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    METHOD AND APPARATUS FOR DISCHARGING A POLYMER FROM A GAS-PHASE REACTOR
    4.
    发明申请
    METHOD AND APPARATUS FOR DISCHARGING A POLYMER FROM A GAS-PHASE REACTOR 有权
    从气相反应器中排出聚合物的方法和装置

    公开(公告)号：US20140114038A1

    公开(公告)日：2014-04-24

    申请号：US14125777

    申请日：2012-06-19

    申请人： Manfred Hecker ,  Paulus-Petrus Maria De Lange ,  Klaus Berhalter ,  Thomas Andreas Hora ,  Axel Hamann

    发明人： Manfred Hecker ,  Paulus-Petrus Maria De Lange ,  Klaus Berhalter ,  Thomas Andreas Hora ,  Axel Hamann

    IPC分类号： C08F2/34

    CPC分类号： C08F2/34 ,  B01J8/003 ,  B01J8/008 ,  B01J8/24 ,  B01J2208/00274 ,  B01J2208/00761 ,  B01J2208/00991 ,  C08F10/00 ,  Y10S526/92 ,  C08F2/01

    摘要： Process for discharging polyolefin particles from a gas-phase polymerization reactor of a pressure from 1.0 MPa to 10 MPa to a discharge vessel of a pressure from 0.1 MPa to 1.0 MPa wherein the discharging is carried out discontinuously through at least two discharge lines in which the polyolefin particles are transported horizontally or upwards, process for polymerizing olefins at temperatures of from 30° C. to 160° C. and pressures of from 1.0 MPa to 10 MPa in the presence of a polymerization catalyst in a gas-phase polymerization reactor comprising discharging the obtained polyolefin particles from the gas-phase polymerization reactor by the process for discharging polyolefin particles and apparatus for polymerizing olefins in the gas-phase comprising a polymerization reactor, a discharge vessel and at least two pipes connecting the polymerization reactor and the discharge vessel for discharging polyolefin particles, wherein the discharge lines are constructed in a way that the polyolefin particles conveyed from the polymerization reactor to the discharge vessel are transported horizontally or upwards.

    摘要翻译： 从压力为1.0MPa至10MPa的气相聚合反应器中将聚烯烃颗粒排放至压力为0.1MPa至1.0MPa的放电容器的方法，其中通过至少两个排放管线不连续地进行排放，其中， 聚烯烃颗粒水平或向上输送，在气相聚合反应器中在聚合催化剂存在下，在30℃至160℃的温度和1.0MPa至10MPa的压力下聚合烯烃的方法，包括排出 通过排出聚烯烃颗粒的方法从气相聚合反应器获得的聚烯烃颗粒和在气相中聚合烯烃的装置包括聚合反应器，放电容器和连接聚合反应器和放电容器的至少两个管， 排出聚烯烃颗粒，其中排出管线以这样的方式构造 从聚合反应器输送到放电容器的裂解烯烃颗粒被水平或向上输送。

    Apparatus for the Gas-Phase Polymerization of Olefins,in Particular Ethylene
    6.
    发明申请
    Apparatus for the Gas-Phase Polymerization of Olefins,in Particular Ethylene 有权
    用于烯烃气相聚合的装置，特别是乙烯

    公开(公告)号：US20070264171A1

    公开(公告)日：2007-11-15

    申请号：US11667349

    申请日：2005-11-09

    申请人： Eberhard Herrmann ,  Axel Sperber ,  Manfred Hecker ,  Rainer Karer ,  Klaus Berhalter ,  Paulus de Lange ,  Jorg Halpap ,  Cyrus Ahmadzade-Youssefi

    发明人： Eberhard Herrmann ,  Axel Sperber ,  Manfred Hecker ,  Rainer Karer ,  Klaus Berhalter ,  Paulus de Lange ,  Jorg Halpap ,  Cyrus Ahmadzade-Youssefi

    IPC分类号： C08F2/34

    CPC分类号： B01J8/1872 ,  B01J8/0055 ,  B01J8/24 ,  B01J2208/00256 ,  B01J2208/00274 ,  B04C5/081 ,  C08F6/02 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08L23/04 ,  C08F2/34

