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1. 发明申请

WO2019238428A1 PROCESS FOR POLYMERIZING OLEFIN IN A GAS PHASE REACTOR WITH IMPROVED THERMAL HOMOGENEITY 审中-公开
公开(公告)号：WO2019238428A1
公开(公告)日：2019-12-19
申请号：PCT/EP2019/064035
申请日：2019-05-29
申请人： BOREALIS AG
发明人： KRALLIS, Apostolos , KANELLOPOULOS, Vasileios , ELOVAINIO, Erno , NYFORS, Klaus
IPC分类号： C08F10/02 , B01J8/18 , B01J8/08
摘要： The present invention relates to a process for polymerizing at least one olefin in gas phase in a fluidized bed in a polymerization reactor having a top zone of a generally conical shape as such that the equivalent cross-sectional diameter is monotonically decreasing with respect to the flow direction of the fluidization gas, a middle zone in direct contact with and below said top zone of a generally cylindrical shape and a bottom zone in direct contact and below said middle zone and of a generally conical shape as such that the equivalent cross-sectional diameter is monotonically increasing with respect to the flow direction of the fluidization gas, comprising the steps of: a) introducing a first stream of fluidization gas into the bottom zone; b) polymerizing at least one olefin in the presence of a polymerization catalyst in the fluidized bed formed by particles of a polymer of the at least one olefin suspended in an upwards flowing stream of the fluidization gas in the middle zone; c) withdrawing a second stream comprising the fluidization gas and optionally particles of a polymer of the at least one olefin from the top zone; characterized in that the temperature of the particles of the polymer of the at least one olefin in the fluidized bed (T PP ) does not exceed 120% of the operating temperature set point (T S ) of the polymerization reactor, wherein T PP and T S are both given in °C, and the use of said process for polymerizing an olefin homo- or copolymer having a narrow particle size distribution.

2. 发明申请

WO2022117358A1 PROCESS FOR THE PRODUCTION OF POLYOLEFIN COMPOSITIONS IN A MULTISTAGE PROCESS 审中-公开
公开(公告)号：WO2022117358A1
公开(公告)日：2022-06-09
申请号：PCT/EP2021/082225
申请日：2021-11-18
申请人： BOREALIS AG
发明人： DAS, Shital , ALASTALO, Kauno , KUPAREVA, Antonia , BRUCKBAUER, Stefan , KORTEJÄRVI, Henrik , ELOVAINIO, Erno
IPC分类号： C08F2/00 , C08F2/01 , C08F210/06 , B01J8/24 , B01J19/24
摘要： The present invention relates to a process and apparatus for producing alpha-olefin polymers in the presence of a polymerization catalyst in a continuously operated multistage polymerisation sequence, the process comprising the steps of (a) polymerizing an alpha-olefin monomer and optionally one or more alpha-olefin co-monomers in a slurry reactor in the presence of a hydrocarbon diluent or liquid monomer in a slurry phase to obtain an alpha-olefin polymer, the slurry phase having a first concentration of solids, (b) continuously withdrawing from the slurry reactor a polymer slurry containing polymer and a fluid phase, (c) concentrating at least a part of the polymer slurry by removing a part of the fluid phase to provide a 1st product stream comprising a concentrated slurry having a second solids concentration, which is higher than the first solids concentration, and a 2nd product stream mainly comprising the fluid phase, (d) polymerizing said 1st product stream in the presence of alpha-olefin monomers and optionally one or more alpha-olefin co-monomers in a first gas phase reactor (GPR1) arranged downstream of said slurry reactor to obtain a 1st alpha-olefin product stream, (e) polymerizing a 3rd product stream, withdrawn from said slurry reactor, in the presence of alpha-olefin monomers and optionally one or more alpha-olefin co-monomers in a second gas phase reactor (GPR2) to obtain a 2nd alpha-olefin product stream.

3. 发明申请

WO2019096557A1 METHOD FOR IMPROVING THE COOLING CAPACITY OF A GAS SOLIDS OLEFIN POLYMERIZATION REACTOR 审中-公开
公开(公告)号：WO2019096557A1
公开(公告)日：2019-05-23
申请号：PCT/EP2018/079242
申请日：2018-10-25
申请人： BOREALIS AG
发明人： WEICKERT, Günter , PRINSEN, Eric-Jan , NYFORS, Klaus , ELOVAINIO, Erno , KANELLOPOULOS, Vasileios
IPC分类号： C08F2/01 , C08F10/00
摘要： The present invention relates to a method for improving the cooling capacity of a gas solids olefin polymerization reactor by splitting the fluidization gas and returning part of the fluidization gas to the reactor into the bottom zone of the reactor and another part of the fluidization gas directly into the dense phase formed by particles of a polymer of the at least one olefin suspended in an upwards flowing stream of the fluidization gas in the middle zone of the reactor.

