期刊论文

Yang, Y.-Q.(yangyunquan@xtu.edu.cn)

中文

燃料化学学报

0253-2409

2012

40

9

1128-1134

10.3969/j.issn.0253-2409.2012.09.017

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

本校为其他机构

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%。

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 °C 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%.