公开(公告)号：WO2017085097A1

公开(公告)日：2017-05-26

申请号：PCT/EP2016/077813

申请日：2016-11-16

Applicant: BASELL POLYOLEFINE GMBH

Inventor： NEUMANN, Erich ,  WOLFRAM, Sven ,  WOLF, Christoph ,  MOHRBUTTER, Juergen ,  LITTMANN, Dieter

IPC: C08F2/01 ,  B01J19/00

CPC classification number: C08F2/01 ,  B01J19/00

Abstract: A process for polymerizing ethylene to obtain an ethylene-based polymer in a plant, wherein the plant includes a reactor in fluid communication with a recycle connection, wherein the process comprises a polymerization phase, a partial shutdown phase, and the steps of reducing the pressure in the reactor for entering from the polymerization phase into the partial shutdown phase; and increasing the pressure in the reactor for exiting from the partial shutdown phase and re-entering the polymerization phase.

Abstract translation: 一种在设备中聚合乙烯以获得基于乙烯的聚合物的方法，其中所述设备包括与再循环连接流体连通的反应器，其中所述方法包括聚合阶段，部分关闭阶段 以及降低反应器中用于从聚合阶段进入部分停堆阶段的压力的步骤; 并增加反应器中的压力以退出部分关闭阶段并重新进入聚合阶段。

公开(公告)号：WO2015082565A1

公开(公告)日：2015-06-11

申请号：PCT/EP2014/076460

申请日：2014-12-03

Applicant: BASELL POLYOLEFINE GMBH

Inventor： GROOS, Georg ,  NEUMANN, Erich ,  DEUERLING, Michael ,  LITTMANN, Dieter

IPC: C08F6/10 ,  C08F6/12 ,  C08J11/02 ,  C08F10/00 ,  C08F6/00

CPC classification number: C08F6/12 ,  C08F2/01 ,  C08F2/02 ,  C08F2/34 ,  C08F6/001 ,  C08F6/10 ,  C08J11/02 ,  Y02P20/582 ,  C08L23/04 ,  C08F10/02 ,  C08F2/00 ,  C08F110/02 ,  C08F210/16 ,  C08F2500/08

Abstract: 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, the process comprising the steps of entering the reaction mixture into a separation vessel; separating the reaction mixture into in a gaseous fraction and a liquid fraction; and withdrawing the gaseous fraction from the top of the separation vessel and withdrawing the liquid fraction from the bottom of the separation vessel, wherein the separation is carried out at a pressure of from 15 MPa to 50 MPa and a temperature of from 120°C to 300°C; the separation vessel has a vertically arranged cylindrical shape with a ratio of length to diameter L/D of from 4 to 10 and is equipped with an inlet pipe for introducing the reaction mixture into the separation vessel; the inlet pipe extends vertically from the top into the separation vessel; and the ratio of the inner diameter of the inlet pipe at its lower end and the inner diameter of the separating vessel in its cylindrical part is in the range of from 0.2 to 0.4 and 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 in a polymerization reactor comprising a such process for separating polymeric and gaseous components.

Abstract translation: 在自由基聚合引发剂存在下，通过烯属不饱和单体的高压聚合获得的反应混合物的聚合物和气态组分的分离方法，该方法包括以下步骤：将反应混合物进入分离容器; 将反应混合物分离成气态馏分和液体馏分; 并从分离容器的顶部取出气体馏分并从分离容器的底部排出液体部分，其中分离在15MPa至50MPa的压力和120℃至120℃的温度下进行 300℃; 分离容器具有垂直排列的圆柱形，长度与直径L / D之比为4至10，并具有用于将反应混合物引入分离容器的入口管; 入口管从顶部垂直延伸到分离容器中; 并且其下端的入口管的内径与其圆柱形部分中的分离容器的内径的比率在0.2至0.4的范围内以及在烯属不饱和单体中制备乙烯均聚物或共聚物的方法 在聚合反应器中存在自由基聚合引发剂，其温度为100℃至350℃，压力范围为110MPa至500MPa，包括用于分离聚合物和气态组分的方法。

