Ni-Pt/γ-Al<sub>2</sub>O<sub>3</sub>催化剂用于甲基环己烷催化脱氢的研究

王锋; 杨运泉; 王威燕

Ni-Pt/γ-Al₂O₃催化剂用于甲基环己烷催化脱氢的研究

1.
湘潭大学化工学院, 湖南湘潭 411105;
2.
湖南城市学院化学与环境工程学院, 湖南益阳 413000

基金项目: 湖南省教育厅高校创新平台开放基金(10K062); 教育部化工过程模拟与优化工程研究中心开放基金(2008HGZX02); 湖南省研究生科研创新项目(CX2010B258)。

详细信息

通讯作者:
杨运泉,教授,Tel:0731-58298581;E-mail:yangyunquan@xtu.edu.cn。

中图分类号: TQ426
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- 被引次数: 0
出版历程
- 收稿日期: 2011-10-27
- 修回日期: 2012-01-04
- 刊出日期: 2012-09-29

Catalytic performance of Ni-Pt/γ-Al₂O₃ in methylcyclohexane dehydrogenation

1.
College of Chemical Engineering, Xiangtan University, Xiangtan 411105, China;
2.
College of Chemical and Environmental Engineering, Hunan City University, Yiyang 413000, China

摘要

摘要: 采用自制的比表面积为349 m²/g的纳米膜γ-Al₂O₃为载体,用等体积浸渍法制备了Ni-Pt/γ-Al₂O₃催化剂,采用比表面积测定、X射线衍射、扫描电镜和透射电镜等手段对所制备的催化剂进行了表征。利用微型连续管式反应器与气相色谱联用装置,考察了Ni-Pt/γ-Al₂O₃催化剂对甲基环己烷(MCH)气相脱氢的催化性能。结果表明,使用20%Ni-0.5%Pt/γ-Al₂O₃催化剂,在反应温度350℃,混合进样体积空速252 h^-1条件下,甲苯转化率达到96.99%,选择性接近100%。
- 甲基环己烷 /
- 脱氢反应 /
- Ni-Pt双金属催化剂 /
- &gamma /
- -氧化铝 /
- 纳米膜
Abstract: A Ni-Pt bimetal catalyst (Ni-Pt/γ-Al₂O₃) supported on self-synthesized γ-Al₂O₃ nano-film with a surface area of 349 m²/g was prepared via conventional impregnation method. The catalyst was characterized by BET, XRD, SEM and TEM and its performance in methylcyclohexane (MCH) dehydrogenation was evaluated in a fixed-bed microreactor connecting with a gas chromatograph. The results showed that under 350℃ and a volume gas space velocity of 252 h^-1, the conversion of MCH over the 20%Ni-0.5%Pt/γ-Al₂O₃ catalyst reaches 96.99% and the selectivity to toluene approaches 100%.
- methylcyclohexane /
- dehydrogenation /
- Ni-Pt bimetallic catalysts /
- &gamma /
- -alumina /
- nano-film

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参考文献(25)

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