公开(公告)号：US10308738B2

公开(公告)日：2019-06-04

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 ,  C08F2/04 ,  B01J19/24

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.

公开(公告)号：US10005862B2

公开(公告)日：2018-06-26

申请号：US14654252

申请日：2013-12-16

Applicant: Basell Polyolefine GmbH

Inventor： Andre-Armand Finette ,  Christoph Wolf ,  Danir Khayrullin ,  Giulia Mei ,  Juergen Mohrbutter ,  Dieter Littmann

IPC: C08F210/02 ,  C08F210/04 ,  C08F210/08 ,  C08F2/00 ,  C07C67/54

CPC classification number: C08F210/02 ,  C08F2/00 ,  C08F218/08

Abstract: Process for copolymerizing ethylene and esters of vinyl alcohol in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus comprising a polymerization reactor and one or more compressors, which compress the monomer mixture fed to the polymerization reactor to the polymerization pressure, wherein the monomer mixture is compressed by a sequence of compression stages in which the compressed gas mixture is cooled after each compression stage and the fraction of the monomer mixture, which is liquid after this cooling, is separated off and returned to the polymerization apparatus in liquid form, and wherein at least a part of the liquid fractions obtained after compressing the monomer mixture in the respective compression stage to a pressure of from 0.2 MPa to 10 MPa is purified before being returned to the polymerization process.

公开(公告)号：US20170183429A1

公开(公告)日：2017-06-29

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 ,  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：US09637568B2

公开(公告)日：2017-05-02

申请号：US15101372

申请日：2014-12-03

Applicant: Basell Polyolefine GmbH

Inventor： Danir Khayrullin ,  Michael Deuerling ,  Christoph Wolf ,  Erich Neumann ,  Claudio Fibla

IPC: C08F2/00 ,  C08F4/00 ,  C08F210/00 ,  B01J10/00 ,  B01J19/18 ,  C08F6/10 ,  C08F6/00 ,  C08F6/12 ,  G01F23/288 ,  C08F10/02 ,  B01J4/00

CPC classification number: C08F6/10 ,  B01J4/002 ,  C08F6/001 ,  C08F6/12 ,  C08F10/02 ,  G01F23/2885 ,  C08L23/04 ,  C08F2/00

Abstract: The present disclosure generally relates to a process for separating polymeric and gaseous components of a reaction mixture obtained by high-pressure polymerization of ethylenically unsaturated monomers in the presence of free-radical polymerization initiators into a gaseous fraction and a liquid fraction in a separation vessel, wherein the filling level of the liquid fraction in the separation vessel is measured by a radiometric level measurement system comprising at least two radioactive sources and at least three radiation detectors, and the filling level is controlled by a product discharge valve which operates based on data coming from the level measurement system.

公开(公告)号：US20160289356A1

公开(公告)日：2016-10-06

申请号：US14654252

申请日：2013-12-16

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Andre-Armand Finette ,  Christoph Wolf ,  Danir Khayrullin ,  Giulia Mei ,  Juergen Mohrbutter ,  Dieter Littmann

IPC: C08F210/02

CPC classification number: C08F210/02 ,  C08F2/00 ,  C08F218/08

Abstract: Process for copolymerizing ethylene and esters of vinyl alcohol in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus comprising a polymerization reactor and one or more compressors, which compress the monomer mixture fed to the polymerization reactor to the polymerization pressure, wherein the monomer mixture is compressed by a sequence of compression stages in which the compressed gas mixture is cooled after each compression stage and the fraction of the monomer mixture, which is liquid after this cooling, is separated off and returned to the polymerization apparatus in liquid form, and wherein at least a part of the liquid fractions obtained after compressing the monomer mixture in the respective compression stage to a pressure of from 0.2 MPa to 10 MPa is purified before being returned to the polymerization process.

