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1. 发明申请

US20210214472A1 PROCESS FOR POLYMERIZING OLEFINS IN THE GAS-PHASE 有权
公开(公告)号：US20210214472A1
公开(公告)日：2021-07-15
申请号：US16967387
申请日：2019-02-04
申请人： Basell Polyolefine GmbH
发明人： Pietro Baita , Maurizio Dorini , Giulia Mei , Gerhardus Meier , Giuseppe Penzo , Riccardo Rinaldi
IPC分类号： C08F10/02 , C08F2/34 , C08F2/01 , C08F2/00 , C08F10/06 , C08L23/08
摘要： 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.

2. 发明授权

US09458259B2 Process for treating polyolefin particles obtained by gas-phase polymerization 有权
标题翻译：用于处理通过气相聚合获得的聚烯烃颗粒的方法
公开(公告)号：US09458259B2
公开(公告)日：2016-10-04
申请号：US14650532
申请日：2013-12-11
申请人： Basell Polyolefine GmbH
发明人： Giuseppe Penzo , Giulia Mei , Gabriele Mei , Antonio De Lucia , Pietro Baita
IPC分类号： C08G63/02 , C08F10/02 , C08F6/00 , C08F6/02 , B29B13/00
CPC分类号： C08F10/02 , B29B2013/005 , C08F6/005 , C08F6/02 , C08L23/04 , C08F210/16 , C08F210/14 , C08F2500/12 , C08F2500/24
摘要： 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.

3. 发明授权

US11078307B1 Process for polymerizing olefins in the gas-phase 有权
公开(公告)号：US11078307B1
公开(公告)日：2021-08-03
申请号：US16967387
申请日：2019-02-04
申请人： Basell Polyolefine GmbH
发明人： Pietro Baita , Maurizio Dorini , Giulia Mei , Gerhardus Meier , Giuseppe Penzo , Riccardo Rinaldi
IPC分类号： C08F10/02 , C08F2/34 , C08F2/01 , C08F10/06 , C08L23/08 , C08F2/00
摘要： 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.

4. 发明申请

US20170335028A1 HIGH-PRESSURE POLYMERIZATION PROCESS OF ETHYLENICALLY UNSATURATED MONOMERS IN A TUBULAR REACTOR 有权
公开(公告)号：US20170335028A1
公开(公告)日：2017-11-23
申请号：US15674176
申请日：2017-08-10
申请人： Basell Polyolefine GmbH
发明人： Dieter Littmann , Jürgen Peter Mohrbutter , Giulia Mei , Andre-Armand Finette , Sven Georg Wolfram , Michael Deuerling , Danir Khayrullin , Georg Groos , Christoph Wolf
IPC分类号： C08F110/02 , B01J19/24 , C08J5/18
CPC分类号： C08F110/02 , B01J19/2415 , C08F2/01 , C08F2/34 , C08J5/18 , C08J2323/06 , C08F2/00 , C08F2500/12 , C08F2500/26
摘要： 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.

5. 发明授权

US09758603B2 High-pressure polymerization process of ethylenically unsaturated monomers in a tubular reactor 有权
公开(公告)号：US09758603B2
公开(公告)日：2017-09-12
申请号：US15461064
申请日：2017-03-16
申请人： Basell Polyolefine GmbH
发明人： Dieter Littmann , Jürgen Peter Mohrbutter , Giulia Mei , Andre-Armand Finette , Sven Georg Wolfram , Michael Deuerling , Danir Khayrullin , Georg Groos , Christoph Wolf
IPC分类号： C08F110/02 , C08F2/01 , C08J5/18 , B01J19/24 , C08F2/34 , C08F2/38
CPC分类号： C08F110/02 , B01J19/2415 , C08F2/01 , C08F2/34 , C08J5/18 , C08J2323/06 , C08F2/00 , C08F2500/12 , C08F2500/26
摘要： 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.

6. 发明申请

US20170022303A1 HIGH-PRESSURE POLYMERIZATION PROCESS OF ETHYLENICALLY UNSATURATED MONOMERS IN A TUBULAR REACTOR 有权
标题翻译：管状反应器中乙烯基不饱和单体的高压聚合方法
公开(公告)号：US20170022303A1
公开(公告)日：2017-01-26
申请号：US15240084
申请日：2016-08-18
申请人： Basell Polyolefine GmbH
发明人： Dieter Littmann , Jurgen Peter Mohrbutter , Giulia Mei , Andre-Armand Finette , Sven Georg Wolfram , Michael Deuerling , Danir Khayrullin , Georg Groos , Christoph Wolf
IPC分类号： C08F110/02 , B01J19/24
CPC分类号： C08F110/02 , B01J19/2415 , C08F2/01 , C08F2/34 , C08J5/18 , C08J2323/06 , C08F2/00 , C08F2500/12 , C08F2500/26
摘要： 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.
摘要翻译：本技术涉及在自由基聚合引发剂存在下聚合或共聚烯键式不饱和单体的方法，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。

7. 发明申请

US20150322178A1 PROCESS FOR TREATING POLYOLEFIN PARTICLES OBTAINED BY GAS-PHASE POLYMERIZATION 有权
标题翻译：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
申请人： Basell Polyolefine GmbH
发明人： Giuseppe Penzo , Giulia Mei , Gabriele Mei , Antonio De Lucia , Pietro Baita
IPC分类号： C08F10/02
CPC分类号： C08F10/02 , B29B2013/005 , C08F6/005 , C08F6/02 , C08L23/04 , C08F210/16 , C08F210/14 , C08F2500/12 , C08F2500/24
摘要： 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.
摘要翻译：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。

8. 发明授权

US11549749B2 Pellet drying and degassing method 有权
公开(公告)号：US11549749B2
公开(公告)日：2023-01-10
申请号：US16623579
申请日：2018-06-21
申请人： Basell Polyolefine GmbH
发明人： Giulia Mei , Juergen Mohrbutter , Dieter Littmann , Christoph Wolf , Andre-Armand Finette , Michael Deuerling , Giuseppe Penzo
IPC分类号： F26B3/06 , B01J2/20 , C08F110/02 , F26B5/08 , F26B17/22 , F26B21/00
摘要： 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.

9. 发明申请

US20220106418A1 HIGH-PRESSURE POLYMERIZATION PROCESS OF ETHYLENICALLY UNSATURATED MONOMERS IN A POLYMERIZATION REACTOR 有权
公开(公告)号：US20220106418A1
公开(公告)日：2022-04-07
申请号：US17312288
申请日：2019-12-16
申请人： Basell Polyolefine GmbH
发明人： Dieter Littmann , Andre-Armand Finette , Christoph Wolf , Michael Deuerling , Juergen Mohrbutter , Danir Khayrullin , Giulia Mei , Erich Neumann
IPC分类号： C08F10/02 , C08F2/01 , B01J19/00 , B01J19/24 , B01J3/02 , B01J3/00
摘要： 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.

10. 发明申请

US20210332167A1 GAS-PHASE PROCESS FOR PREPARING ETHYLENE POLYMERS 有权
公开(公告)号：US20210332167A1
公开(公告)日：2021-10-28
申请号：US17312822
申请日：2019-12-16
申请人： Basell Polyolefine GmbH
发明人： Giuseppe Penzo , Gerhardus Meier , Ulf Schueller , Pietro Baita , Giulia Mei , Elke Damm
IPC分类号： C08F110/02 , B01J8/18 , B01J8/26 , B01J8/00 , B01J23/44 , B01J23/42 , B01J21/04 , B01J23/72
摘要： 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.

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