-
公开(公告)号：US11549749B2
公开(公告)日：2023-01-10
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.
-
公开(公告)号：US20210332167A1
公开(公告)日：2021-10-28
申请号：US17312822
申请日：2019-12-16
Applicant: Basell Polyolefine GmbH
Inventor： Giuseppe Penzo , Gerhardus Meier , Ulf Schueller , Pietro Baita , Giulia Mei , Elke Damm
Abstract: A process for preparation of an ethylene polymer in a gas-phase polymerization unit comprising a gas-phase polymerization reactor by homopolymerizing ethylene or copolymerizing ethylene and one or more C4-C12-1-alkenes in a reaction gas made from or containing propane as polymerization diluent in the presence of a pre-activated polymerization catalyst, wherein a purified propane feed stream made from or containing at least 99 mol % propane and from 0.1 to 100 ppm mol propylene is fed to the gas-phase polymerization unit.
-
公开(公告)号：US09133291B2
公开(公告)日：2015-09-15
申请号：US14362842
申请日：2012-12-04
Applicant: Basell Polyolefine GmbH
Inventor： Massimo Covezzi , Giuseppe Penzo , Gabriele Mei , Giulia Mei , Pietro Baita , Gerhardus Meier , Antonio De Lucia , Ulf Schueller , Gianpiero Ferraro
CPC classification number: C08F110/02 , C08F2/001 , C08F2/34 , C08F10/00 , C08F10/02 , C08F2500/12 , C08F2500/18 , C08F2500/24 , C08F2/00 , C08F2/01
Abstract: Process for transferring polyolefin particles from a first gas-phase polymerization reactor to a second gas-phase polymerization reactor in a multistage polymerization of olefins carried out in at least two serially connected gas-phase polymerization reactors,wherein the first gas-phase reactor is a fluidized-bed reactor comprising a gas distribution grid and a settling pipe, which is integrated with its upper opening into the distribution grid and contains a bed of polyolefin particles which moves from top to bottom of the settling pipe, the process comprising the steps of introducing a fluid into the settling pipe in an amount that an upward stream of the fluid is induced in the bed of polyolefin particles above the fluid introduction point; withdrawing polyolefin particles from the lower end of the settling pipe; and transferring the withdrawn polyolefin particles into the second gas-phase polymerization reactor, process for polymerizing olefins comprising such a process for transferring polyolefin particles, reactor suitable as first gas-phase polymerization reactor in the process for polymerizing olefins and process for discharging polyolefin particles from a fluidized-bed reactor.
Abstract translation: 在至少两个串联连接的气相聚合反应器中进行的烯烃多级聚合中将聚烯烃颗粒从第一气相聚合反应器转移到第二气相聚合反应器的方法，其中第一气相反应器是 流化床反应器包括气体分配网格和沉降管，其与其上部开口集成到分配网格中并且包含从沉降管的顶部移动到底部的聚烯烃颗粒床，该方法包括以下步骤：引入 流入沉降管中的流体，其量为在流体引入点上方的聚烯烃颗粒床中引起流体向上流; 从沉降管的下端取出聚烯烃颗粒; 并将取出的聚烯烃颗粒转移到第二气相聚合反应器中，用于聚合烯烃的方法包括这种转移聚烯烃颗粒的方法，在聚合烯烃的方法中适合作为第一气相聚合反应器的反应器和用于从聚烯烃中排出聚烯烃颗粒的方法 流化床反应器。
-
公开(公告)号：US11078307B1
公开(公告)日：2021-08-03
申请号：US16967387
申请日：2019-02-04
Applicant: Basell Polyolefine GmbH
Inventor： Pietro Baita , Maurizio Dorini , Giulia Mei , Gerhardus Meier , Giuseppe Penzo , Riccardo Rinaldi
Abstract: A gas-phase polymerization reactor for the gas-phase polymerization of olefins including a polymerization zone having a recycle line for (a) withdrawing reaction gas from the reactor, (b) leading the reaction gas through a heat-exchanger for cooling, and (c) feeding the reaction gas back to the reactor, wherein the recycle line has the heat-exchanger, a centrifugal compressor having variable guide vanes, and a butterfly valve, and a related process for preparing an olefin polymer in the gas-phase polymerization reactor.
