发明授权
- 专利标题： Pretreatment method for C.sub.8 aromatic isomerization process
- 专利标题（中）： C8芳族异构化方法的预处理方法
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申请号： US997831申请日： 1992-12-29
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公开(公告)号： US5321184A公开(公告)日： 1994-06-14
- 发明人: Chi-Chu D. Low , Randy J. Lawson , Paul J. Kuchar , Gail L. Gray
- 申请人： Chi-Chu D. Low , Randy J. Lawson , Paul J. Kuchar , Gail L. Gray
- 申请人地址： IL Des Plaines
- 专利权人： UOP
- 当前专利权人： UOP
- 当前专利权人地址： IL Des Plaines
- 主分类号： C07C5/27
- IPC分类号： C07C5/27 ; C07C5/22
摘要：
A pretreatment method for a C.sub.8 aromatic isomerization process wherein the isomerization catalyst is initially contacted with a C.sub.8 aromatic feedstock under high severity isomerization conditions for a period of time sufficient to deposit a substantial amount to carbonaceous material on the catalyst. After pretreatment, the carbon-laden catalyst continues to be contacted by the C.sub.8 aromatic feedstock under less severe conditions than that of the pretreatment mode of operation.
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