PROCESS FOR CONVERTING OLEFINS TO HIGH VISCOSITY INDEX LUBRICANTS USING LARGE CRYSTAL ZEOLITES

摘要

PROCESS FOR CONVERTING OLEFINS TO HIGH VISCOSITY INDEX LUBRICANTS USING LARGE CRYSTAL ZEOLITES An improved process for the production of high viscosity lubricating oils obtained by reacting olefins over a ZSM-5 type catalyst at elevated temperatures and pressures in order to obtain a liquid product and thereafter recovering a lubricating oil fraction from the liquid product is disclosed. The improvement resides in the use of a large crystal ZSM-5 type catalyst which has been found to enhance the viscosity index of the lubricating oils produced from olefins.