-
公开(公告)号：US09399688B2
公开(公告)日：2016-07-26
申请号：US14889794
申请日：2014-05-13
Applicant: Basell Polyolefine GmbH
Inventor： Giuseppe Penzo , Gabriele Mei , Gerhardus Meier , Ulf Schueller , Antonio Ciarrocchi
IPC: C08F2/00 , B01J19/18 , C08F110/02 , B01J19/24
CPC classification number: C08F110/02 , B01J8/0025 , B01J8/1863 , B01J8/1872 , B01J8/26 , B01J19/245 , B01J2208/00274 , B01J2208/00292 , B01J2208/00557 , B01J2208/00752 , B01J2208/00761 , B01J2208/00769 , B01J2208/00991 , B01J2219/24 , C08F10/00 , C08F2/001 , C08F2/34 , C08F2/01 , C08F2500/12 , C08F2500/07 , C08F2500/24 , C08F2500/18
Abstract: A process for polymerizing olefins at temperatures of from 30° C. to 140° C. and pressures of from 1.0 MPa to 10 MPa in the presence of a polymerization catalyst in a multistage polymerization of olefins in at least two serially connected gas-phase polymerization reactors, and apparatus for the multistage polymerization of olefins, comprising at least two serially connected gas-phase polymerization reactors and a device for transferring polyolefin particles from an up-stream gas-phase polymerization reactor to a downstream gas-phase polymerization reactor, the transferring device comprising—a gas/solid separation chamber placed downstream of the upstream gas-phase polymerization which gas/solid separation chamber is equipped at a lower part with an net for introducing a fluid, and—connected to the gas/solid separation chamber at least two lock hoppers, placed in a parallel arrangement, each connected to the downstream gas-phase polymerization reactor.
Abstract translation: 在烯烃的多段聚合中在聚合催化剂存在下，在至少两个串联连接的气相聚合中，在30℃至140℃的温度和1.0MPa至10MPa的温度下使烯烃聚合的方法 反应器和用于烯烃多段聚合的装置，包括至少两个串联连接的气相聚合反应器和用于将聚烯烃颗粒从上游气相聚合反应器转移到下游气相聚合反应器的装置，转移 装置包括：在上游气相聚合的下游设置的气/固分离室，气/固分离室在下部配备有用于引入流体的网，并至少与气/固分离室连接 两个锁定料斗，并排布置，每个连接到下游气相聚合反应器。
-
Patent Agency Ranking
6.发明申请PROCESS FOR TREATING POLYOLEFIN PARTICLES OBTAINED BY GAS-PHASE POLYMERIZATION 有权用于处理由气相聚合获得的聚烯烃颗粒的方法公开(公告)号：US20150322178A1
公开(公告)日：2015-11-12
申请号：US14650532
申请日：2013-12-11
Applicant: Basell Polyolefine GmbH
Inventor： Giuseppe Penzo , Giulia Mei , Gabriele Mei , Antonio De Lucia , Pietro Baita
IPC: C08F10/02
CPC classification number: C08F10/02 , B29B2013/005 , C08F6/005 , C08F6/02 , C08L23/04 , C08F210/16 , C08F210/14 , C08F2500/12 , C08F2500/24
Abstract: Process for treating polyolefin particles obtained by gas-phase polymerization of one or more olefins in the presence of a polymerization catalyst system and a C3-C5 alkane as polymerization diluent in a gas-phase polymerization reactor, the process comprising the steps of a) discharging the polyolefin particles continuously or discontinuously from the gas-phase polymerization reactor and transferring the particles to a first degassing vessel; b) contacting therein the polyolefin particles with a gaseous stream comprising at least 85 mol-% of C3-C5 alkane while the polyolefin particles have an average residence time in the first degassing vessel of from 5 minutes to 5 hours; c) transferring the polyolefin particles to a second degassing vessel; d) contacting therein the polyolefin particles with a stream comprising nitrogen and steam while the polyolefin particles have an average residence time in the second degassing vessel of from 5 minutes to 2 hours, wherein the contacting is carried out at conditions under which no condensation of water occurs; e) transferring the polyolefin particles to a third degassing vessel; f) contacting therein the polyolefin particles with a stream of nitrogen while the polyolefin particles have an average residence time in the third degassing vessel of from 5 minutes to 8 hours, and processes for preparing polyolefin polymers by gas-phase polymerization of one or more olefins in the presence of a polymerization catalyst system and a C3-C5 alkane as polymerization diluent in a gas-phase polymerization reactor, wherein the obtained polyolefin particles are subjected to such a treating process.
