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公开(公告)号：WO2017146823A1
公开(公告)日：2017-08-31
申请号：PCT/US2017/012422
申请日：2017-01-06
CPC分类号： B01J3/042 , B01J3/04 , B01J19/18 , B01J19/2415 , B01J2219/00094 , B01J2219/00103 , B01J2219/00108 , B01J2219/00159 , B01J2219/00162 , C08F10/02
摘要： Disclosed are an apparatus and a process for polymerizing ethylene under high pressure providing more than one injection point for one initiator injection pump.
摘要翻译： 公开了一种用于在高压下聚合乙烯的设备和方法，为一个引发剂注射泵提供多于一个注入点。
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公开(公告)号：WO2015114401A1
公开(公告)日：2015-08-06
申请号：PCT/IB2014/003192
申请日：2014-12-16
CPC分类号： B01D21/267 , B01D45/12 , B01J8/0055 , B01J19/2415 , B01J2219/24 , B04C5/04 , B04C5/12 , B04C5/20 , B04C9/00 , B04C2009/008 , C08F110/02
摘要： Systems and methods for separating particles from fluids are provided. The system comprises a vessel with at least two fluid inlets and a fluid outlet wherein one fluid inlet is positioned higher in the vessel than the other fluid inlet. The fluid inlets may be connected to a polymerization reactor and each fluid inlet may be configured to deliver fluid to the vessel from a different zone of the polymerization reactor. During shut-down of a polymerization reactor, reaction mixture is discharged to a separation system where polymer particles are removed from the mixture prior to being released into the atmosphere.
摘要翻译： 提供了用于从流体中分离颗粒的系统和方法。 该系统包括具有至少两个流体入口和流体出口的容器，其中一个流体入口位于容器中比其它流体入口更高的位置。 流体入口可以连接到聚合反应器，并且每个流体入口可以被配置成将流体从聚合反应器的不同区域输送到容器。 在聚合反应器关闭期间，将反应混合物排出到分离系统，其中在释放到大气中之前将聚合物颗粒从混合物中除去。
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公开(公告)号：WO2020102388A1
公开(公告)日：2020-05-22
申请号：PCT/US2019/061227
申请日：2019-11-13
发明人： CLYMANS, Paul, J. , GALLIANO, Jefferson, P. , D'HOOGHE, Philippe, A.P. , DEWITTE, Cindy , LAMMENS, Henri, A.
摘要： Controlling the shutdown of a polyethylene reactor system that includes a secondary compressor, a reactor, a high pressure let down valve (HPLDV), a high-pressure separator, and a high-pressure recycle gas system is provided. After a partial or complete shutdown of secondary compressor, HPLDV opens to a pre-set open position until the reactor pressure reduces to either a pre-set reduced pressure limit or a until the slope of the reactor gas density to reactor pressure exceeds 0.15. The HPLDV controls the pressure to a pressure set point.
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公开(公告)号：WO2017058368A1
公开(公告)日：2017-04-06
申请号：PCT/US2016/046340
申请日：2016-08-10
CPC分类号： C08F10/02 , B01J3/042 , B01J3/044 , B01J4/008 , B01J8/20 , B01J19/002 , B01J19/2415 , B01J2204/005 , B01J2219/00006 , B01J2219/00094 , B01J2219/00123 , B01J2219/00159 , B01J2219/00162 , B01J2219/00259 , B01J2219/0027 , C08F10/00 , C08F2/00 , C08F4/34
摘要： Systems and processes for rapidly depressurizing a reactor system are disclosed. The systems and processes are particularly useful in the high pressure polymerization of ethylene.
摘要翻译： 公开了用于快速减压反应器系统的系统和方法。 该系统和方法在乙烯的高压聚合中特别有用。
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公开(公告)号：WO2015166297A1
公开(公告)日：2015-11-05
申请号：PCT/IB2014/003166
申请日：2014-12-16
发明人： LAMMENS, Henri, A.
CPC分类号： C08L23/06 , C08F10/02 , C08F2/00 , C08F2/01 , C08F110/02 , C08F2500/04 , C08F2500/12 , C08F210/02 , C08F220/14
摘要： A process for producing ethylene polymer in a tubular reactor includes compressing ethylene monomer to a pressure between 2000 bar and 2300 bar; heating the ethylene monomer to a temperature between 135°C and 200°C; introducing initiator into the tubular reactor in at least five separate locations, thereby defining at least five reaction zones; and separating the ethylene polymer from the reaction mixture; wherein the ethylene polymer has a polydispersity, Mw/Mn, no less than 7.0.
摘要翻译： 在管式反应器中生产乙烯聚合物的方法包括将乙烯单体压缩至2000巴和2300巴之间的压力; 将乙烯单体加热至135℃至200℃之间的温度; 在至少五个不同的位置将引发剂引入管式反应器，从而限定至少五个反应区; 并将乙烯聚合物与反应混合物分离; 其中所述乙烯聚合物具有多分散性，Mw / Mn不小于7.0。
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公开(公告)号：WO2007134671A1
公开(公告)日：2007-11-29
申请号：PCT/EP2007/003041
申请日：2007-04-04
申请人： EXXONMOBIL CHEMICAL PATENTS INC. , CORNELISSEN, Philip, Henri , GOOSSENS, Ivo, Theo , LAMMENS, Henri, A. , NAETS, Jan
CPC分类号： C08F10/02 , B01J19/2415 , B01J2219/00006 , B01J2219/00108 , B01J2219/00162 , C08F10/00 , C08F2/14 , C08F2/01 , C08F2/00
摘要： The invention provides a process and an apparatus for the high pressure polymerization of ethylene in which a jet pump is used to pump a fluid into a polymer/monomer product mixture leaving a bumped tubular reactor. The fluid may be recycled monomer or another fluid such as a modifier.
