http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Presulfidation and activation mechanism of Mo/Al2O3 catalyst sulfided by ammonium thiosulfate
Mingxing Tang,Xuekuan Li,Hui Ge,Weibin Fan,Guofu Wang,Zhanjun Lyu 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.8
Mo/Al2O3 catalyst was presulfided with (NH4)2S2O3 to elucidate presulfidation and activation mechanism. Itis illustrated that the Mo oxide is firstly partially sulfided during presulfidation and then in situ reduced into MoS2−x inactivation, and finally sulfided to active state during hydrodesulfurization (HDS). A synergistic effect between the S2− andS6+ ions in (NH4)2S2O3 produces a positive influence on the HDS performance. The S2− ions contribute to the sulfidationof Mo ions, while the S6+ species interact with Al2O3 support, weakening the interaction of active species with support.