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    • 2. 发明申请
    • METHOD FOR COOLING A GAS-PHASE REACTOR FOR THE POLYMERIZATION OF OLEFINS
    • 用于冷却气相反应器的方法用于烯烃的聚合
    • WO2013186299A1
    • 2013-12-19
    • PCT/EP2013/062236
    • 2013-06-13
    • BASELL POLYOLEFINE GMBH
    • STRECKER, HolgerHECKER, ManfredKARER, RainerHAMANN, AxelDE LANGE, Paulus
    • B01J8/18C08F10/00G05D7/06
    • B01J8/1836B01J8/1809B01J2208/00256C08F10/02C08F110/02C08F210/16G05D7/0652G05D23/1931C08F2/34
    • A method for controlling the temperature in a polymerization reactor equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat- exchanger, which is cooled by a cooling medium, which is conveyed in a cooling system through the heat-exchanger, and feeding the reactor gas back to the reactor by adjusting the temperature of the cooling medium entering the heat exchanger, wherein the temperature of the cooling medium entering the heat exchanger is controlled by adjusting the flow rate of the cooling medium in a part of the cooling system by a flow control system comprising two continuously operating flow control devices of different size, which are connected in parallel, a process for polymerizing olefins comprising feeding at least one olefin and at least one polymerization catalyst to a polymerization reactor equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading it through a heat-exchanger for cooling and feeding it back to the reactor, polymerizing the olefins in the presence of the polymerization catalyst and withdrawing the obtained polyolefin from the polymerization reactor, wherein the temperature in the polymerization reactor is controlled by such a method, and a process for controlling the flow rate of a fluid medium by a flow control system comprising two continuously operating flow control devices of different size, which are connected in parallel, wherein the flow control system is controlled by a controller combination comprising a controller controlling the smaller flow control device and a controller controlling the larger flow control device, in which the output of the controller controlling the smaller flow control device is not only fed to the smaller flow control device but also twice to the controller controlling the larger flow control device, once directly as actual value of the controller controlling the larger flow control device and once, after having passed a limiting device, which limits a signal to a centered range, as setpoint of the controller controlling the larger flow control device.
    • 一种用于控制聚合反应器中的温度的方法,该聚合反应器配备有用于从反应器中排出反应器气体的循环气体管线,引导反应器气体通过由冷却介质冷却的热交换器,冷却介质在冷却系统中通过 热交换器,并且通过调节进入热交换器的冷却介质的温度将反应器气体反馈回反应器,其中进入热交换器的冷却介质的温度通过调节冷却介质的流量来控制 通过流量控制系统的一部分冷却系统,该流量控制系统包括两个并联连接的不同尺寸的连续操作的流量控制装置,用于聚合烯烃的方法,包括将至少一种烯烃和至少一种聚合催化剂进料到装备有聚合反应器 具有用于从反应器中排出反应器气体的循环气体管线,使其通过用于冷却的热交换器 并将其送回反应器,在聚合催化剂存在下使烯烃聚合并从聚合反应器中取出所得的聚烯烃,其中通过这种方法控制聚合反应器中的温度,以及控制流速的方法 流体介质由包括两个并联连接的不同尺寸的连续操作的流量控制装置的流量控制系统组成,其中流量控制系统由控制器组合控制,该控制器组合包括控制较小流量控制装置的控制器和控制器 较大的流量控制装置,其中控制较小流量控制装置的控制器的输出不仅被馈送到较小的流量控制装置,而且还控制着控制较大流量控制装置的控制器的两倍,一次直接作为控制器的实际值 控制较大的流量控制装置,并经过一次 限制装置将信号限制在居中范围内,作为控制较大流量控制装置的控制器的设定点。
    • 7. 发明申请
    • APPARATUS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS, IN PARTICULAR ETHYLENE
    • 用于气相聚合的装置,特别是乙烯
    • WO2006050919A1
    • 2006-05-18
    • PCT/EP2005/011956
    • 2005-11-09
    • BASELL POLYOLEFINE GMBHHERRMANN, EberhardSPERBER, AxelHECKER, ManfredKARER, RainerBERHALTER, KlausDE LANGE, PaulusHALPAP, JörgAHMADZADE-YOUSSEFI, Cyrus
    • HERRMANN, EberhardSPERBER, AxelHECKER, ManfredKARER, RainerBERHALTER, KlausDE LANGE, PaulusHALPAP, JörgAHMADZADE-YOUSSEFI, Cyrus
    • C08F10/00B01J8/00C08F2/34
    • B01J8/1872B01J8/0055B01J8/24B01J2208/00256B01J2208/00274B04C5/081C08F6/02C08F10/00C08F10/02C08F110/02C08L23/04C08F2/34
    • 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 H; of the distance h; 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 downward­extending tube (5) with the wall of the middle section (3b) to the diameter d; of the downward­extending tube (5) is from 3 to 8, in particular from 4 to 7.
    • 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,比率H; 的距离h; 从管(5)的下端向下延伸到旋风分离器中,向下延伸管(5)的壁的假想延伸部与中间部分(3b)的壁的交叉点(6)延伸到直径d; 的下延伸管(5)为3至8,特别是4至7。
    • 8. 发明申请
    • APPARATUS AND PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    • 油相气相聚合的装置和方法
    • WO2006050907A1
    • 2006-05-18
    • PCT/EP2005/011935
    • 2005-11-08
    • BASELL POLYOLEFINE GMBHHERRMANN, EberhardHECKER, ManfredKARER, RainerBERHALTER, KlausDE LANGE, PaulusHALPAP, JörgAHMADZADE-YOUSSEFI, Cyrus
    • HERRMANN, EberhardHECKER, ManfredKARER, RainerBERHALTER, KlausDE LANGE, PaulusHALPAP, JörgAHMADZADE-YOUSSEFI, Cyrus
    • C08F10/00B01J19/18
    • B01J8/003B01J8/006B01J8/1872B01J2208/00256B01J2208/00274B01J2208/00761C08F10/00C08F110/02C08F2/34
    • 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.
    • 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),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),用于释放与减压容器(2)连接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 )和过滤器区域(4b),其中过滤介质定位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,使得沿着过滤器的流动 中等(9)从上方下降。