发明申请
- 专利标题： Lightly branched higher olefin oligomerization with surface modified zeolite catalyst
- 专利标题（中）： 用表面改性沸石催化剂轻支化高级烯烃低聚
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申请号： US11973101申请日： 2007-10-05
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公开(公告)号： US20090093663A1公开(公告)日： 2009-04-09
- 发明人: Jane C. Cheng , Sal Miseo , Stuart L. Soled , John S. Buchanan , Jennifer S. Feeley
- 申请人： Jane C. Cheng , Sal Miseo , Stuart L. Soled , John S. Buchanan , Jennifer S. Feeley
- 主分类号： C07C2/12
- IPC分类号： C07C2/12
摘要：
A substantially surface-deactivated catalyst composition that is stable at least to 300° C. The catalyst includes a zeolite catalyst (e.g., ZSM-22, ZSM-23, or ZSM-57) having active internal Brönsted acid sites and a surface-deactivating amount of a rare earth or yttrium oxide (e.g., chosen from lanthanum oxide or lanthanides oxide). This catalyst is preferably used in a process for producing a higher olefin by oligomerizing a light olefin, wherein the process includes contacting a light olefin under oligomerization conditions with the substantially surface-deactivated catalyst composition.