4. 发明申请

WO2017191054A1 A PROCESS FOR FEEDING A POLYMERISATION CATALYST 审中-公开
标题翻译：供给聚合催化剂的方法
公开(公告)号：WO2017191054A1
公开(公告)日：2017-11-09
申请号：PCT/EP2017/060216
申请日：2017-04-28
申请人： BOREALIS AG
发明人： LESKINEN, Pauli , ELOVAINIO, Erno , NIKKILÄ, Katri , PARJANEN, Jukka-Pekka , AHO, Jani
IPC分类号： B01J8/00 , B01J8/22 , C08F10/00
摘要： The present invention is directed to a process for feeding a polymerisation catalyst into a polymerisation reactor (7), comprising the steps of: (i) maintaining a catalyst slurry comprising a diluent and a solid catalyst component in a catalyst feed vessel (4); (ii) continuously withdrawing a stream of the catalyst slurry from the catalyst feed vessel (4); and (iii) introducing the withdrawn portion of the catalyst slurry into the polymerisation reactor (7), wherein the catalyst slurry is transferred by using a valveless piston pump (5) from the catalyst feed vessel (4) into the polymerisation reactor (7); the diluent has a dynamic viscosity of from 0.01 to 20 mPas at the conditions within the catalyst feed vessel (4), and wherein the catalyst slurry is transferred along a substantially vertical path downwards from the catalyst feed vessel (4) to the reactor (7).
摘要翻译：本发明涉及将聚合催化剂加入聚合反应器（7）中的方法，该方法包括以下步骤：（i）将包含稀释剂和固体催化剂组分的催化剂浆料保持在一个催化剂进料容器（4）; （ii）从催化剂进料容器（4）中连续排出催化剂浆料流; 和（iii）将取出的催化剂淤浆部分引入聚合反应器（7）中，其中通过使用无阀活塞泵（5）将催化剂淤浆从催化剂进料容器（4）转移到聚合反应器（7）中， ; 稀释剂在催化剂进料容器（4）内的条件下具有0.01至20mPas的动态粘度，并且其中催化剂浆料沿着基本垂直的路径从催化剂进料容器（4）向下转移至反应器（7））。

5. 发明申请

WO2022111966A1 CATALYST FEED SYSTEM 审中-公开
公开(公告)号：WO2022111966A1
公开(公告)日：2022-06-02
申请号：PCT/EP2021/080598
申请日：2021-11-04
申请人： BOREALIS AG
发明人： NYFORS, Klaus , KIVELÄ, Jouni , SATTAR, Mubashar , ZITTING, Samuli , ELOVAINIO, Erno , LYLYKANGAS, Mikko , LINDHOLM, Jan , COX, Danny
IPC分类号： B01J8/00
摘要： The present invention relates to a process for feeding a polymerization catalyst into a polymerization reactor, said process comprising the steps of: (i) forming a catalyst slurry comprising oil and a solid catalyst component in a first catalyst preparation vessel; (ii) transferring the catalyst slurry from the first catalyst preparation vessel to a first catalyst feed vessel; (iii) maintaining the catalyst slurry in the first catalyst feed vessel in a homogeneous state; (iv) withdrawing a portion of the catalyst slurry from the first catalyst feed vessel, preferably continuously withdrawing the catalyst slurry from the first catalyst feed vessel, and introducing the withdrawn portion of the catalyst slurry into a polymerization reactor; wherein the oil has a dynamic viscosity of from 25 to 1500 mPa*s at the conditions within the first catalyst preparation vessel and the first catalyst feed vessel, wherein the catalyst slurry is transferred along a substantially vertical path downwards from the first catalyst feed vessel to the reactor.

