| 梁均方,郭锐,杨锡尧.MCM-41分子筛负载钼钴系催化剂的程序升温硫化研究[J].分子催化,2002,(1):15-18 |
| MCM-41分子筛负载钼钴系催化剂的程序升温硫化研究 |
| TPS Study of MCM-41 Supported Mo-Co Catalysts |
| 修订日期：2001-05-28 |
| DOI： |
| 中文关键词: MCM－41分子筛 Co－Mo催化剂 程序升温硫化 负载型钼钴催化剂 石油 加氢脱硫 |
| 英文关键词:MCM 41 molecular sieve,Co\|Mo catalysts,Temperature\|Programmed Sulfidization (TPS) |
| 基金项目:北京石油化工科学研究院资助课题 |
| 梁均方 郭锐 杨锡尧 |
北京大学化学与分子工程学院 北京100871
(梁均方，郭锐)
，北京大学化学与分子工程学院 北京100871(杨锡尧)
|
| 摘要点击次数: 1223 |
| 全文下载次数: 16 |
| 中文摘要: |
| 采用程序升温硫化（TPS）技术，研究了负载于MCM－41分子筛的钼钴系催化剂的性能，根据TPOS结果可知，（1）载体和MoO3相互作用的强度顺序如下：Al2O3＞Al2O3-MCM-41＞MCM－41＞TiO2－MCM－41，说明TiO2具有削弱MCM－41和MoO3作用的能力；而Al2O3则相反，它增加了MoO3和MCM－41的相互作用。（2）助剂CoO对负载于未经改性的MCM－41载体上的MoO3的硫化没有明显的促进作用，这和以Al2O3为载体的情况下不同，在Al2O3上，MoO3和CoO可能生成Co-Mo－O复合相，从而促进了MoO3的硫化。（3）助剂CoO对负载于经TiO2和Al2O3改性的MCM－41上的MoO3的硫化起了促进作用。 |
| 英文摘要: |
| The characters of MoO 3 and MoO 3\|CoO supported on meso\|porous molecular sieve MCM 41 and modified MCM 41 were studied by temperature\|programmed sulfidization(TPS) technique. The results of TPS indicate that: (1) The order of the interaction intensity of MoO 3 with supports are as follows: \{Al\-2O\-3>\}Al\-2O\-3\|MCM 41>MCM 41>TiO\-2\|MCM 41, thus it can be deduced that TiO\-2 weakens the interaction of MoO 3 with MCM 41, while Al\-2O\-3 strengthens such interaction. (2) On Al\-2O\-3 support, MoO 3 may interact with CoO to form Co\|Mo\|O composite phase, however, unlike Al\-2O\-3, on MCM 41 support, CoO does not obviously affect the character of MoO 3. (3) CoO accelerates the sulfidization of MoO 3 on TiO\-2 and Al\-2O\-3 modified MCM 41. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
