Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (24): 3037-3042.DOI: 10.6023/A1104251 Previous Articles    

Note

多周期脱硫/再生对脱硫剂Ce-Fe/ZnO表面结构及再生性能影响

邵纯红*,1, 李芬2, 王路3, 庞静1, 王伟1   

  1. (1黑龙江工程学院土木与建筑工程学院 哈尔滨 150050)
    (2哈尔滨理工大学化学与环境工程学院 哈尔滨 150040)
    (3哈尔滨工业大学食品科学与工程学院 哈尔滨 150090)
  • 投稿日期:2011-04-25 修回日期:2011-09-16 发布日期:2011-09-26
  • 通讯作者: 邵纯红 E-mail:2004hongcs@126.com
  • 基金资助:

    室温除臭剂的研制及除臭机理研究;纳米室温脱硫剂再生性研究

Effect of Multi-cycle Desulfurization and Regeneration on Surface Structure and Regeneration Performance of Desulfurizer Ce-Fe/ZnO

Shao Chunhong*,1; Li Fen2; Wang Lu3; Pang Jing1; Wang Wei1   

  1. (1 Civil Engineering Department, Heilongjiang Institute of Technology, Harbin 150050)
    (2 School of Chemistry and Environment Engineering, Harbin University of Science and Technology, Harbin 150040)
    (3Department of Food Science and Engineering, Harbin Institute of Technology, Harbin 150090)
  • Received:2011-04-25 Revised:2011-09-16 Published:2011-09-26
  • Contact: shao chunhong E-mail:2004hongcs@126.com

The micro structure of CFZ desulfurizer after desulfurization and regeneration in multi-cycle has been characterized by means of transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectrometry (XPS). The variation of the multi-cycle desulfurization and regeneration structure of desulfurzer has been analyzed as well. Therefore, with a view of micro structure, the effect of the variation of desulfurizer structure upon the performance of desulfurizer has been observed. It is demonstrated that the morphology was not changed greatly, the specific surface area decreased to 66.8%. However, the distributions of pores has been modified a great deal, and apparently, the larger and smaller pore sizes appeared to reduce conspicuously, and the pores of 10~50 mm increased up to 44.6%. During the regeneration, the sulfate has been produced. It is proven that the structure of desulfurizer was not modified too much after regeneration desulfurization from 2 to 5 times of regeneration, and the performance of desulfurizer reached to stability. Therefore, it is concluded that the main factors to the perfommance of the desulfurizer are of both the surface structure of the desulfurizer and the coverage of desulferizer surface with the sulfate in regeneration. And the accumulated sulfur capacity is of 12.8% after six-times of desulfurization and five-times of regeneration, which is 5.56 times that of fresh desulfurizer in one time of desulfurization.

Key words: Ce doped, Fe doped, zinc oxide, ambient temperature, regeneration