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| 论文编号: |
O120090124 |
| 第一作者所在部门: |
508组 |
| 中文论文题目: |
硫代硫酸铵预硫化的Mo/Al2O3催化剂加氢脱硫反应性能研究
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| 英文论文题目: |
Study on hydrodesulfurization of thiophene over Mo/Al2O3 catalyst presulfided by thiosulfate ammonium
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| 论文题目英文: |
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| 作者: |
葛 晖 李学宽 王建国 吕占军 秦张峰 周立公
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| 论文出处: |
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| 刊物名称: |
燃料化学学报
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| 年: |
2009
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| 卷: |
37 |
| 期: |
2 |
| 页: |
199-204 |
| 联系作者: |
李学宽 |
| 收录类别: |
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| 影响因子: |
0.85
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| 摘要: |
Ammonium thiosulfate as a novel sulfiding agent was used for presulfidation of hydrodesulfurization (HDS) catalysts. The presulfided Mo/Al2O3 catalysts with different molar ratios of S/Mo were prepared by impregnating Mo/Al2O3 catalysts with an aqueous solution of ammonium thiosulfate, followed by drying. Their characteristics of crystal phases, activation, and surface compositions were examined by X-ray diffraction, thermogravimetric analysis, and X-ray photoelectron spectroscopy. The S2– and S6+ in ammonium thiosulfate play different roles during the activation of presulfided catalysts. The S2– sulfides Mo and S6+ reacts with Al2O3 support, decreasing the interaction of support with the active metal. The collaboration between S2– and S6+ ions improves the sulfidation of MoO3. The best HDS performance was observed for the presulfided catalyst with S/Mo = 3. Its thiophene HDS activity is 17% higher than that of Mo/Al2O3 catalyst sulfided with H2S. |
| 英文摘要: |
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| 备注: |
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