☆ 4.7 Article

Design and synthesis of W-containing mesoporous material with excellent catalytic activity for the oxidation of 4,6-DMDBT in fuels

CHEMICAL ENGINEERING JOURNAL (2015)

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期刊

CHEMICAL ENGINEERING JOURNAL
卷 280, 期 -, 页码 256-264

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ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.05.092

关键词

Mesoporous material; Oxidative desulfurization; 4,6-DMDBT; Polyoxometallate; Functionalized ionic liquid

类别

Engineering, Environmental Engineering, Chemical

资金

  1. National Nature Science Foundation of China [21276117, 21376111, 21406092]
  2. Six Big Talent Peak in Jiangsu province [JNHB-004]
  3. Doctoral Innovation Fund of Jiangsu Province [KYLX_1066]
  4. State Key Laboratory of Heavy Oil Processing
  5. Natural Science Foundation of Hainan [214029]

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A series of tungsten-containing mesoporous catalysts have been designed and synthesized with polyoxometalate ionic liquid template. The catalysts were characterized by thermogravimetric (TG), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), N-2 adsorption-desorption, X-ray photoelectron spectroscopy (XPS) and transmission electron micrographs (TEM) analysis. The experimental results demonstrated that a channel-like mesopores with high dispersion of tungsten species were obtained. The catalysts exhibited high catalytic efficiency in removal of the most refractory 4,6-DMDBT in fuels. The removal of 4,6-DMDBT could reached 100% with 15 mg catalyst in 70 min while the n(O/S) is 3 at 60 degrees C. After recycling for 6 times, the efficiency of the desulfurization system still remained 100%. In addition, the removal of BT and DBT could also achieve 100% under the same conditions, which means the catalyst had a promising prospect for industrial application. (C) 2015 Elsevier B.V. All rights reserved.

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