发明名称 |
Production of shear-stable high viscosity PAO |
摘要 |
The invention is directed to a process for the preparation of high viscosity lubricant base stocks by contacting alphaolefin feedstocks with single-site metallocene catalysts in a mixed flow or continuous stirred tank reactors. |
申请公布号 |
US9365663(B2) |
申请公布日期 |
2016.06.14 |
申请号 |
US200912388794 |
申请日期 |
2009.02.19 |
申请人 |
ExxonMobil Chemical Patents Inc. |
发明人 |
Hagemeister Mark Paul;Jiang Peijun;Wu Margaret M.;Yang Norman |
分类号 |
C08F2/00;C10M107/02;C08F10/14;C08F10/08;C08F210/08 |
主分类号 |
C08F2/00 |
代理机构 |
|
代理人 |
Parsons Luke A.;Krawczyk Nancy T. |
主权项 |
1. A process for preparing a high viscosity PAO base stock, comprising contacting a catalyst system comprising a single-site metallocene and a non-coordinating anion (NCA) with a feedstock consisting of linear alpha-olefins and optionally water at a concentration of less than 10 ppm by weight in a continuous stirred tank reactor (CSTR) operation to obtain a PAO crude product, wherein said feedstock is selected from the group consisting of:
(i) a mixed feedstock consisting essentially of C10 and C12 alpha-olefins comprising from about 1 wt % to 90 wt % of 1-decene; (ii) a mixed feedstock consisting essentially of C12 to C14 alpha-olefins; (iii) a mixed feedstock consisting essentially of C6, C10, and C14 alpha-olefins comprising from about 1 wt % to 90 wt % of 1-decene; and (iv) a mixed feedstock consisting essentially of C6, C10, C12, and C14 alpha-olefins comprising from about 1 wt % to 90 wt % of 1-decene, and obtaining a high viscosity PAO base stock from the PAO crude product; wherein the high viscosity PAO base stock is characterized by a KV100 of greater than 10 to about 10,000 cSt, and a MWD of 1.76 or less, where KV100 is kinematic viscosity measured at 100° C. in cSt. |
地址 |
Baytown TX US |