Chinese Journal of Catalysis ›› 2008, Vol. 29 ›› Issue (9): 921-927.

• Articles • Previous Articles     Next Articles

Activation and Hydrodesulfurization Activity of MoO3/Al2O3 Catalyst Presulfided by Ammonium Thiosulfate

GE Hui1,2, LI Xuekuan1*, WANG Jianguo1, QIN Zhangfeng1, L Zhanjun1, YANG Ying1   

  1. 1 Institute of Coal Chemistry, The Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China; 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2008-09-25 Online:2008-09-25 Published:2012-07-19

Abstract: The MoO3/γ-Al2O3 catalyst presulfided by ammonium thiosulfate exhibite d higher activity than by dimethlydisulfide. It was attributed to the formation of active type Ⅱ MoS2 phase and the increase of sulfidation degree in (NH4) 2S2O3 presulfided catalysts. The interaction of Mo with support in (NH4) 2 S2O3 presulfided catalysts was depressed by the sulfate species, which is a derivative of (NH4)2S2O3.

Key words: molybdenum oxide, ammonium thiosulfate, presulfidation, activation, thiophene, hydrodesufurization