摘要
在相同铂含量、不同碱性载体Ｐｔ／Ｋ－Ｌ，Ｐｔ／ＡｌＰＯ＿４－５催化剂上，以下已烷和甲基环戊烷反应分为探针，考察不同反应温度下，ｎ－Ｃ＿６和ＭＣＰ的反应产品分布。试验结果表明：（１）反应产品分布与反应温度有密切关系；（２）催化剂中碱性分子筛体孔道效应高温时表现更加充分；（３）出于ＡｌＰＯ＿４５载体呈中性，铂在其上分散较差，在高温时与碱性载体相比，烷烃芳构化活性、选择降低，反应产物分布也有时显差异。
The reaction product distribution of n-C_6 and methyl cyclopentane(MCP)on a series of Pt-catalysts with different basic supports at different temperatures have been studied.Resu- Its show:(1)product distribution is correlative with reaction temperature. (2)The effect of zeolites channel appears only at about 500℃.(3)Aromatization activity and selectivity of paraffin over Pt/AlPO_4-5 are lowered because AlPO_4-5 is nonbasic,and its product distribution is apparently different from that of basic support catalysts.
出处
《石油化工》
CSCD
北大核心
1994年第5期281-285,共5页
Petrochemical Technology
关键词
分子筛催化剂
烷烃
芳构化
孔道
L type zeolite
alkali supportsl paraffin aromatization
effect of zeolite
