公开(公告)号：EP3184167A1

公开(公告)日：2017-06-28

申请号：EP15201811.5

申请日：2015-12-22

申请人： Borealis AG

发明人： Kanellopoulos, Vasileios ,  Nyfors, Klaus ,  Weickert, Gunter ,  Prinsen, Eric-Jan

IPC分类号： B01J8/24 ,  C08F110/02 ,  C08F6/00 ,  C08J11/02 ,  C08J11/04

CPC分类号： C08F6/005 ,  B01J8/18 ,  B01J8/24 ,  B01J8/38 ,  C08F110/02 ,  C08J11/02 ,  C08J11/04 ,  C08L23/06 ,  C08F2500/07 ,  C08F2/34 ,  C08F2/01 ,  C08F10/00

摘要： The present invention deals with a process of polymerising at least one olefin in a fluidised bed in a fluidised bed polymerisation reactor comprising a top zone, a middle zone in direct contact and below, a bottom zone in direct contact with and below the middle zone and wherein the reactor does not comprise a fluidisation grid. The process comprises passing a stream comprising the fluidisation gas and polymer particles into a separation step and withdrawing a stream comprising the polymer particles from the separation step and returning it to the polymerisation reactor. The process comprises adding a support gas stream to the stream comprising the polymer particles downstream of the separation step.

摘要翻译： 本发明涉及一种在流化床聚合反应器中的流化床中聚合至少一种烯烃的方法，所述流化床聚合反应器包括顶部区，直接接触和在其下方的中间区，与中间区直接接触和在中间区下方的底部区和 其中该反应器不包含流化格栅。 该方法包括将包含流化气体和聚合物颗粒的物流通入分离步骤，并从分离步骤中取出包含聚合物颗粒的物流并将其返回至聚合反应器。 该方法包括向分离步骤下游的包含聚合物颗粒的物流中加入载气流。

公开(公告)号：EP3103818A1

公开(公告)日：2016-12-14

申请号：EP15171820.2

申请日：2015-06-12

申请人： Borealis AG

发明人： Kanellopoulos, Vasileios ,  Nyfors, Klaus ,  Aguayo Arellano, Pablo Ivan ,  Weickert, Gunter ,  Prinsen, Eric-Jan

IPC分类号： C08F2/01 ,  B01J8/08 ,  B01J8/18 ,  B01J8/24 ,  C08F2/34

CPC分类号： C08F10/02 ,  B01J8/005 ,  B01J8/0055 ,  B01J8/006 ,  B01J8/1818 ,  B01J8/1827 ,  B01J8/1836 ,  B01J8/1863 ,  B01J8/1872 ,  B01J2208/00176 ,  B01J2208/00893 ,  B01J2208/00991 ,  C08F2/01 ,  C08F2/34 ,  C08F2500/07

摘要： The present invention deals with an olefin polymerisation process. At least one olefin is polymerised in gas phase in a fluidised bed in the presence of an olefin polymerisation catalyst in a polymerisation reactor having a vertical body; a generally conical downwards tapering bottom zone; a generally cylindrical middle zone above and connected to said bottom zone; and a generally conical upwards tapering top zone above and connected to said middle zone. Fluidisation gas is introduced to the bottom zone of the reactor from where it passes upwards through the reactor, and withdrawn from the top zone of the reactor. The gas is then compressed, cooled and returned into the bottom zone of the reactor. A fluidised bed is thus formed within the reactor where the growing polymer particles are suspended in the upwards rising gas stream wherein the superficial velocity of the fluidisation gas is less than the transport velocity of the particles. There is no fluidisation grid in the reactor. The fluidisation gas is passed from an inlet chamber into the bottom zone and the gas flows from the upper part of the inlet chamber to the lower part thereof and the gas flows from the lower part of the inlet chamber to the bottom zone.

摘要翻译： 本发明涉及烯烃聚合方法。 在具有垂直体的聚合反应器中的烯烃聚合催化剂存在下，在流化床中至少一种烯烃在气相中聚合; 一个大致圆锥形的向下锥形底部区域; 在所述底部区域上方并连接到所述底部区域的大致圆柱形的中间区域; 以及在所述中间区域上方并连接到所述中间区域的大致锥形的向上锥形顶部区域 流化气体被引入到反应器的底部区域，在那里它向上通过反应器，并从反应器的顶部区域排出。 然后将气体压缩，冷却并返回到反应器的底部区域。 因此，在反应器内形成流化床，其中生长的聚合物颗粒悬浮在向上升的气流中，其中流化气体的表观速度小于颗粒的输送速度。 反应器中没有流化栅。 流化气体从入口室进入底部区域，并且气体从入口室的上部流到其下部，并且气体从入口室的下部流动到底部区域。

公开(公告)号：EP2446960A1

公开(公告)日：2012-05-02

申请号：EP10075723.6

申请日：2010-10-29

申请人： Borealis AG

发明人： Weickert, Gunter ,  Bergstra, Michiel ,  Eriksson, Erik

IPC分类号： B01J8/00 ,  B01J8/10 ,  B01J8/38 ,  C08F10/00 ,  C08F2/34

CPC分类号： B01J8/0045 ,  B01J8/12 ,  B01J8/1827 ,  B01J8/26 ,  B01J8/386 ,  B01J8/388 ,  B01J2208/00752 ,  B01J2208/00761 ,  B01J2208/00876 ,  B01J2219/00038 ,  C08F10/00 ,  C08F110/02 ,  C08F2500/18 ,  C08F2/01

