公开(公告)号：US11976140B2

公开(公告)日：2024-05-07

申请号：US17279708

申请日：2019-10-30

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： David F Sanders ,  Matthew W. Holtcamp ,  Kevin A. Stevens ,  Joshua P Olson

IPC: C08F210/16 ,  B01J8/00 ,  B01J8/22 ,  C08F2/01 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/02

CPC classification number: C08F10/02 ,  B01J8/004 ,  B01J8/22 ,  C08F2/01 ,  C08F4/65925 ,  C08F4/65927 ,  C08F210/16 ,  B01J2208/00548 ,  B01J2208/00787 ,  B01J2208/00849

Abstract: A process for polymerizing polyethylene is disclosed. The process comprises contacting ethylene and at least one comonomer with a catalyst system to produce a polyolefin. The first catalyst and at least a portion of the second catalyst are co-supported to form a commonly-supported catalyst system. The catalyst system is introduced to a line as a dry-feed. The line is coupled with a polymerization reactor. A carrier fluid is added to the line to form a slurry. The slurry is introduced to the polymerization reactor.