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Citation: SHANG Su-li, MI Jie, YU Meng, SHANGGUAN Ju. Regeneration characteristics of modified semi-coke supported Zn/Fe/Ce hot gas desulfurization sorbent in SO2 atmosphere[J]. Journal of Fuel Chemistry and Technology, ;2014, 42(1): 110-115. shu

Regeneration characteristics of modified semi-coke supported Zn/Fe/Ce hot gas desulfurization sorbent in SO2 atmosphere

  • 1.

    Key Laboratory of Coal Science and Technology of Shanxi Province and Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China

  • Corresponding author: MI Jie, 
  • Received Date: 11 May 2013
    Available Online: 29 July 2013

    Fund Project: 国家自然科学基金(51272170,21276172)。 (51272170,21276172)

  • The influences of temperature, sulfur dioxide concentration and space velocity on the regeneration behavior of modified semi-coke supported Fe/Zn/Ce sorbent were investigated in a quartz fixed-bed reactor of 20 mm diameter. The sorbents were prepared by co-precipitation method with the Zn/Fe/Ce molar ratio of 1.0:2.0:0.6 supported on the modified semi-coke. The changes of crystalline phase and morphology of the sorbent before and after regeneration were examined by X-ray diffraction and scanning electron microscopy. The surface area and pore volume of sorbents were characterized by N2 adsorption. The results show that the sorbent can be regenerated over 600 ℃ and the elemental sulfur is produced. The optimum regeneration temperature, SO2 concentration and space velocity are 700 ℃, 12% and 5 000 h-1, respectively.
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