-
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.
-
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.
-
公开(公告)号：US10358510B2
公开(公告)日：2019-07-23
申请号：US16300147
申请日：2017-05-09
Applicant: Basell Polyolefine GmbH
Inventor： Andrei Gonioukh , Thomas Herrmann , Dieter Littmann , Andre-Armand Finette , Sven Wolfram
Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor, wherein at least one of a pre-heater or pre-cooler, a polymerization reactor or a post reactor cooler is composed of tubes of a length from 5 m to 25 m which are flanged together, either directly or via bends, and the flanges are covered by a chimney construction, and wherein air is conveyed through the chimney construction and the air exiting the chimney construction is monitored with respect to the hydrocarbons concentration.
-
公开(公告)号：US20190177447A1
公开(公告)日：2019-06-13
申请号：US16300147
申请日：2017-05-09
Applicant: Basell Polyolefine GmbH
Inventor： Andrei Gonioukh , Thomas Herrmann , Dieter Littmann , Andre-Armand Finette , Sven Wolfram
CPC classification number: C08F10/02 , B01J19/0013 , B01J19/002 , B01J19/06 , B01J19/2415 , B01J2219/00033 , B01J2219/00092 , B01J2219/00256 , C08F2/01 , C08F2/34
Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor, wherein at least one of a pre-heater or pre-cooler, a polymerization reactor or a post reactor cooler is composed of tubes of a length from 5 m to 25 m which are flanged together, either directly or via bends, and the flanges are covered by a chimney construction, and wherein air is conveyed through the chimney construction and the air exiting the chimney construction is monitored with respect to the hydrocarbons concentration.
-
公开(公告)号：US20190169318A1
公开(公告)日：2019-06-06
申请号：US16300177
申请日：2017-05-09
Applicant: Basell Polyolefine GmbH
Inventor： Andrei Gonioukh , Thomas Herrmann , Dieter Littmann , Andre-Armand Finette , Siegfried Mischok
Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor which is installed within a protective enclosure, wherein the production line is monitored with respect to an occurrence of a leakage of monomers or of reaction mixture and a water based deluge system, which provides droplets of a diameter in a range from 25 μm to 20 mm to the enclosed area, is automatically started with a minimum flow rate of 10 L/min per m2 of enclosed area when a leakage of monomers or of reaction mixture is detected.
-
Patent Agency Ranking
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.
-
17.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.
-
18.发明申请PROCESS FOR SEPARATING COMPONENTS OF A REACTION MIXTURE OBTAINED BY HIGH-PRESSURE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS 有权用于分离由乙烯基不饱和单体的高压聚合获得的反应混合物组分的方法公开(公告)号：US20160311939A1
公开(公告)日：2016-10-27
申请号：US15101351
申请日：2014-12-03
Applicant: BASELL POLYOLEFINE GMBH
Inventor： Georg Groos , Erich Neumann , Michael Deuerling , Dieter Littmann
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: The present disclosure 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 in a gaseous fraction and a liquid fraction, 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. in a separation vessel which has a vertically arranged cylindrical shape with a ratio of length to diameter L/D of from 4 to 10 and which is equipped with an inlet pipe which 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.
Abstract translation: 本公开内容涉及通过在自由基聚合引发剂存在下将烯键式不饱和单体高压聚合得到的反应混合物中的聚合物和气态组分分离成气态馏分和液体馏分的方法，其中分离 在具有垂直排列的圆柱形状的分离容器中，在15MPa至50MPa的压力和120℃至300℃的温度下进行，长度与直径L / D的比率为4 至10，并且其具有从顶部垂直延伸到分离容器中的入口管; 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。
-
公开(公告)号：US10562986B2
公开(公告)日：2020-02-18
申请号：US16099996
申请日：2017-05-09
Applicant: Basell Polyolefine GmbH
Inventor： Andrei Gonioukh , Thomas Herrmann , Dieter Littmann , Andre-Armand Finette , Sven Wolfram
IPC: C08F2/34 , C08F2/01 , B01J19/18 , C08F210/02
Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor, wherein the process comprises monitoring the surrounding of the production line with respect to an occurrence of a leakage of monomers or of reaction mixture by an IR point detector arrangement of at least three groups of IR point detectors which are capable of detecting hydrocarbons and the groups of IR point detectors are operating according to a voting logic and starting automatically an emergency pressure release program when a group of IR point detectors of the IR point detector arrangement detects the presence of hydrocarbons.
-
20.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.
-
-
-
-
-
-
-
-
-
Search Results
33
records
(took 0.019 seconds)
