Application of mesoporous silica gel in desulfurization of diesel oil via oxidation-adsorption process

XU Kang-wen; FENG Li-juan; WANG Jing-gang; LI Yu-hui; LI Chun-hu

Volume 40 Issue 08

Aug. 2012

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XU Kang-wen, FENG Li-juan, WANG Jing-gang, LI Yu-hui, LI Chun-hu. Application of mesoporous silica gel in desulfurization of diesel oil via oxidation-adsorption process[J]. Journal of Fuel Chemistry and Technology, 2012, (08): 1009-1013.

Citation:

XU Kang-wen, FENG Li-juan, WANG Jing-gang, LI Yu-hui, LI Chun-hu. Application of mesoporous silica gel in desulfurization of diesel oil via oxidation-adsorption process[J]. Journal of Fuel Chemistry and Technology, 2012, (08): 1009-1013.

Citation:

XU Kang-wen, FENG Li-juan, WANG Jing-gang, LI Yu-hui, LI Chun-hu. Application of mesoporous silica gel in desulfurization of diesel oil via oxidation-adsorption process[J]. Journal of Fuel Chemistry and Technology, 2012, (08): 1009-1013.

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Application of mesoporous silica gel in desulfurization of diesel oil via oxidation-adsorption process

College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China

Received Date: 2011-12-03
Rev Recd Date: 2012-03-19
Publish Date: 2012-08-31

Abstract

Abstract

The desulfurization of diesel oil was conducted via oxidation-adsorption process, using H₂O₂ as oxidant in the presence of amphiphilic catalyst and mesoporous silica-gel as the adsorbent. The fixed-bed dynamic adsorption method was employed to evaluate the oxidation-adsorption desulfurization capability of the catalysts and the effects of the property of silica-gel, oxidation and adsorption conditions on desulfurization efficiency were investigated. It was proved that the silica-gel possessed the mesoporous structure characterized by small-angle XRD and N₂ adsorption-desorption isotherm. Compared with adsorption process, oxidation-adsorption process could availably increase the adsorptive capacity and selectivity of silica-gel adsorbent to sulfur compounds in diesel oil.The sulfur removal efficiency remained as high as 85.89% when the volume ratio of diesel oil to silica-gel was 15. Sulfur removal efficiency reached up to 94.57% when adsorption temperature, space velocity and volume ratio of diesel oil to silica-gel were 40℃, 6.0 h^-1 and 1 respectively.
- mesoporous silica gel,
- oxidation-adsorption,
- desulfurization,
- diesel oil

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References(13)

References

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