PROCESS FOR PREPARING LUBE BASESTOCKS HAVING SUPERIOR LOW TEMPERATURE PROPERTIES AT HIGH VI
摘要
A process for preparing basestocks having superior low temperature properties at high viscosity index (VI). More particularly, a waxy feedstock is contacted with a first dewaxing catalyst having a refined constraint index (CI*) 2.0 or less followed by contacting with a second dewaxing catalyst having a refined constraint index greater than 2.0.
申请公布号
EP2238221(B1)
申请公布日期
2016.10.05
申请号
EP20080868047
申请日期
2008.12.23
申请人
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
发明人
DAAGE, MICHEL, A.;LARKIN, DAVID, W.;MURPHY, WILLIAM, J.
