公开(公告)号：US20190201865A1

公开(公告)日：2019-07-04

申请号：US16144627

申请日：2018-09-27

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Andre-Armand Finette ,  Christoph Wolf ,  Michael Deuerling ,  Juergen Peter Mohrbutter ,  Danir Khayrullin

IPC: B01J19/24 ,  C08F210/02 ,  C08F210/16 ,  F16L3/23 ,  F16L43/00

CPC classification number: C08F2/01 ,  B01J3/042 ,  B01J19/002 ,  B01J19/242 ,  B01J2219/00159 ,  B01J2219/00162 ,  B01J2219/00263 ,  B01J2219/0027 ,  C08F2/34 ,  C08F10/02 ,  C08F2/00

Abstract: The present disclosure relates to a manufacturing plant for high-pressure polymerization having a layered tubular reactor and a method for an emergency shutdown in said manufacturing plant. The present disclosure also relates to a process for manufacturing LDPE using said layered tubular reactor.

公开(公告)号：US09631037B2

公开(公告)日：2017-04-25

申请号：US15240084

申请日：2016-08-18

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Jurgen Peter Mohrbutter ,  Giulia Mei ,  Andre-Armand Finette ,  Sven Georg Wolfram ,  Michael Deuerling ,  Danir Khayrullin ,  Georg Groos ,  Christoph Wolf

IPC: C08F110/02 ,  C08F2/01 ,  C08F2/34 ,  C08J5/18 ,  B01J19/24 ,  C08F2/38

CPC classification number: C08F110/02 ,  B01J19/2415 ,  C08F2/01 ,  C08F2/34 ,  C08J5/18 ,  C08J2323/06 ,  C08F2/00 ,  C08F2500/12 ,  C08F2500/26

Abstract: The present technology relates to a process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out in a continuously operated tubular reactor at temperatures from 100° C. to 350° C. and pressures from 180 MPa to 340 MPa, with a specific reactor surface area Asp of 2 m2/(t/h) to 5.5 m2/(t/h), and the tubular reactor has a specific ratio RDsp of 0.0050 MPa−1 to 0.0069 MPa−1 and an inner surface which has a surface roughness Ra of 2 μm or less.

公开(公告)号：US09441057B1

公开(公告)日：2016-09-13

申请号：US15044855

申请日：2016-02-16

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Jurgen Peter Mohrbutter ,  Giulia Mei ,  Andre-Armand Finette ,  Sven Georg Wolfram ,  Michael Deuerling ,  Danir Khayrullin ,  Georg Groos ,  Christoph Wolf

IPC: C08F2/01 ,  C08F2/34 ,  C08F2/38 ,  C08F110/02 ,  C08J5/18

CPC classification number: C08F110/02 ,  B01J19/2415 ,  C08F2/01 ,  C08F2/34 ,  C08J5/18 ,  C08J2323/06 ,  C08F2/00 ,  C08F2500/12 ,  C08F2500/26

Abstract: The present technology relates to a process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out in a continuously operated tubular reactor at temperatures from 100° C. to 350° C. and pressures from 180 MPa to 340 MPa, with a specific reactor surface area Asp of 2 m2/(t/h) to 5.5 m2/(t/h), and the tubular reactor has a specific ratio RDsp of 0.0050 MPa−1 to 0.0069 MPa−1 and an inner surface which has a surface roughness Ra of 2 μm or less.