6. 发明申请

WO2020244834A1 PROCESS AND REACTOR ASSEMBLY FOR THE ENHANCEMENT OF HYDRODYNAMICS IN A GAS-SOLIDS FLUIDIZED BED REACTOR 审中-公开
公开(公告)号：WO2020244834A1
公开(公告)日：2020-12-10
申请号：PCT/EP2020/059811
申请日：2020-04-06
申请人： BOREALIS AG
发明人： WEICKERT, Gunter , KANELLOPOULOS, Vasileios , PRINSEN, Eric-Jan , AGUAYO ARELLANO, Pablo Ivan , VAHTERI, Markku , SALMINEN, Juha , RUSKEENIEMI, Jari-Jussi , TUPE, Ravindra , ELOVAINIO, Erno , NYFORS, Klaus
IPC分类号： B01J19/18 , B01J8/24 , B01J8/38 , B01J8/44
摘要： A process for polymerizing olefin monomer(s) in a gas-solids olefin polymerization reactor comprising a top zone; a middle zone, which comprises a top end in direct contact with said top zone and which is located below said top zone, the middle zone having a generally cylindrical shape; and a bottom zone, which is in direct contact with a bottom end of the middle zone and which is located below the middle zone; comprising the following steps: introducing a fluidization gas stream into the bottom zone; polymerizing olefin monomer(s) in the presence of a polymerization catalyst in a dense phase formed by particles of a polymer of the olefin monomer(s) suspended in an upwards flowing stream of the fluidization gas in the middle zone; introducing a jet gas stream through one or more jet gas feeding ports in a jet gas feeding area of the middle zone at the dense phase in the middle zone of the gas-solids olefin polymerization reactor; wherein the kinetic energy (E JG ) input in the reactor by the jet stream is between 1.5 and 50 times higher than the kinetic energy (E FG ) input in the reactor by the fluidization gas stream (FG).

7. 发明申请

WO2018233999A1 PROCESS AND APPARATUS FOR REMOVING POLYMER MATERIAL FROM A GAS-SOLIDS OLEFIN POLYMERIZATION REACTOR 审中-公开
公开(公告)号：WO2018233999A1
公开(公告)日：2018-12-27
申请号：PCT/EP2018/064207
申请日：2018-05-30
申请人： BOREALIS AG
发明人： NYFORS, Klaus , ELOVAINIO, Erno , KANELLOPOULOS, Vasileios , WEICKERT, Gunter , PRINSEN, Eric-Jan
IPC分类号： C08F2/01 , B01J8/18 , B01J8/00 , C08F2/34 , C08F10/00
摘要： The present invention relates to a process for removing polymer material from a gas-solids olefin polymerization reactor wherein the gas-solids olefin polymerization reactor is connected to the top part of an outlet vessel via a feed pipe wherein the powder surface of discharged polymer material and the barrier gas injection point are situated in the outlet vessel as such to fulfill the following criteria: R' = X/Y ≤ 2.0; and R'' = X/D ≥ 1.0; wherein X = Distance between the powder surface and the barrier gas injection point; Y = Distance between the barrier gas injection point and the vessel outlet; and D = Equivalent outlet vessel diameter, an apparatus for continuously removing polymer material comprising a gas-solids olefin polymerization reactor, an outlet vessel and a feed pipe connecting the gas-solids olefin polymerization reactor with the top part of the outlet vessel and the use of said apparatus for polymerizing alpha- olefin homo- or copolymers having alpha-olefin monomer units of from 2 to 12 carbon atoms and for increasing the barrier gas efficiency of the gas-solids olefin reactor to at least 75 %.

