公开(公告)号：US20220339592A1

公开(公告)日：2022-10-27

申请号：US17763440

申请日：2020-09-23

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Mpho Prudence SETLHAKU ,  Martin Alexander ZUIDEVELD ,  Bobby Johannes Henricus Hubertus SMEETS

IPC: B01J8/00 ,  C08F10/06 ,  B01J8/08 ,  B01J8/14 ,  B01J8/18

Abstract: The present invention relates to a process for the polymerization of olefin monomers in the presence of a catalyst system, using a tubular pre-polymerization reactor, wherein the tubular pre-polymerization reactor has a length L and the flow of a catalyst system is introduced in the tubular pre-polymerization reactor in the middle (30-70% of L) or the end (70-95% of L) of the tubular pre-polymerization reactor.