Abstract translation: 本技术涉及在自由基聚合引发剂存在下聚合或共聚烯属不饱和单体的方法，其中聚合在连续操作的管式反应器中在100℃至350℃的温度下进行，压力 从180MPa到340MPa，比表面积Asp为2m 2 /（t / h）至5.5m 2 /（t / h），并且管式反应器的比值RDsp为0.0050MPa-1至0.0069MPa -1，表面粗糙度Ra为2μm以下的内表面。

公开(公告)号：US20220410102A1

公开(公告)日：2022-12-29

申请号：US17780201

申请日：2020-12-01

Applicant: Basell Polyolefine GmbH

Inventor： Christoph Wolf ,  Juergen Mohrbutter ,  Andre-Armand Finette ,  Michael Deuerling ,  Danir Khayrullin ,  Dieter Littmann

IPC: B01J3/02 ,  B01J4/00 ,  B01J19/00 ,  C08F2/01 ,  C08L23/06

Abstract: A high-pressure polymerization system having a) a polymerization reactor and b) a reactor blow down system having b1) a reactor blow down vessel, having a circular design over a major portion P having a L/D-ratio in the range from 1.75 to 10.0 and containing an aqueous quenching medium, b2) a release line connecting the polymerization reactor with the reactor blow down vessel and having an outlet located above a maximum level for the aqueous quenching medium, b3) a first emergency valve in the release line to open and close fluid communication between the polymerization reactor and the reactor blow down system, and wherein the release line outlet has a joining piece having an angle (a) between the central axis and a tangent at the reactor blow down vessel in the range from 5° to 70° and the reactor blow down vessel has a vent stack containing a constricted section.

公开(公告)号：US20200369792A1

公开(公告)日：2020-11-26

申请号：US16636804

申请日：2018-08-16

Applicant: Basell Polyolefine GmbH

Inventor： Christoph Wolf ,  Dieter Littmann ,  Michael Deuerling ,  Andre-Armand Finette ,  Danir Khayrullin ,  Juergen Mohrbutter

IPC: C08F2/01 ,  C08F10/02 ,  B01J19/24 ,  B01J3/04 ,  B01J3/00 ,  B01J19/00

Abstract: A process for the preparation of ethylene homopolymers or copolymers in a facility having a high-pressure tubular reactor and a preheater, wherein a reaction fluid introduced into the reactor at a reactor inlet is heated in the preheater and the average velocity of the reaction fluid in the preheater is lower than the average velocity of the reaction fluid in the tubular reactor and the ratio of the average velocity in the tubular reactor to the average velocity of the reaction fluid in the preheater is in the range from 1.5 to 5.

公开(公告)号：US20170335028A1

公开(公告)日：2017-11-23

申请号：US15674176

申请日：2017-08-10

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Jürgen Peter Mohrbutter ,  Giulia Mei ,  Andre-Armand Finette ,  Sven Georg Wolfram ,  Michael Deuerling ,  Danir Khayrullin ,  Georg Groos ,  Christoph Wolf

IPC: C08F110/02 ,  B01J19/24 ,  C08J5/18

CPC classification number: C08F110/02 ,  B01J19/2415 ,  C08F2/01 ,  C08F2/34 ,  C08J5/18 ,  C08J2323/06 ,  C08F2/00 ,  C08F2500/12 ,  C08F2500/26

Abstract: The present technology relates to a process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out in a continuously operated tubular reactor at temperatures from 100° C. to 350° C. and pressures from 180 MPa to 340 MPa, with a specific reactor surface area Asp of 2 m2/(t/h) to 5.5 m2/(t/h), and the tubular reactor has a specific ratio RDsp of 0.0050 MPa−1 to 0.0069 MPa−1 and an inner surface which has a surface roughness Ra of 2 μm or less.

公开(公告)号：US09758603B2

公开(公告)日：2017-09-12

申请号：US15461064

申请日：2017-03-16

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Jürgen Peter Mohrbutter ,  Giulia Mei ,  Andre-Armand Finette ,  Sven Georg Wolfram ,  Michael Deuerling ,  Danir Khayrullin ,  Georg Groos ,  Christoph Wolf

IPC: C08F110/02 ,  C08F2/01 ,  C08J5/18 ,  B01J19/24 ,  C08F2/34 ,  C08F2/38

CPC classification number: C08F110/02 ,  B01J19/2415 ,  C08F2/01 ,  C08F2/34 ,  C08J5/18 ,  C08J2323/06 ,  C08F2/00 ,  C08F2500/12 ,  C08F2500/26

Abstract: The present technology relates to a process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out in a continuously operated tubular reactor at temperatures from 100° C. to 350° C. and pressures from 180 MPa to 340 MPa, with a specific reactor surface area Asp of 2 m2/(t/h) to 5.5 m2/(t/h), and the tubular reactor has a specific ratio RDsp of 0.0050 MPa−1 to 0.0069 MPa−1 and an inner surface which has a surface roughness Ra of 2 μm or less.

