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镧对V2O5/γ-Al2O3催化剂在异丁烷脱氢中活性的影响
The Effect of La Doped on V2O5/γ-A12O3 Catalyst for Activity in the Dehydrogenation of Isobutane
【摘要】 V2O5/γ－Al2O3是用于异丁烷脱氢的新型催化剂，引入适量的镧不仅可改善活性组分的分散度，提高催化脱氢活性，而且还增强了催化剂的抗积炭能力．通过FTIR，BET，TG，TPR和TEM等手段研究了镧对催化剂性能的影响．
【Abstract】 Abstract V2O5/γ-Al2O3 is a new catalyst for the isobutane dehydrogenation. It was found that the dehy-drogenation activity of catalysis and the action of coke can be improved by adding appropriate La. Thestructure and surface state of La-doped V2O5/γ-Al2O3 catalysts were characterized by FTIR, BET, TG,TPR and TPR. The result showed that the changes of dispersion and reduction property of active compo-nents were quite obvious after adding La.
【关键词】 异丁烷；
脱氢；
氧化镧；
五氧化二钒；
【Key words】 Isobutane； Dehydrogenation； Lanthanum oxide； Vanadium pentaoxide；
【Key words】 Isobutane； Dehydrogenation； Lanthanum oxide； Vanadium pentaoxide；
【基金】 国家自然科学基金（批准号：29873019）资助．
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2002年05期
- 【分类号】O643.3
- 【被引频次】31
- 【下载频次】270