Fa-tang, ZHAO Jun, LI Yu-pei. Modification of activated carbon with tetrafluoroboric acid and its performance in adsorption desulfurization of dibenzothiophene[J]. Journal of Fuel Chemistry and Technology, 2015, 43(05): 607-613.

Citation:

WANG Xiao-jing, LIU Chao, DONG Yue, LI Fa-tang, ZHAO Jun, LI Yu-pei. Modification of activated carbon with tetrafluoroboric acid and its performance in adsorption desulfurization of dibenzothiophene[J]. Journal of Fuel Chemistry and Technology, 2015, 43(05): 607-613.

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Modification of activated carbon with tetrafluoroboric acid and its performance in adsorption desulfurization of dibenzothiophene

1.
College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China;
2.
College of Gemmology and Material Technics, Shijiazhuang University of Economic, Shijiazhuang 050031, China

Received Date: 2014-10-29
Publish Date: 2015-05-30

Abstract

Abstract

The activated carbon adsorbent was modified with tetrafluoroboric acid (HBF₄) by impregnation and characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS) and N₂ physisorption. The performance of modified activated carbon in adsorption desulfurization of dibenzothiophene (DBT) in model diesel fuel was investigated and the influences of HBF₄ concentration, calcination temperature and the initial DBT concentration on the sulfur removal efficiency were considered. The results show that the adsorbent modified with 0.5% HBF₄ solution and calcined at 140 ℃ performs best in DBT desulfurization; when the adsorbent/oil ratio is 1:100, the HBF₄-modified adsorbent exhibits an adsorption capacity of 352 mg/g, which is 72.5% higher than that of the unmodified activated carbon.
- adsorptive desulfurization,
- modified activated carbon,
- tetrafluoroboric acid,
- dibenzothiophene

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References(22)

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