公开(公告)号：US20170022303A1

公开(公告)日：2017-01-26

申请号：US15240084

申请日：2016-08-18

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Jurgen Peter Mohrbutter ,  Giulia Mei ,  Andre-Armand Finette ,  Sven Georg Wolfram ,  Michael Deuerling ,  Danir Khayrullin ,  Georg Groos ,  Christoph Wolf

IPC: C08F110/02 ,  B01J19/24

CPC classification number: C08F110/02 ,  B01J19/2415 ,  C08F2/01 ,  C08F2/34 ,  C08J5/18 ,  C08J2323/06 ,  C08F2/00 ,  C08F2500/12 ,  C08F2500/26

Abstract: The present technology relates to a process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out in a continuously operated tubular reactor at temperatures from 100° C. to 350° C. and pressures from 180 MPa to 340 MPa, with a specific reactor surface area Asp of 2 m2/(t/h) to 5.5 m2/(t/h), and the tubular reactor has a specific ratio RDsp of 0.0050 MPa−1 to 0.0069 MPa−1 and an inner surface which has a surface roughness Ra of 2 μm or less.

Abstract translation: 本技术涉及在自由基聚合引发剂存在下聚合或共聚烯键式不饱和单体的方法，其中聚合在连续操作的管式反应器中在100℃至350℃的温度下进行，压力 从180MPa到340MPa，比表面积Asp为2m 2 /（t / h）至5.5m 2 /（t / h），并且管式反应器的比值RDsp为0.0050MPa-1至0.0069MPa -1，表面粗糙度Ra为2μm以下的内表面。

公开(公告)号：US20210148633A1

公开(公告)日：2021-05-20

申请号：US16623579

申请日：2018-06-21

Applicant: Basell Polyolefine GmbH

Inventor： Giulia Mei ,  Juergen Mohrbutter ,  Dieter Littmann ,  Christoph Wolf ,  Andre-Armand Finette ,  Michael Deuerling ,  Giuseppe Penzo

IPC: F26B3/06 ,  C08F110/02 ,  B01J2/20 ,  F26B5/08 ,  F26B17/22 ,  F26B21/00

Abstract: Method for the preparation of dried polymer pellets in a facility having a dryer with a first chamber and a mechanical agitator, and the facility further having a degassing silo with a second chamber, the method includes the steps of guiding a drying gas flow made from or containing a first gas mixture for drying wet polymer pellets into the first chamber, transferring the dried polymer pellets into the second chamber, guiding a second gas mixture for degassing the dried polymer pellets into the second chamber thereby transforming the second gas mixture into a third gas mixture and guiding a portion of the third gas mixture into the first chamber; and process for manufacturing LDPE pellets.

公开(公告)号：US10343135B1

公开(公告)日：2019-07-09

申请号：US16144627

申请日：2018-09-27

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Andre-Armand Finette ,  Christoph Wolf ,  Michael Deuerling ,  Juergen Peter Mohrbutter ,  Danir Khayrullin

IPC: C08F210/02 ,  C08F210/16 ,  F16L3/23 ,  B01J19/24 ,  F16L43/00

Abstract: The present disclosure relates to a manufacturing plant for high-pressure polymerization having a layered tubular reactor and a method for an emergency shutdown in said manufacturing plant. The present disclosure also relates to a process for manufacturing LDPE using said layered tubular reactor.