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11.发明申请公开(公告)号：US20220106418A1
公开(公告)日：2022-04-07
申请号：US17312288
申请日：2019-12-16
Applicant: Basell Polyolefine GmbH
Inventor： Dieter Littmann , Andre-Armand Finette , Christoph Wolf , Michael Deuerling , Juergen Mohrbutter , Danir Khayrullin , Giulia Mei , Erich Neumann
Abstract: A process for polymerizing ethylene in a high-pressure polymerization system having a continuously operated polymerization reactor and a reactor blow down system having an emergency valve, a reactor blow down vessel containing an aqueous medium and a reactor blow down dump vessel, wherein the process includes the steps of monitoring the polymerization system for a disturbance, opening the emergency valve when a disturbance occurs to allow the content of the polymerization system to expand into the reactor blow down vessel, contacting the content of the polymerization system in the reactor blow down vessel with the aqueous medium to obtain an aqueous polymer slurry, separating the polymer slurry and gaseous components, and transferring the polymer slurry to the reactor blow down dump vessel.
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公开(公告)号：US11155649B2
公开(公告)日：2021-10-26
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
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.
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公开(公告)号：US09931608B2
公开(公告)日：2018-04-03
申请号：US15523909
申请日：2015-11-12
Applicant: Basell Polyolefine GmbH
Inventor： Dieter Littmann , Georg Groos , Andre-Armand Finette , Michael Deuerling , Sven Wolfram , Juergen Mohrbutter , Danir Khayrullin , Claudio Fibla , Christoph Wolf
CPC classification number: B01J4/002 , B01J2219/185 , B01J2219/1943 , B01J2219/1946 , C08F2/004 , C08F2/01 , C08F6/001 , C08J11/02 , Y02P20/582
Abstract: A process for separating polymeric and gaseous components of a polymer-monomer mixture at a pressure of from 0.12 MPa to 0.6 MPa and a temperature of from 120° C. to 300° C. in a separation vessel is provided. The separation vessel has a vertically arranged cylindrical shape with a ratio of length to diameter L/D of from 0.6 to 10 and an inlet pipe capable of introducing the polymer-monomer mixture into the separation vessel which the inlet pipe extends vertically from the top of the separation vessel into the separation vessel. Further a process for preparing ethylene homopolymers or copolymers from ethylenically unsaturated monomers in the presence of free-radical polymerization initiators at temperatures from 100° C. to 350° C. and pressures in the range of from 110 MPa to 500 MPa comprising such a process for separating a polymer-monomer mixture is provided.
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14.发明授权公开(公告)号：US09908954B2
公开(公告)日：2018-03-06
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 , 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.
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15.发明申请公开(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.
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Patent Agency Ranking
公开(公告)号：US20180171044A1
公开(公告)日：2018-06-21
申请号：US15579882
申请日：2016-06-14
Applicant: Basell Polyolefine GmbH
Inventor： Christoph Wolf , Andre-Armand Finette , Andrei Gonioukh , Dieter Littmann , Thomas Herrmann , Georg Groos
IPC: C08F110/02 , B01J19/24
CPC classification number: C08F110/02 , B01J19/2415 , B01J19/2465 , B01J2219/00081 , B01J2219/00092 , B01J2219/24 , C08F2/04 , Y02P20/582
Abstract: The present disclosure relates to a plant for performing polymerization, such as the polymerization of ethylene, having a recycle connection with two or more cooling channels arranged in parallel, a process for polymerization and downstream processes, and a plant for polymerization, comprising the following plant components in fluid communication: a) A reactor with an inlet side and an outlet side; b) A recycle connection positioned in fluid communication between the outlet side of the reactor and the inlet side of the reactor; wherein the recycle connection comprises two or more cooling channels arranged in parallel.
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17.发明授权公开(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
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.
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18.发明授权High-pressure polymerization process of ethylenically unsaturated monomers in a tubular reactor 有权烯属不饱和单体在管式反应器中的高压聚合方法公开(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。
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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
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.
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20.发明授权公开(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.
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