CO<sub>2</sub>加氢合成甲醇Cu/ZrO<sub>2</sub>催化剂的失活因素

白绍芬; 刘顺; 刘欣梅

CO₂加氢合成甲醇Cu/ZrO₂催化剂的失活因素

中国石油大学(华东)重质油加工国家重点实验室, CNPC催化重点实验室, 山东青岛 266555

详细信息

通讯作者:
刘欣梅,Fax:0532-86981787;E-mail:lxmei@upc.edu.cn

中图分类号: TQ426.94
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出版历程
- 收稿日期: 2012-04-05
- 修回日期: 2012-06-04
- 刊出日期: 2012-11-30

Deactivation of Cu/ZrO₂ catalyst for methanol synthesis from CO₂ hydrogenation

State Key Laboratory for Heavy Oil Processing, Key Laboratory of Catalysis, CNPC, China University of Petroleum(East China), Qingdao 266555, China

摘要

摘要: 采用低温氮气吸脱附、X射线衍射(XRD)、电镜(TEM)以及热重差热(TG-DSC)等手段,对不同反应时间下Cu/ZrO₂催化剂的物理结构、微观形貌以及积炭情况进行了表征,分析了催化剂的失活原因。结果表明,造成催化剂失活的主要因素是活性组分烧结;其次,表面积炭覆盖其活性中心也造成催化剂活性在一定程度上的降低;而催化剂比表面积对其活性的影响较小。
- Cu/ZrO₂催化剂 /
- 甲醇合成 /
- 失活因素
Abstract: The physical structure, microstructure and carbonaceous deposition of Cu/ZrO₂ catalysts for methanol synthesis from CO₂ hydrogenation were characterized by nitrogen sorption, X-ray diffraction (XRD), transmission electron microscope (TEM), and thermogravimetry and differential scanning calorimetry (TG-DSC) techniques. The results showed that the sintering of active components is the major factor for catalyst deactivation and the carbonaceous deposition is in the next place; the surface area has little effect on catalyst activation.
- Cu/ZrO₂ catalyst /
- methanol synthesis /
- deactivation factors

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参考文献(18)

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