摘要： The reactor system (40) comprises a first reactor unit (47) with an outlet (50) for an product stream comprising a solid phase product in particulate form, and a fluidized bed reactor unit (41) provided with a particle inlet (64) coupled to the outlet of the first reactor unit (47) through a transportation pipe (60), which comprises mechanical displacement means (62) embodied as a screw and driven to rotate at a predefined rotation speed, and a densification zone (65) defined between said mechanical displacement means (62) and said particle inlet (64), in which densification zone (65), in operation, a density of the product stream is increased, said densification zone (65) defining a flow direction into said fluidized bed reactor unit (41). An unobstructed space (A) is defined in said fluidized bed reactor unit (41), the space extending from said particle inlet (64) over a distance of at least 0.4·D in said flow direction where D is the internal diameter of said fluidized bed reactor unit (41) at the level of said particle inlet (64).

摘要翻译： 反应器系统（40）包括具有用于产物流的出口（50）的第一反应器单元（47），其包含颗粒形式的固相产物和设置有颗粒入口（64）的流化床反应器单元（41） 通过输送管道（60）耦合到第一反应器单元（47）的出口，输送管道（60）包括被实施为螺杆并被驱动以预定转速旋转的机械位移装置（62）和定义的致密化区 在所述机械移动装置（62）和所述颗粒入口（64）之间，其中致密区（65）在操作中产品流的密度增加，所述致密化区（65）限定到所述流化床 反应器单元（41）。 在所述流化床反应器单元（41）中限定了无阻塞空间（A），所述流化床反应器单元（41）中的空间从所述颗粒入口（64）延伸到所述流动方向上至少0.4D的距离，其中D是所述流化床 在所述颗粒入口（64）的水平面上的床反应器单元（41）。

公开(公告)号：EP3103818B1

公开(公告)日：2018-06-06

申请号：EP15171820.2

申请日：2015-06-12

申请人： Borealis AG

发明人： Kanellopoulos, Vasileios ,  Nyfors, Klaus ,  Aguayo Arellano, Pablo Ivan ,  Weickert, Gunter ,  Prinsen, Eric-Jan

IPC分类号： C08F2/01 ,  B01J8/08 ,  B01J8/18 ,  B01J8/24 ,  C08F2/34

CPC分类号： C08F10/02 ,  B01J8/005 ,  B01J8/0055 ,  B01J8/006 ,  B01J8/1818 ,  B01J8/1827 ,  B01J8/1836 ,  B01J8/1863 ,  B01J8/1872 ,  B01J2208/00176 ,  B01J2208/00893 ,  B01J2208/00991 ,  C08F2/01 ,  C08F2/34 ,  C08F2500/07

摘要： The present invention deals with an olefin polymerisation process. At least one olefin is polymerised in gas phase in a fluidised bed in the presence of an olefin polymerisation catalyst in a polymerisation reactor having a vertical body; a generally conical downwards tapering bottom zone; a generally cylindrical middle zone above and connected to said bottom zone; and a generally conical upwards tapering top zone above and connected to said middle zone. Fluidisation gas is introduced to the bottom zone of the reactor from where it passes upwards through the reactor, and withdrawn from the top zone of the reactor. The gas is then compressed, cooled and returned into the bottom zone of the reactor. A fluidised bed is thus formed within the reactor where the growing polymer particles are suspended in the upwards rising gas stream wherein the superficial velocity of the fluidisation gas is less than the transport velocity of the particles. There is no fluidisation grid in the reactor. The fluidisation gas is passed from an inlet chamber into the bottom zone and the gas flows from the upper part of the inlet chamber to the lower part thereof and the gas flows from the lower part of the inlet chamber to the bottom zone.

公开(公告)号：EP3184166A1

公开(公告)日：2017-06-28

申请号：EP15201812.3

申请日：2015-12-22

申请人： Borealis AG

发明人： Al-haj Ali, Mohammad ,  Kanellopoulos, Vasileios ,  Krallis, Apostolos ,  Nyfors, Klaus ,  Aguayo Arellano, Pablo Ivan ,  Weickert, Gunter ,  Prinsen, Eric-Jan

IPC分类号： B01J4/00

CPC分类号： B01J8/0035 ,  B01J2208/00761 ,  B01J2208/00769

摘要： The present invention relates to a process and apparatus for withdrawing polymer agglomerates from a fluidised bed polymerisation reactor, the polymerisation reactor comprising a bottom zone having a generally conical shape and no fluidisation grid. The agglomerates are withdrawn by using an agglomerate trap below the bottom zone. A value of a process variable indicative of the content of agglomerates in the agglomerate trap is measured and the opening time of the valves transferring polymer to and from the agglomerate trap is adjusted based on the measured value.

摘要翻译： 本发明涉及用于从流化床聚合反应器中回收聚合物附聚物的方法和设备，该聚合反应器包括具有大体圆锥形状并且不具有流化网格的底部区域。 通过在底部区域下方使用团聚物收集器来收集团聚物。 测量指示附聚物收集器中附聚物含量的过程变量的值，并且基于测量值来调整将聚合物转移到聚结物收集器和从聚集物收集器转移聚合物的阀的打开时间。