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公开(公告)号：US20220177616A1
公开(公告)日：2022-06-09
申请号：US17599027
申请日：2020-04-06
Applicant: Borealis AG
Inventor： Gunter Weickert , Vasileios Kanellopoulos , Eric-Jan Prinsen , Pablo Ivan Aguayo Arellano , Markku Vahteri , Juha Salminen , Jari-Jussi Ruskeeniemi , Ravindra Tupe , Erno Elovainio , Klaus Nyfors
Abstract: 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 (EJG) input in the reactor by the jet stream is between 1.5 and 50 times higher than the kinetic energy (EFG) input in the reactor by the fluidization gas stream (FG).
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2.发明授权公开(公告)号：US11179690B2
公开(公告)日：2021-11-23
申请号：US16499361
申请日：2018-05-30
Applicant: Borealis AG
Inventor： Klaus Nyfors , Erno Elovainio , Vasileios Kanellopoulos , Gunter Weickert , Eric-Jan Prinsen
Abstract: 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%.
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公开(公告)号：US10702842B2
公开(公告)日：2020-07-07
申请号：US15776848
申请日：2016-12-21
Applicant: Borealis AG
Inventor： Vasileios Kanellopoulos , Klaus Nyfors , Gunter Weickert , Eric-Jan Prinsen
IPC: B01J8/24 , B01J8/18 , C08F110/02 , C08J11/04 , C08F6/00 , C08J11/02 , C08F2/34 , B01J8/00 , C08F2/01
Abstract: 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.
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公开(公告)号：US09790290B2
公开(公告)日：2017-10-17
申请号：US15110669
申请日：2015-02-27
Applicant: BOREALIS AG
Inventor： Vasileios Kanellopoulos , Apostolos Krallis , Mohammad Al-Haj Ali , Ravindra Tupe
IPC: C08F2/00 , C08F210/00 , C08F2/34 , C08F2/01
CPC classification number: C08F2/34 , C08F2/01 , C08F110/02
Abstract: An olefin polymerization process comprising polymerizing olefins in gas phase in a fluidized bed in the presence of an olefin polymerization catalyst in a polymerization reactor having a vertical body; a generally conical downwards tapering bottom zone; a generally cylindrical middle zone having a height to diameter ratio L/D of at least 4, above and connected to said bottom zone; and a generally conical upwards tapering top zone above and connected to said middle zone wherein (i) fluidization gas is introduced to the bottom zone of the reactor from where it passes upwards through the reactor; (ii) the fluidization gas is withdrawn from the top zone of the reactor, filtered, compressed, cooled and returned into the bottom zone of the reactor; (iii) a fluidized bed is formed within the reactor where the growing polymer particles are suspended in the upwards rising gas stream; and (iv) there is no fluidization grid in the reactor; characterized in that the gas velocity is maintained in the reactor such that NBr is within the range of from 2.5 to 7.
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公开(公告)号：US09539556B2
公开(公告)日：2017-01-10
申请号：US15033010
申请日：2015-02-27
Applicant: BOREALIS AG
Inventor： Mohammad Al-Haj Ali , Apostolos Krallis , Vasileios Kanellopoulos
CPC classification number: B01J8/24 , B01J8/0055 , B01J8/388 , B01J2208/00176 , B01J2208/00796 , B01J2219/1946 , C08F10/00 , C08F10/02 , C08F2500/12 , C08F2500/18 , C08F2/01 , C08F2/34
Abstract: The present invention is directed to a process for polymerizing olefins in gas phase in a fluidized bed reactor having a vertical body, a generally conical downwards tapering bottom zone, a generally cylindrical middle zone above the bottom zone, and a generally conical upwards tapering top zone above the middle zone. The fluidization gas is withdrawn from the top zone of the reactor, compressed and cooled so that a part of the fluidization gas condenses and then introduced to the bottom zone of the reactor. The bed is thus cooled upon evaporation of the liquid. There is no fluidization grid in the reactor.
Abstract translation: 本发明涉及一种用于在流化床反应器中气相聚合烯烃的方法，该方法具有垂直体，大致圆锥形的向下锥形底部区域，在底部区域上方的大致圆柱形的中间区域，以及大致圆锥形的向上锥形顶部区域 在中区以上。 流化气体从反应器的顶部区域排出，被压缩和冷却，使得一部分流化气体冷凝，然后被引入反应器的底部区域。 因此，床在液体蒸发时被冷却。 反应器中没有流化栅。
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Patent Agency Ranking
公开(公告)号：US12018102B2
公开(公告)日：2024-06-25
申请号：US17051204
申请日：2019-05-29
Applicant: BOREALIS AG
Inventor： Apostolos Krallis , Vasileios Kanellopoulos , Erno Elovainio , Klaus Nyfors
CPC classification number: C08F2/34 , B01J8/0055 , B01J8/08 , B01J8/1827 , B01J8/1872 , B01J8/24 , C08F10/02 , C08F210/16 , C08F210/16 , C08F210/08 , C08F2500/24 , C08F110/02 , C08F2/001 , C08F110/02 , C08F4/6492
Abstract: 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 (TPP) does not exceed 120% of the operating temperature set point (TS) of the polymerization reactor, wherein TPP and TS are both given in ° C., and the use of said process for polymerizing an olefin homo- or copolymer having a narrow particle size distribution.
