公开(公告)号：US11773192B2

公开(公告)日：2023-10-03

申请号：US17856095

申请日：2022-07-01

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sanjeev Kumar Gupta ,  Mohammed Al-Ofi ,  Ravi Ranjan Kumar ,  Abdulrahman Albeladi

IPC: C08F2/38 ,  C08F2/01 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  B01J8/18 ,  B01J8/24 ,  C08F4/654

CPC classification number: C08F2/38 ,  B01J8/1809 ,  B01J8/24 ,  C08F2/01 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  B01J2219/00033 ,  B01J2219/00063 ,  C08F4/6545 ,  C08F4/6548 ,  C08F2400/02

Abstract: The present invention relates to a process for the continuous preparation of a polyolefin from one or more α-olefin monomers in a reactor system, the process for the continuous preparation of polyolefin comprising the steps of: +feeding a polymerization catalyst to a fluidized bed through an inlet for a polymerization catalyst; +feeding the one or more monomers to the reactor, +polymerizing the one or more monomers in the fluidized bed to prepare the polyolefin; +withdrawing polyolefin formed from the reactor through an outlet for polyolefin; +withdrawing fluids from the reactor through an outlet for fluids and transporting the fluids through first connection means, an heat exchanger to cool the fluids to produce a cooled recycle stream, and through second connection means back into the reactor via an inlet for the recycle stream; wherein a thermal run away reducing agent (TRRA) is added to the reactor in a discontinuous way.

公开(公告)号：US11384166B2

公开(公告)日：2022-07-12

申请号：US16331234

申请日：2017-09-01

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sanjeev Kumar Gupta ,  Mohammed Al-Ofi ,  Ravi Ranjan Kumar ,  Abdulrahman Albeladi

IPC: C08F2/38 ,  C08F2/01 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  B01J8/18 ,  B01J8/24 ,  C08F4/654

Abstract: The present invention relates to a process for the continuous preparation of a polyolefin from one or more α-olefin monomers in a reactor system, the process for the continuous preparation of polyolefin comprising the steps of: feeding a polymerization catalyst to a fluidized bed through an inlet for a polymerization catalyst; feeding the one or more monomers to the reactor, polymerizing the one or more monomers in the fluidized bed to prepare the polyolefin; withdrawing polyolefin formed from the reactor through an outlet for polyolefin; withdrawing fluids from the reactor through an outlet for fluids and transporting the fluids through first connection means, an heat exchanger to cool the fluids to produce a cooled recycle stream, and through second connection means back into the reactor via an inlet for the recycle stream; wherein a thermal run away reducing agent (TRRA) is added to the reactor in a discontinuous way.

公开(公告)号：US20220332855A1

公开(公告)日：2022-10-20

申请号：US17856095

申请日：2022-07-01

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sanjeev Kumar Gupta ,  Mohammed Al-Ofi ,  Ravi Ranjan Kumar ,  Abdulrahman Albeladi

IPC: C08F2/38 ,  C08F2/01 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  B01J8/18 ,  B01J8/24

Abstract: The present invention relates to a process for the continuous preparation of a polyolefin from one or more α-olefin monomers in a reactor system, the process for the continuous preparation of polyolefin comprising the steps of: feeding a polymerization catalyst to a fluidized bed through an inlet for a polymerization catalyst; feeding the one or more monomers to the reactor, polymerizing the one or more monomers in the fluidized bed to prepare the polyolefin; withdrawing polyolefin formed from the reactor through an outlet for polyolefin; withdrawing fluids from the reactor through an outlet for fluids and transporting the fluids through first connection means, an heat exchanger to cool the fluids to produce a cooled recycle stream, and through second connection means back into the reactor via an inlet for the recycle stream; wherein a thermal run away reducing agent (TRRA) is added to the reactor in a discontinuous way.

公开(公告)号：US20190185591A1

公开(公告)日：2019-06-20

申请号：US16331234

申请日：2017-09-01

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sanjeev Kumar Gupta ,  Mohammed Al-Ofi ,  Ravi Ranjan Kumar ,  Abdulrahman Albeladi

IPC: C08F2/38 ,  C08F2/01 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  B01J8/24 ,  B01J8/18

CPC classification number: C08F2/38 ,  B01J8/1809 ,  B01J8/24 ,  B01J2219/00033 ,  B01J2219/00063 ,  C08F2/01 ,  C08F4/6545 ,  C08F4/6548 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  C08F2400/02

Abstract: The present invention relates to a process for the continuous preparation of a polyolefin from one or more α-olefin monomers in a reactor system, the process for the continuous preparation of polyolefin comprising the steps of: feeding a polymerization catalyst to a fluidized bed through an inlet for a polymerization catalyst; feeding the one or more monomers to the reactor, polymerizing the one or more monomers in the fluidized bed to prepare the polyolefin; withdrawing polyolefin formed from the reactor through an outlet for polyolefin; withdrawing fluids from the reactor through an outlet for fluids and transporting the fluids through first connection means, an heat exchanger to cool the fluids to produce a cooled recycle stream, and through second connection means back into the reactor via an inlet for the recycle stream; wherein a thermal run away reducing agent (TRRA) is added to the reactor in a discontinuous way.