    摘要： An apparatus for the polymerization of olefins, in particular ethylene, comprising a gas-phase fluidized-bed reactor (1), a recycle gas line (2) connected to the reactor for discharging and recirculating the recycle gas stream comprising the unpolymerized olefin and a cyclone (3) located in the recycle gas line for the reduction and precipitation of the solid particles entrained in the recycle gas from the reactor, with the cyclone comprising an upper section (3a) which has an essentially vertical central axis, whose wall extends along a rotationally symmetric body and which is provided with a cyclone inlet (4) arranged eccentrically relative to the central axis, a middle section (3b) which adjoins the upper section (3a) and whose wall extends along a rotationally symmetric body which tapers in a downward direction, a lower section (3c) for discharging the solid particles precipitated from the recycle gas which adjoins the middle section (3b) and whose wall extends along a rotationally symmetric body and a tube (5) extending essentially axially symmetrically down into the upper section and, if appropriate, the middle section for discharging the recycle gas which has been freed of the particles. According to the invention the ratio Hi of the distance hi from the lower end of the tube (5) extending downward into the cyclone to the intersection (6) of an imaginary extension of the wall of the downward-extending tube (5) with the wall of the middle section (3b) to the diameter di of the downward-extending tube (5) is from 3 to 8, in particular from 4 to 7.

    摘要翻译： 用于烯烃聚合的装置，特别是乙烯，包括气相流化床反应器（1），连接到反应器的再循环气体管线（2），用于排出和再循环包含未聚合烯烃的循环气流和 旋流器（3），其位于循环气体管线中，用于还原和沉淀夹带在来自反应器的再循环气体中的固体颗粒，旋风分离器包括具有基本上垂直的中心轴线的上部分（3a），其上壁延伸 沿着旋转对称体并且设置有相对于中心轴线偏心布置的旋风入口（4），邻近上部（3a）并且其壁沿旋转对称体延伸的中间部分（3b） 用于排出邻近中间部分（3b）并且其壁延伸的再循环气体沉淀的固体颗粒的下部分（3c） 旋转对称体和基本上轴向对称地延伸到上部的管（5）以及适当的中间部分用于排出已经没有颗粒的循环气体。 根据本发明，与从下游进入旋风分离器的管（5）的下端距离h i i的距离h i i的比例H i 向下延伸的管（5）的壁与中间部分（3b）的壁与向下延伸的管（5）的直径d iI i的假想延伸为3至 8，特别是4到7。

    Process for the preparation of ethylene homopolymers or copolymers in a high-pressure reactor controlled by a model based predictive controller
    7.
    发明申请
    Process for the preparation of ethylene homopolymers or copolymers in a high-pressure reactor controlled by a model based predictive controller 有权

