| Pt－Sn－K／Al_2O_3丙烷脱氢催化剂组成的优化 |
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| 引用本文： | 王鉴,郭大为.Pt－Sn－K／Al_2O_3丙烷脱氢催化剂组成的优化[J].大庆石油学院学报,1996,20(1):54-56. |
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| 作者姓名： | 王鉴 郭大为 |
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| 摘 要： | Ｐｔ－Ｓｎ－Ｋ／Ａｌ２Ｏ３催化剂用于丙烷催化脱氢具有活性高、选择性好等特点，是目前开发出的最好的小分子烷烃催化脱氢催化剂之一。作者用常规浸渍法在γ－Ａｌ２Ｏ３上负载Ｐｔ，Ｓｎ和Ｋ等金属元素，制成一系列Ｐｔ－Ｓｎ－Ｋ／Ａｌ２Ｏ３催化剂；考察了在常压，６２０℃，进料为丙烷／氢气＝１∶１的混合气，气体体积空速为１５００ｈ－１的条件下，丙烷在这些催化剂上的脱氢反应，根据丙烯收率和选择性及其稳定性得出催化剂中各组分的最佳载量。结果表明：催化剂中适宜的Ｐｔ和Ｓｎ的质量分数分别为０．００４～０．０１０和０．００４～０．０１５，Ｋ的质量分数以不超过０．０２为宜。
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| 关 键 词： | 丙烷 丙烯 脱氢 催化剂 铂 氧化铝 |
OPTIMIZATION OF COMPOSITION OF Pt-Sn-K/Al_2O_3 CATALYST FOR DEHYDROGENATION OF PROPANE TO PROPENE |
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| Abstract: | Pt-Sn-K/Al2O3 is one of the most valuable catalysts for dehydrogenation of propane to propene because of its high activity and selectivity.A series of Pt-SnK/Al2O3 catalysts were prepared by impregnating γ-Al2O3 with Pt,Sn and K compounds.The dehydrogenation reactions of propane over these catalysts were studied at normal pressure, 620℃,C3H8/H2= 1:1(mol),and GHSV=1500 h-1.The results showed that the proper content of Pt and Sn was 0.004￣0.010 and 0.004～0.015 respectively.The amount of K in a catalyst should be kept with in 0.02(mass fraction). |
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| Keywords: | propane propene dehydrogenation catalyst platinum alumna |
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