Abstract translation: 在气相聚合反应器中，在聚合催化剂体系和C3-C5烷烃作为聚合稀释剂的存在下，通过一种或多种烯烃的气相聚合得到的聚烯烃颗粒的处理方法，该方法包括以下步骤：a） 聚烯烃颗粒从气相聚合反应器连续或不连续地转移并转移到第一脱气容器中; b）使聚烯烃颗粒与包含至少85mol％的C 3 -C 5烷烃的气流接触，同时聚烯烃颗粒在第一脱气容器中的平均停留时间为5分钟至5小时; c）将聚烯烃颗粒转移到第二脱气容器; d）使聚烯烃颗粒与包含氮气和蒸汽的物流接触，同时聚烯烃颗粒在第二脱气容器中的平均停留时间为5分钟至2小时，其中接触是在没有水冷凝的条件下进行的 发生; e）将聚烯烃颗粒转移到第三脱气容器; f）使聚烯烃颗粒与氮气流接触，同时聚烯烃颗粒在第三脱气容器中的平均停留时间为5分钟至8小时，以及通过一种或多种烯烃的气相聚合制备聚烯烃聚合物的方法 在气相聚合反应器中存在聚合催化剂体系和作为聚合稀释剂的C 3 -C 5烷烃的情况下，将得到的聚烯烃颗粒进行这样的处理。
-
公开(公告)号：US12103988B2
公开(公告)日：2024-10-01
申请号：US17312822
申请日：2019-12-16
Applicant: Basell Polyolefine GmbH
Inventor： Giuseppe Penzo , Gerhardus Meier , Ulf Schueller , Pietro Baita , Giulia Mei , Elke Damm
IPC: C08F210/16 , B01J8/00 , B01J8/18 , B01J8/26 , B01J21/04 , B01J23/42 , B01J23/44 , B01J23/72 , C08F2/01 , C08F2/34 , C08F110/02
CPC classification number: C08F110/02 , B01J8/0055 , B01J8/1827 , B01J8/1863 , B01J8/1881 , B01J8/26 , B01J21/04 , B01J23/42 , B01J23/44 , B01J23/72 , C08F210/16 , C08F2/01 , C08F2/34
Abstract: A process for preparation of an ethylene polymer in a gas-phase polymerization unit comprising a gas-phase polymerization reactor by homopolymerizing ethylene or copolymerizing ethylene and one or more C4-C12-1-alkenes in a reaction gas made from or containing propane as polymerization diluent in the presence of a pre-activated polymerization catalyst, wherein a purified propane feed stream made from or containing at least 99 mol % propane and from 0.1 to 100 ppm mol propylene is fed to the gas-phase polymerization unit.
-
公开(公告)号：US20230001372A1
公开(公告)日：2023-01-05
申请号：US17782047
申请日：2020-12-09
Applicant: Basell Polyolefine GmbH
Inventor： Giuseppe Penzo , Maurizio Dorini , Riccardo Rinaldi , Silvia Soffritti , Giulia Mei
Abstract: Apparatus for carrying out a catalytic gas-phase olefin polymerization having a first polymerization zone for growing polymer particles to flow upward under fast fluidization or transport conditions, a second polymerization zone for the growing polymer particles to flow downward, and a gas/solid separation zone; wherein the second polymerization zone has an upper part being connected to the separation zone and a lower part being connected to the upper part; wherein the ratio of the height H01 of the separation zone to the diameter D01 of the separation zone is 2.5 to 4.5.
-
公开(公告)号：US11505625B2
公开(公告)日：2022-11-22
申请号：US16635459
申请日：2018-08-02
Applicant: Basell Polyolefine GmbH
Inventor： Gabriele Mei , Giulia Mei , Giuseppe Penzo
Abstract: A process for preparing an olefin polymer, including the steps of forming a particulate olefin polymer in a gas-phase polymerization reactor in the presence of a C3-C5 alkane as polymerization diluent, separating discharged polyolefin particles from concomitantly discharged gas at a pressure from 1 to 2.2 MPa, degassing the polyolefin particles at a pressure from 0.1 to 0.4 MPa with a gas made from or containing a C3-C5 alkane; and transferring the separated gas and the gas from the degassing to a work-up unit operated at a pressure from 0.001 to 0.2 MPa below the pressure of the separation, wherein the gas for degassing is continuously received from the work-up unit.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
22
records
(took 0.012 seconds)
