发明授权
- 专利标题: Olefin oligomerization with surface modified zeolite
- 专利标题(中): 烯烃低聚与表面改性沸石
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申请号: US298340申请日: 1989-01-13
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公开(公告)号: US4855527A公开(公告)日: 1989-08-08
- 发明人: Nancy M. Page , Lewis B. Young
- 申请人: Nancy M. Page , Lewis B. Young
- 申请人地址: NY New York
- 专利权人: Mobil Oil Corporation
- 当前专利权人: Mobil Oil Corporation
- 当前专利权人地址: NY New York
- 主分类号: B01J29/18
- IPC分类号: B01J29/18 ; B01J29/70 ; C07C2/12 ; C07C2/66 ; C07C11/02 ; C10G29/28
摘要:
A process for producing substantially linear hydrocarbons by oligomerizing a lower olefin at elevated temperature and pressure which comprises contacting the lower olefin under oligomerization/polymerization conditions with siliceous acidic ZSM-23 zeolite having Bronsted acid activity; wherein the zeolite has acidic pore activity and wherein the zeolite surface is rendered substantially inactive for acidic reactions. The zeolite surface can be neutralized by a bulky pyridine compound having an effective cross-section larger than the zeolite pore. The preferred deactivating agent is 2,4,6-collidine, which may be applied to the zeolite as a pretreatment or added with olefin feed in a continuous process.