摘要翻译： 本发明提供了用于乙烯的高压聚合的方法和装置，其中使用喷射泵将流体泵入离开凸起的管式反应器的聚合物/单体产物混合物中。 流体可以是再循环的单体或另一种流体，例如改性剂。
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7.发明申请
公开(公告)号：WO2023034685A1
公开(公告)日：2023-03-09
申请号：PCT/US2022/075008
申请日：2022-08-16
IPC分类号： C08F110/02 , C08F2/02 , C08F2/38
摘要： Methods for polymerizing polyethylene in a tubular reactor may comprise: compressing ethylene monomer to a. pressure from about 2900 bar to about 3150 bar; introducing the compressed ethylene monomer and a modifier into the tubular reactor having two or more reaction zones, wherein each of the two or more reaction zones independently has a peak zonal temperature within a range of about 180°C to about 300°C; and producing a polyethylene composition having a density of about 0.9320 g/cm3 to about 0.9350 g/cm3 measured by ASTM D1505-18 using sample preparation according to ASTM 02839-16.
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8.发明申请
公开(公告)号：WO2021067007A1
公开(公告)日：2021-04-08
申请号：PCT/US2020/049701
申请日：2020-09-08
摘要： Methods for producing polyethylene compositions having broader melt index ratio and narrower molecular weight distribution in high pressure multi-feed tubular reactors are provided. The methods are useful in multi-feed tubular reactors comprising three or more reaction zones. The first reaction zone or the first and second reaction zone having a peak temperature that is lower than standard peak temperatures for polymerization of ethylene monomer in a tubular reactor.
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公开(公告)号：WO2017039877A1
公开(公告)日：2017-03-09
申请号：PCT/US2016/044018
申请日：2016-07-26
IPC分类号： C08F2/01 , C08F2/34 , C08F2/38 , C08F210/02
CPC分类号： C08F10/02 , B01J19/0006 , B01J2219/00162 , C08F210/02 , C08F2410/01 , C08F2/01 , C08F2/38 , C08F2/34 , C08F110/02 , C08F2500/08
摘要： Processes and systems for controlling modifier concentration in an ethylene polymerization reactor are disclosed.
摘要翻译： 公开了用于控制乙烯聚合反应器中改性剂浓度的方法和系统。
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10.发明申请
公开(公告)号：WO2007018871A1
公开(公告)日：2007-02-15
申请号：PCT/US2006/026488
申请日：2006-07-05
申请人： EXXONMOBIL CHEMICAL PATENTS INC. , GOOSSENS, Ivo, T. , CIANCIO, Fausto, F. , CLYMANS, Paul, J. , CORNELISSEN, Philip, H. , DE COSTER, Martin, J. , DE KOSTER, Willy , LAMMENS, Henri, A. , VAN NULAND, Tom
发明人： GOOSSENS, Ivo, T. , CIANCIO, Fausto, F. , CLYMANS, Paul, J. , CORNELISSEN, Philip, H. , DE COSTER, Martin, J. , DE KOSTER, Willy , LAMMENS, Henri, A. , VAN NULAND, Tom
CPC分类号： C08F10/02 , B01J19/2415 , B01J2219/00006 , B01J2219/0002 , B01J2219/0004 , B01J2219/00069 , B01J2219/00094 , B01J2219/00159 , B01J2219/00162 , B01J2219/00164 , B01J2219/00252 , C08F210/02 , Y02P30/48 , Y10S526/918 , Y10S526/92 , C08F2/00 , C08F2/01 , C08F218/08 , C08F2/38
摘要： The invention relates to a process for the manufacture of ethylene polymers and copolymers in which ethylene is compressed in a primary compressor at a throughput of at least 55 tonnes/hour, mixed with recycled ethylene and further compressed in a two-stage reciprocating secondary compressor having at least 14 cylinders to a pressure of at least 2300 bar at a throughput of at least 120 tonnes/hour, heating at least a portion of that ethylene to a temperature of at least 95°C and introducing it into a tubular reactor of diameter at least 65 mm and a length of at least 1500 m, introducing initiator in at least three reaction zones to give a conversion of at least 28% and maintaining a pressure drop over the reactor to maintain a flow velocity of at least 6 m/s.
摘要翻译： 本发明涉及一种制备乙烯聚合物和共聚物的方法，其中乙烯在初级压缩机中以至少55吨/小时的产量被压缩，与再循环乙烯混合并在二级往复式二次压缩机中进一步压缩，其具有 至少14个气瓶，至少2300巴的压力，至少120吨/小时的产量，将该乙烯的至少一部分加热至至少95℃的温度，并将其引入到直径为 至少65mm，长度至少为1500μm，在至少三个反应区域引入引发剂，以产生至少28％的转化率，并保持反应器上的压降保持至少6m / s的流速。
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