Silicon poisoning of Pt/Al2O3 catalysts in naphtha reforming

被引：0
作者：
Souza, MOG
Reyes, P
Rangel, MC
机构：
[1] Univ Estado Bahia, Dept Ciencia Exatas & Terra, Salvador, BA, Brazil
[2] Univ Concepcion, Fac Ciencias Quim, Concepcion, Chile
[3] Univ Fed Bahia, Inst Quim, BR-40170280 Salvador, BA, Brazil
来源：
CATALYST DEACTIVATION 1999 | 1999年 / 126卷
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中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The silicon poisoning of a Pt/Al(2)O(3) catalyst was studied as a model system for industrial catalysts. Samples were contaminated using methyl- and phenyl-substituted polyoxysilane (MPSP) during the reforming of cyclohexane. It was found that silicon changes the chemisorption properties of platinum and does not affect its sinterization. However, coke has a more important effect in reducing the activity of the metallic function. On the other hand, silicon is harmful to the acid function, even in small amounts, suggesting that the poisoning is selective.
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页码：469 / 472
页数：4
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