公开(公告)号：WO2014095707A1

公开(公告)日：2014-06-26

申请号：PCT/EP2013/076680

申请日：2013-12-16

Applicant: BASELL POLYOLEFINE GMBH

Inventor： NEUMANN, Erich ,  WOLF, Christoph ,  LITTMANN, Dieter

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

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％的乙烯醇的酯的压力为0.5MPa〜10MPa的范围内分离乙烯醇的酯的方法， 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至500MPa的温度和在100℃至350℃的温度范围内，包括将乙烯醇的酯从气流中分离的方法，所述方法包括70至99.5重量％ 乙烯和0.5至30重量％的乙烯醇的酯。

公开(公告)号：WO2020127079A1

公开(公告)日：2020-06-25

申请号：PCT/EP2019/085394

申请日：2019-12-16

Applicant: BASELL POLYOLEFINE GMBH

Inventor： LITTMANN, Dieter ,  FINETTE, Andre-Armand ,  WOLF, Christoph ,  DEUERLING, Michael ,  MOHRBUTTER, Juergen ,  KHAYRULLIN, Danir ,  MEI, Giulia ,  NEUMANN, Erich

IPC: C08F2/01 ,  C08F2/02 ,  C08F10/02 ,  B01J19/24 ,  B01J8/00

Abstract: A process for polymerizing ethylene in a high-pressure polymerization system comprising a continuously operated polymerization reactor and a reactor blow down system comprising an emergency valve, a reactor blow down vessel containing an aqueous medium and a reactor blow down dump vessel, wherein the process comprises monitoring the polymerization system with respect to an occurrence of a disturbance, opening the emergency valve in case of a disturbance to allow the content of the polymerization system to expand into the reactor blow down vessel, contacting content 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.

公开(公告)号：WO2015082568A1

公开(公告)日：2015-06-11

申请号：PCT/EP2014/076464

申请日：2014-12-03

Applicant: BASELL POLYOLEFINE GMBH

Inventor： KHAYRULLIN, Danir ,  DEUERLING, Michael ,  WOLF, Christoph ,  NEUMANN, Erich ,  FIBLA, Claudio

IPC: C08F6/00 ,  C08F6/10 ,  C08F6/12 ,  C08J11/02 ,  C08F10/00 ,  G01F23/288 ,  G01N9/24

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

Abstract: 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, the process comprising the steps of entering the reaction mixture into a separation vessel; separating the reaction mixture into in a gaseous fraction and a liquid fraction; and withdrawing the gaseous fraction from the top of the separation vessel and withdrawing the liquid fraction from the bottom of the separation vessel, wherein the separation is carried out at a pressure of from 15 MPa to 50 MPa and a temperature of from 120°C to 300°C; the filling level of the liquid fraction in the separation vessel is measured by a radiometric level measurement system comprising at least two radio-active 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, and wherein radioactive sources are installed at at least two different heights of the separation vessel, and radiation detectors are installed at least three different heights of the separation vessel and 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 in a polymerization reactor comprising a such a process for separating polymeric and gaseous components.

Abstract translation: 在自由基聚合引发剂存在下，通过烯属不饱和单体的高压聚合获得的反应混合物的聚合物和气态组分的分离方法，该方法包括以下步骤：将反应混合物进入分离容器; 将反应混合物分离成气态馏分和液体馏分; 并从分离容器的顶部取出气体馏分并从分离容器的底部排出液体部分，其中分离在15MPa至50MPa的压力和120℃至120℃的温度下进行 300℃; 分离容器中的液体馏分的填充水平通过包括至少两个无线电源和至少三个辐射检测器的辐射水平测量系统测量，并且填充水平由产品排放阀控制，该产品排出阀基于数据来进行操作 来自液面测量系统，并且其中放射源安装在分离容器的至少两个不同高度处，并且辐射探测器安装在分离容器的至少三个不同的高度上，以及用于由烯属不饱和单体制备乙烯均聚物或共聚物的方法 在聚合反应器中存在自由基聚合引发剂，其温度为100℃至350℃，压力范围为110MPa至500MPa，包括用于分离聚合物和气态组分的方法。