    公开(公告)号：US20120322956A1

    公开(公告)日：2012-12-20

    申请号：US13516703

    申请日：2010-12-20

    申请人： Christian-Ulrich Schmidt ,  Klaus Berhalter ,  Steve Makin ,  Kevin Taylor

    发明人： Christian-Ulrich Schmidt ,  Klaus Berhalter ,  Steve Makin ,  Kevin Taylor

    IPC分类号： C08F10/02 ,  C08F2/01

    CPC分类号： C08F110/02 ,  C08F2400/02 ,  C08F2/00 ,  C08F2500/12

    摘要： Process for the preparation of ethylene homopolymers or copolymers in the presence of free-radical polymerization initiator at from 100° C. to 350° C. and pressures in the range of from 160 MPa to 350 MPa in a high-pressure polymerization unit comprising a high-pressure reactor with one or more reaction zones, to each of which free-radical polymerization initiator is fed, which is controlled by a model based predictive controller carrying out the steps a) feeding target values for density and melt flow rate (MFR) of the ethylene homopolymer to be prepared as setpoint ranges to the controller if an ethylene homopolymers is prepared or feeding target values for density, MFR and copolymer composition of the ethylene copolymer of to be prepared as set-point ranges to the controller if an ethylene copolymer is prepared; b) measuring data in the high-pressure polymerization unit and calculating by means of a model based on these data a value for the density of the ethylene homopolymer or copolymer currently prepared in the high-pressure reactor; c) independently of step b), measuring data in the high-pressure polymerization unit and calculating by means of a model based on these data a value for the MFR of the ethylene homopolymer or copolymer currently prepared in the high-pressure reactor; d) if an ethylene copolymer is prepared, independently of steps b) and c), measuring data in the high-pressure polymerization unit and calculating by means of a model based on these data a value for the copolymer composition of the ethylene copolymer currently prepared in the high-pressure reactor, e) feeding the calculated values for the density, for the MFR and, if an ethylene copolymer is prepared, for the copolymer composition as controlled variables to the controller; and f) measuring data in the high-pressure polymerization unit and calculating by means of the controller based on these measured data, the setpoint ranges fed in step a) and the values calculated in steps b), c) and d) as outputs setpoint ranges for manipulated variables of the high-pressure polymerization unit including setpoint ranges for feeding the free-radical polymerization initiator, wherein the calculation of the setpoint ranges for feeding the free-radical polymerization initiator is repeated at least every 3 minutes, method of controlling a process for the preparation of ethylene homopolymers or copolymers in a high-pressure reactor and method for transitioning from one grade to another in a process for the preparation of ethylene homopolymers or copolymers in a high-pressure reactor.

    Apparatus and Process for the Gas-Phase Polymerization of Olefins
    8.
    发明申请
    Apparatus and Process for the Gas-Phase Polymerization of Olefins 有权
    用于烯烃气相聚合的装置和方法

    公开(公告)号：US20080014128A1

    公开(公告)日：2008-01-17

    申请号：US11667417

    申请日：2005-11-08

    申请人： Eberhard Herrmann ,  Manfred Hecker ,  Rainer Karer ,  Klaus Berhalter ,  Paulus de Lange ,  Jorg Halpap ,  Cyrus Ahmadzade-Youssefi

    发明人： Eberhard Herrmann ,  Manfred Hecker ,  Rainer Karer ,  Klaus Berhalter ,  Paulus de Lange ,  Jorg Halpap ,  Cyrus Ahmadzade-Youssefi

    IPC分类号： C08F10/00 ,  B01J19/18

    CPC分类号： B01J8/003 ,  B01J8/006 ,  B01J8/1872 ,  B01J2208/00256 ,  B01J2208/00274 ,  B01J2208/00761 ,  C08F10/00 ,  C08F110/02 ,  C08F2/34

    摘要： Apparatus for the polymerization of olefins, in particular ethylene, comprising a gas-phase fluidized-bed reactor (1), a product offtake line (15) for taking polymer particles either continuously or discontinuously from the reactor (1), which line (15) is connected to a depressurization vessel (2) for separating polymer particles and gas, a recycle gas filter (3) for freeing the gas of entrained fine particles connected to the depressurization vessel (2), a compressor which compresses the gas which has been freed of fine particles and recirculates it into the reactor (1), with the recycle gas filter (3) having an inlet chamber (4) provided with a gas inlet (6), an outlet chamber (5) provided with a gas outlet (7), an essentially vertical sheet-like filter medium (9) for retaining the fine particles which separates the inlet chamber (4) from the outlet chamber (5) and a particle outlet (8). The inlet chamber (4) has a dividing wall (10) which is arranged essentially parallel to the filter medium (9) and separates the inlet chamber (4) into an inflow region (4a), which is connected to the gas inlet (6), and a filter region (4b) in which the filter medium is located and has an upper opening and a lower opening which are dimensioned so that from 60 to 90% of the volume flow flows through the upper opening so that flow along the filter medium (9) from the top downward results.