Abstract translation: 在自由基聚合引发剂的存在下，在连续操作的聚合装置中在110MPa至500MPa的范围内和在100℃至350℃的温度范围内共聚乙烯和乙烯醇的酯的方法 包括聚合反应器和一个或多个压缩机，其将进料到聚合反应器的单体混合物压缩至聚合压力，其中单体混合物通过一系列压缩阶段压缩，其中压缩气体混合物在每个压缩阶段之后被冷却， 在该冷却后液体的单体混合物的分数被分离出并返回到液体形式的聚合装置中，并且其中在各个压缩阶段将单体混合物压缩后获得的至少一部分液体馏分为 在返回到聚合过程之前，将0.2MPa至10MPa的压力进行纯化。

公开(公告)号：US09272979B2

公开(公告)日：2016-03-01

申请号：US14654100

申请日：2013-12-16

Applicant: Basell Polyolefine GmbH

Inventor： Erich Neumann ,  Christoph Wolf ,  Dieter Littmann

IPC: C08F2/00 ,  C08F4/00 ,  C08F118/02 ,  C07C67/48 ,  C07C67/52 ,  C08F210/02

CPC classification number: C07C67/52 ,  C08F210/02 ,  Y02P20/582 ,  C08F2/00 ,  C08F218/08 ,  C07C69/15

Abstract: A process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol being at a pressure in the range of from 0.5 MPa to 10 MPa and a temperature in the range of from 5° C. to 50° C.; and a process for copolymerizing ethylene and esters of vinyl alcohol in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus comprising such a process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol.

Abstract translation: 一种从气流中分离乙烯醇的酯的方法，包括70至99.5重量％的乙烯和0.5至30重量％的乙烯醇的酯在0.5MPa至10MPa的压力范围内，以及 温度范围为5℃至50℃; 以及在自由基聚合引发剂的存在下，在110MPa至500MPa的压力和100℃至350℃的温度范围内，乙烯醇的乙烯和酯的共聚合方法， 连续操作的聚合装置包括这样一种从含有70-99.5％（重量）乙烯和0.5-30％（重量）乙烯醇酯的气流中分离乙烯醇酯的方法。

公开(公告)号：US20150315119A1

公开(公告)日：2015-11-05

申请号：US14654100

申请日：2013-12-16

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Erich Neumann ,  Christoph Wolf ,  Dieter Littmann

IPC: C07C67/52 ,  C08F210/02

CPC classification number: C07C67/52 ,  C08F210/02 ,  Y02P20/582 ,  C08F2/00 ,  C08F218/08 ,  C07C69/15

Abstract: Process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol being at a pressure in the range of from 0.5 MPa to 10 MPa and a temperature in the range of from 5° C. to 50° C. comprising the steps of a) cooling the gas stream in a first heat exchanger by means of a cooling medium to a temperature of from −5° C. to 40° C.; b) withdrawing the not condensed part of the gas stream from the first heat exchanger and transferring it to a second heat exchanger; c) cooling the gas stream in the second heat exchanger to a temperature of from −20° C. to 5° C.; d) withdrawing the not condensed part of the gas stream from the second heat exchanger, reducing the pressure of the gas stream to from 0.5 MPa to 3 MPa and transferring it to a separation vessel; e) withdrawing the not condensed part of the gas stream from the separation vessel and transferring it as cooling medium to the second heat exchanger; and f) withdrawing the cooling medium as ethylene gas stream with a reduced content of esters of vinyl alcohol from the second heat exchanger, and process for copolymerizing ethylene and esters of vinyl alcohol in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus comprising such a process for separating esters of vinyl alcohol from a gas stream comprising from 70 to 99.5% by weight of ethylene and from 0.5 to 30% by weight of esters of vinyl alcohol.

Abstract translation: 从乙烯醇的70〜99.5重量％的乙烯和0.5〜30重量％的乙烯醇的酯在0.5MPa〜10MPa的压力范围内分离乙烯醇的酯的方法， 温度在5℃至50℃的范围内，包括以下步骤：a）通过冷却介质将第一热交换器中的气流冷却至-5℃至40℃的温度 。 b）从第一热交换器中取出气流的未冷凝部分并将其转移到第二热交换器; c）将第二热交换器中的气流冷却至-20℃至5℃的温度; d）从第二热交换器中取出气流的未冷凝部分，将气流的压力降至0.5MPa至3MPa并将其转移至分离容器; e）从分离容器中取出气流的未冷凝部分并将其作为冷却介质转移到第二热交换器; 以及f）将来自第二热交换器的乙烯醇酯含量降低的乙烯气流作为乙烯气流取出，以及在自由基聚合引发剂的存在下在乙烯醇的存在下共聚乙烯醇和乙烯醇酯的方法， 在连续操作的聚合装置中，从110MPa到500MPa的温度和在100℃至350℃的温度范围内，包括这样一种将乙烯醇的酯从气流中分离的方法，该气流包含70-99.5％的 乙烯重量和0.5至30％重量的乙烯醇酯。