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公开(公告)号：US20210024669A1
公开(公告)日：2021-01-28
申请号：US16959348
申请日：2019-01-15
Applicant: BOREALIS AG
Inventor： Mohammad Al-Haj Ali , Vasileios Kanellopoulos , Michiel Bergstra
IPC: C08F210/16 , B29B9/06 , B29B9/16
Abstract: Process for reducing the volatile organic compound content of plastomer having a density of equal to or lower than 883 kg/m3 and—a MFR2 of 100.0 g/l 0 min or lower (ISO 1133 at 2.16 kg load and 190° C.); to below 65 ppm(VOC, VDA277), the process comprising the steps of a) providing raw plastomer in granular form, the raw plastomer having a density of equal to or lower than 883 kg/m3; and a MFR2 of 100.0 g/10 min or lower (ISO 1133 at 2.16 kg load and 190° C.); and a volatile organic compound content (VOC, VDA277) of above 150 ppm, and the granules having an average D50 diameter of 2.5 to 4.5 mm b) subjecting said granular raw plastomer to at least one intensive hydrodynamic regime at a minimum temperature of at least 20° C. and a maximum temperature of 4° C. below the Vicat temperature (10 N, ISO 306) of the granular raw plastomer or 35° C., whatever value is lower, with the temperature measured at the gas inlet to the fast-fluidization regime, c) recovering the granular plastomer.
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公开(公告)号：US10358507B2
公开(公告)日：2019-07-23
申请号：US15562323
申请日：2016-03-24
Applicant: BOREALIS AG
Inventor： Mohammad Al-Haj Ali , Vasileios Kanellopoulos , Apostolos Krallis , Henry Sleijster , Samuli Zitting
Abstract: The present invention is directed to a process for separating hydrocarbons from a solution comprising a polymer. The process comprises the steps of: (A) withdrawing a solution stream comprising the polymer from a first vessel; (B) passing the solution stream into a flash vessel; (C) spraying the solution stream into droplets in the first flash vessel thereby establishing a stream of droplets within the flash vessel. The solution forms a downwards falling film within the flash vessel.
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公开(公告)号：US20180369775A1
公开(公告)日：2018-12-27
申请号：US15776848
申请日：2016-12-21
Applicant: Borealis AG
Inventor： Vasileios Kanellopoulos , Klaus Nyfors , Gunter Weickert , Eric-Jan Prinsen
IPC: B01J8/18 , B01J8/00 , C08F110/02
Abstract: 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.
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公开(公告)号：US20160354747A1
公开(公告)日：2016-12-08
申请号：US15033010
申请日：2015-02-27
Applicant: BOREALIS AG
Inventor： Mohammad Al-Haj Ali , Apostolos Krallis , Vasileios Kanellopoulos
CPC classification number: B01J8/24 , B01J8/0055 , B01J8/388 , B01J2208/00176 , B01J2208/00796 , B01J2219/1946 , C08F10/00 , C08F10/02 , C08F2500/12 , C08F2500/18 , C08F2/01 , C08F2/34
Abstract: The present invention is directed to a process for polymerizing olefins in gas phase in a fluidized bed reactor having a vertical body, a generally conical downwards tapering bottom zone, a generally cylindrical middle zone above the bottom zone, and a generally conical upwards tapering top zone above the middle zone. The fluidization gas is withdrawn from the top zone of the reactor, compressed and cooled so that a part of the fluidization gas condenses and then introduced to the bottom zone of the reactor. The bed is thus cooled upon evaporation of the liquid. There is no fluidization grid in the reactor.
Abstract translation: 本发明涉及一种用于在流化床反应器中气相聚合烯烃的方法，该方法具有垂直体，大致圆锥形的向下锥形底部区域，在底部区域上方的大致圆柱形的中间区域，以及大致圆锥形的向上锥形顶部区域 在中区以上。 流化气体从反应器的顶部区域排出，被压缩和冷却，使得一部分流化气体冷凝，然后被引入反应器的底部区域。 因此，床在液体蒸发时被冷却。 反应器中没有流化栅。
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