| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 51808 | Catalysis Communications | 2008 | 5 Pages |
Abstract
Ammonium thiosulfate ((NH4)2S2O3) was used as an ex situ sulfiding agent to pretreat Mo/Al2O3 catalyst through impregnation. After H2 activation, Mo/Al2O3 presulfided with (NH4)2S2O3 exhibits much higher catalytic activity in thiophene hydrodesulfurization (HDS) than Mo/Al2O3 in situ sulfided by dimethyl disulfide. Through (NH4)2S2O3 presulfidation, Al2O3 support is modified by sulfate groups, leading to a decrease of interaction between Mo and support; this promotes the formation of multi-layer type II MoS2 that contributes to the high HDS activity of the ex situ presulfided Mo/Al2O3 catalyst.
Related Topics
Physical Sciences and Engineering
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Catalysis
Authors
Hui Ge, Xuekuan Li, Zhangfeng Qin, Zhanjun Lü, Jianguo Wang,