公开(公告)号：WO2015091384A1

公开(公告)日：2015-06-25

申请号：PCT/EP2014/077810

申请日：2014-12-15

Applicant: BASELL POLYOLEFINE GMBH

Inventor： NEUMANN, Erich ,  KHAYRULLIN, Danir ,  FIBLA, Claudio

IPC: B01J3/00

CPC classification number: C08F6/10 ,  B01D19/0036 ,  B01D19/0063 ,  B01J3/002 ,  B01J19/2415 ,  B01J2219/185 ,  B01J2219/1943 ,  B01J2219/1946 ,  C08F10/02 ,  Y02P20/582

Abstract: Vessel for separating, at a pressure of from 10 MPa to 50 MPa, a composition comprising liquid components and gaseous components into a liquid fraction and a gaseous fraction, wherein the separation vessel has a cylindrical shape and is vertically arranged, the separation vessel has at its top a manhole, which is surrounded by a thickened part of the separation vessel wall; the separation vessel is equipped with means for introducing the composition into the separation vessel, with means for withdrawing a gaseous fraction from the top of the separation vessel, and with means for withdrawing a liquid fraction from the bottom of the separation vessel; and the separation vessel bears at least one bursting disc which is held by a bursting disc holder which is installed pressure-tight within a boring in the thickened part of the separation vessel wall, process for separating, at a pressure of from 10 MPa to 50 MPa, a composition comprising liquid components and gaseous components into a liquid fraction and a gaseous fraction, and 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 1 10 MPa to 500 MPa in a polymerization reactor, wherein the separation of the reaction mixture obtained by the polymerization is carried out in such a separation vessel.

Abstract translation: 用于在10MPa至50MPa的压力下将包含液体组分和气体组分的组合物分离成液体馏分和气体馏分的容器，其中分离容器具有圆柱形并且垂直布置，分离容器具有 其顶部是孔洞，其被分离容器壁的增厚部分包围; 分离容器配备有用于将组合物引入分离容器的装置，具有用于从分离容器的顶部排出气态馏分的装置，以及用于从分离容器的底部排出液体部分的装置; 并且分离容器承载至少一个破裂盘，该破裂盘由在压力较高的分离容器壁的增厚部分的镗孔内安装的爆破盘保持器保持，在10MPa至50℃的压力下分离 MPa，将包含液体组分和气态组分的组合物加入到液体馏分和气体馏分中，以及在自由基聚合引发剂存在下，在100℃至350℃的温度下由烯属不饱和单体制备乙烯均聚物或共聚物的方法 并且在聚合反应器中的压力范围为10MPa至500MPa，其中通过聚合获得的反应混合物的分离在这种分离容器中进行。

公开(公告)号：WO2004047959A1

公开(公告)日：2004-06-10

申请号：PCT/EP2003/013123

申请日：2003-11-21

Applicant: BASELL POLYOLEFINE GMBH ,  MÄHLING, Frank-Olaf ,  NEUMANN, Erich ,  FINETTE, Andre-Armand ,  NIEKEN, Ulrich

Inventor： MÄHLING, Frank-Olaf ,  NEUMANN, Erich ,  FINETTE, Andre-Armand ,  NIEKEN, Ulrich

IPC: B01D53/86

CPC classification number: B01D53/8687 ,  B01D53/8668 ,  C08F6/005 ,  C08F6/26

Abstract: In a method of removing volatile oxidizable compounds from particles present in a container, a gas stream is continuously introduced into the container, the gas stream takes up the oxidizable compound from the particles in the container and a gas stream laden with the oxidizable compound is discharged from the container. In the method of the present invention, oxygen is added to the gas stream which has been discharged and the oxidizable compound present in the discharged gas stream is subsequently at least partly catalytically oxidized by means of the oxygen and this oxidized gas stream forms at least part of the gas stream introduced, so that the gas stream is circulated. This makes safe and inexpensive removal of the oxidizable compounds from the particles possible.

Abstract translation: 在从容器中存在的颗粒中除去挥发性可氧化化合物的方法中，将气流连续地引入容器中，气流从容器中的颗粒中吸收可氧化的化合物，并且将含有可氧化化合物的气流排出 从容器。 在本发明的方法中，向被排出的气流中加入氧气，然后通过氧气将存在于排出气流中的可氧化化合物至少部分地进行催化氧化，该氧化气流形成至少一部分 的气流引入，使气流循环。 这使得可以从可能的颗粒中安全和便宜地除去可氧化化合物。