    摘要翻译： 用于烯烃聚合的设备，特别是乙烯，包括气相流化床反应器（1），用于从反应器（1）连续或不连续地获取聚合物颗粒的出口管线（15），该管线（15） ）连接到用于分离聚合物颗粒和气体的减压容器（2），用于释放连接到减压容器（2）的夹带的细颗粒的气体的循环气体过滤器（3），压缩已经被 释放细颗粒并将其再循环到反应器（1）中，循环气体过滤器（3）具有设置有气体入口（6）的入口室（4），设置有气体出口的出口室（5） 7），用于保持将入口室（4）与出口室（5）分离的细颗粒和颗粒出口（8）的基本垂直的片状过滤介质（9）。 入口室（4）具有基本上与过滤介质（9）平行布置的分隔壁（10），并将入口室（4）分离成入口区域（4a），该入口区域连接到气体入口 6）和过滤器区域（4b），其中过滤介质位于并具有上开口和下开口，其尺寸使得体积流量的60％至90％流过上开口，使得沿着 过滤介质（9）从顶部向下的结果。

    Apparatus for the gas-phase polymerization of olefins, in particular ethylene
    10.
    发明授权
    Apparatus for the gas-phase polymerization of olefins, in particular ethylene 有权
    用于烯烃气相聚合的装置，特别是乙烯

    公开(公告)号：US07781544B2

    公开(公告)日：2010-08-24

    申请号：US11667349

    申请日：2005-11-09

    申请人： Eberhard Herrmann ,  Axel Sperber ,  Manfred Hecker ,  Rainer Karer ,  Klaus Berhalter ,  Paulus De Lange ,  Jörg Halpap ,  Cyrus Ahmadzade-Youssefi

    发明人： Eberhard Herrmann ,  Axel Sperber ,  Manfred Hecker ,  Rainer Karer ,  Klaus Berhalter ,  Paulus De Lange ,  Jörg Halpap ,  Cyrus Ahmadzade-Youssefi

    IPC分类号： C08F2/00 ,  F27B15/08

    CPC分类号： B01J8/1872 ,  B01J8/0055 ,  B01J8/24 ,  B01J2208/00256 ,  B01J2208/00274 ,  B04C5/081 ,  C08F6/02 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08L23/04 ,  C08F2/34

    摘要： An apparatus for the polymerization of olefins, in particular ethylene, comprising a gas-phase fluidized-bed reactor (1), a recycle gas line (2) connected to the reactor for discharging and recirculating the recycle gas stream comprising the unpolymerized olefin and a cyclone (3) located in the recycle gas line for the reduction and precipitation of the solid particles entrained in the recycle gas from the reactor, with the cyclone comprising an upper section (3a) which has an essentially vertical central axis, whose wall extends along a rotationally symmetric body and which is provided with a cyclone inlet (4) arranged eccentrically relative to the central axis, a middle section (3b) which adjoins the upper section (3a) and whose wall extends along a rotationally symmetric body which tapers in a downward direction, a lower section (3c) for discharging the solid particles precipitated from the recycle gas which adjoins the middle section (3b) and whose wall extends along a rotationally symmetric body and a tube (5) extending essentially axially symmetrically down into the upper section and, if appropriate, the middle section for discharging the recycle gas which has been freed of the particles. According to the invention the ratio Hi of the distance hi from the lower end of the tube (5) extending downward into the cyclone to the intersection (6) of an imaginary extension of the wall of the downward-extending tube (5) with the wall of the middle section (3b) to the diameter di of the downward-extending tube (5) is from 3 to 8, in particular from 4 to 7.

    摘要翻译： 用于烯烃聚合的装置，特别是乙烯，包括气相流化床反应器（1），连接到反应器的再循环气体管线（2），用于排出和再循环包含未聚合烯烃的循环气流和 旋风分离器（3）位于循环气体管线中，用于还原和沉淀夹带在来自反应器的再循环气体中的固体颗粒，其中旋风分离器包括具有基本垂直的中心轴线的上部分（3a），其上壁沿着 旋转对称体，并且设置有相对于中心轴偏心布置的旋风入口（4），邻接上部（3a）的中间部分（3b），并且其壁沿着旋转对称的体 用于排出邻近中间部分（3b）的循环气体沉淀的固体颗粒的下部（3c），并且其壁沿旋转方向延伸 对称体和管（5），其基本上轴向对称地延伸到上部，并且如果适当的话，中间部分用于排出已经没有颗粒的循环气体。 根据本发明，从管（5）的下端向下延伸到旋风分离器中的距离hi的距离hi与向下延伸的管（5）的壁的假想延伸部的交点（6） 中间部分（3b）的壁向下延伸管（5）的直径di为3至8，特别是4至7。