8. 发明申请

WO2011066892A1 PROCESS FOR PRODUCING POLYOLEFINS 审中-公开
标题翻译：生产聚烯烃的方法
公开(公告)号：WO2011066892A1
公开(公告)日：2011-06-09
申请号：PCT/EP2010/006703
申请日：2010-11-03
申请人： BOREALIS AG , KOKKO, Tapio , ELOVAINIO, Erno , KIVELÄ, Jouni , NYFORS, Klaus , HAGANE, Kai
发明人： KOKKO, Tapio , ELOVAINIO, Erno , KIVELÄ, Jouni , NYFORS, Klaus , HAGANE, Kai
IPC分类号： C08F6/00 , C08F10/00 , C08F2/34 , C08F2/00 , C08L23/00
CPC分类号： B01J8/1809 , B01J8/007 , B01J8/26 , B01J2208/00256 , B01J2208/00274 , B01J2208/0084 , B01J2219/0004 , C08F6/001 , C08F10/06 , C08F110/06 , C08F210/06 , C08L23/00 , C08F2/001 , C08F2/34 , C08F210/16
摘要： The present invention deals with a process of producing a polymer of at least one olefin in two consecutive reactors in gas phase in the presence of an olefin polymerisation catalyst where an olefin is polymerised in a first polymerization reactor in the presence of an olefin polymerisation catalyst and a first reaction gas mixture to form a fluidized bed comprising an olefin polymer and said first reaction gas mixture. The first reaction gas mixture together with the olefin polymer is continuously or intermittently withdrawn from the first polymerisation reactor and directed into a separation vessel so that a bed of polymer is formed in said separation vessel. A portion of said first reaction gas mixture is withdrawn from said separation vessel and returned into the first polymerization reactor to a point where the pressure is lower than in the separation vessel. The olefin polymer is withdrawn from said separation vessel to form a second product stream and the second product stream is directed into a second polymerization reactor. A second gas may be introduced into the bottom part of the separation vessel to avoid the carry-over of the reactants from the first polymerisation stage into the second polymerisation stage.
摘要翻译：本发明涉及一种在烯烃聚合催化剂存在下，在两相连续反应器中制备至少一种烯烃聚合物的方法，其中烯烃在烯烃聚合催化剂存在下在第一聚合反应器中聚合，第一反应气体混合物以形成包含烯烃聚合物和所述第一反应气体混合物的流化床。将第一反应气体混合物与烯烃聚合物一起连续地或间歇地从第一聚合反应器中取出并引导到分离容器中，使得在所述分离容器中形成聚合物床。将所述第一反应气体混合物的一部分从所述分离容器中取出并返回到第一聚合反应器中至压力低于分离容器的点。从所述分离容器中取出烯烃聚合物以形成第二产物流，将第二产物流引入第二聚合反应器。可以将第二气体引入分离容器的底部，以避免反应物从第一聚合阶段进入第二聚合阶段。

9. 发明申请

WO2020064484A1 A MULTI-STAGE PROCESS FOR PRODUCING A C2 TO C8 OLEFIN POLYMER COMPOSITION 审中-公开
公开(公告)号：WO2020064484A1
公开(公告)日：2020-04-02
申请号：PCT/EP2019/075109
申请日：2019-09-19
申请人： BOREALIS AG
发明人： NYFORS, Klaus , KANELLOPOULOS, Vasileios , ELOVAINIO, Erno , TUPE, Ravindra , SUMERIN, Victor
IPC分类号： C08F10/00 , C08L23/06 , C08F4/651 , C08F4/649
摘要： The present invention relates to a multi-stage process for producing a C 2 to C 8 olefin polymer composition in a process comprising at least two reactors, wherein a pre-polymerized solid Ziegler-Natta catalyst is prepared by carrying out an off-line pre-polymerization of a solid Ziegler-Natta catalyst component with a C 2 to C 4 olefin monomer before feeding to the polymerization process.

10. 发明申请

WO2019086623A1 POLYMERIZATION REACTOR SYSTEM COMPRISING AT LEAST ONE WITHDRAWAL VALVE 审中-公开
公开(公告)号：WO2019086623A1
公开(公告)日：2019-05-09
申请号：PCT/EP2018/080046
申请日：2018-11-02
申请人： BOREALIS AG
发明人： WURNITSCH, Christof , VIJAY, Sameer , ELOVAINIO, Erno
IPC分类号： B01J19/18 , B01J19/24 , B01J4/00 , B01J8/00
CPC分类号： B01J19/1837 , B01J4/001 , B01J4/008 , B01J8/003 , B01J8/004 , B01J19/2435 , B01J2204/005
摘要： Described herein is a polymerization reactor system comprising at least one loop reactor and/or at least one transfer line, and further comprising at least one withdrawal valve, wherein the at least one withdrawal valve is mounted to a wall of a lower horizontal segment of the loop reactor and/or to a wall of the transfer line, at an angle a of more than 0° and equal to or less than 85°, determined from perpendicular to a tangent of the wall at the mounting position in flow direction of a slurry in the loop reactor and/or in the transfer line. The valve piston of the at least one withdrawal valve comprises a valve plate at an end directed to the at least one loop reactor and/or at an end directed to the at least one transfer line, the valve plate being shaped according to an inner wall of the at least one loop reactor and/or according to an inner wall of the at least one transfer line such that the valve piston is flush with the inner wall of the at least one loop reactor and/or with the inner wall of the at least one transfer line in a closed position of the withdrawal valve. By using such a withdrawal valve, a limitation of the effective withdrawal area can be avoided or at least be reduced such that the liquid slurry can efficiently be withdrawn and the risk of plugging is reduced. Further disclosed is a method for producing an olefin polymer in the inventive polymerization reactor system.

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