Hydrodesulfurization activity of highly dispersed Co sulfide clusters prepared in zeolite cages |
| |
Authors: | Takeshi Kubota Hidenori Okamoto Yasuaki Okamoto |
| |
Affiliation: | (1) Department of Material Science, Shimane University, Matsue 690-8504, Japan |
| |
Abstract: | Zeolite-supported highly dispersed Co sulfide clusters are synthesized using Co(CO)3 (NO) as a precursor. The amount of Co inCoSx/zeolite anchored by a CVD technique increases as the Al/Si ratio of the zeolite increases, whereas the activity per Co atomdecreases
for thiophene hydrodesulfurization (HDS). When an Na-exchanged USY zeolite is used, the Co sulfide catalyst shows a muchhigher
HDS activity than a conventional Co—Mo/Al2 O3 catalyst. It is considered from XAFS and NO adsorption techniques that thehigh HDS activity of CoSx/USY-Na is due to an extremely high dispersion of Co sulfide clusters.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
Keywords: | highly dispersed Co sulfide clusters thiophene hydrodesulfurization (HDS) CVD method XAFS zeolite |
本文献已被 SpringerLink 等数据库收录! |