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    DEVICE AND PROCESS FOR PREPARING A FEED STREAM FOR SOLUTION POLYMERIZATION
    1.
    发明公开
    DEVICE AND PROCESS FOR PREPARING A FEED STREAM FOR SOLUTION POLYMERIZATION 审中-公开

    公开(公告)号：US20230415113A1

    公开(公告)日：2023-12-28

    申请号：US18036742

    申请日：2021-11-10

    Applicant: Borealis AG

    Inventor： Mohammad Al-haj Ali ,  Henry Sleijster ,  Mubashar Sattar ,  Noureddine Ajellal ,  Charlotta Weber

    IPC: B01J4/00 ,  C08F2/01 ,  B01D53/18

    CPC classification number: B01J4/008 ,  C08F2/01 ,  B01D53/18 ,  B01J2204/007

    Abstract: A feeding device for preparing a feed stream for a solution polymerization, comprising a feed vessel, the feed vessel comprising a top zone and a bottom zone; a feed outlet for withdrawing the feed stream, wherein the feed outlet is positioned at the bottom zone; a waste outlet for withdrawing a waste vapour stream, wherein the waste outlet is positioned at the top zone; a first heat exchanger positioned below the top zone; an absorber positioned below the first heat exchanger; a first inlet for introducing a fresh liquid stream into or on top of the absorber, wherein the first inlet is positioned at the absorber; a second inlet for introducing a recycle liquid stream, wherein the second inlet is positioned below the first inlet; and a third inlet for introducing a recycle vapour stream, wherein the third inlet is positioned below the second inlet and above the feed outlet.

    Process for the Polymerization of Olefins in Solution with Controlled Activity of Catalyst in Reactor Outlet Stream
    4.
    发明申请
    Process for the Polymerization of Olefins in Solution with Controlled Activity of Catalyst in Reactor Outlet Stream 有权

    公开(公告)号：US20230067585A1

    公开(公告)日：2023-03-02

    申请号：US17790541

    申请日：2020-12-30

    Applicant: BOREALIS AG

    Inventor： Mohammad Al-haj Ali ,  Noureddine Ajellal ,  Charlotta Weber

    IPC: C08F210/16

    Abstract: The present invention relates to a polymerisation process, comprising: a) supplying a feed containing ethylene and at least one alpha-olefin having 3 to 12 carbon atoms in a hydrocarbon solvent to a polymerisation reactor, b) contacting the feed of step a) in the reactor with a catalyst to form a reaction mixture containing an ethylene-alpha-olefin co-polymer, whereby the average residence time in the reactor is chosen to be between 0.5 and 30 minutes, c) withdrawing the reaction mixture from the polymerisation reactor as a reactor outlet stream which comprises the ethylene-alpha-olefin co-polymer, unreacted monomer, catalyst, and hydrocarbon solvent, and d) separating hydrocarbon solvent, monomer and comonomer from the reactor outlet stream and recycling it back to the polymerisation reactor without further purification steps, wherein in step c) no more than 5 wt. % of catalyst in an active state is leaving the reactor.

    Polymerization Process and Arrangement
    6.
    发明公开
    Polymerization Process and Arrangement 审中-公开

    公开(公告)号：US20240002552A1

    公开(公告)日：2024-01-04

    申请号：US18039835

    申请日：2020-12-08

    Applicant: Borealis AG

    Inventor： Mohammad Al-haj Ali ,  Charlotta Weber ,  Henry Sleijster ,  Noureddine Ajellal ,  Mubashar Sattar

    IPC: C08F2/06 ,  C08F6/12

    CPC classification number: C08F2/06 ,  C08F6/12 ,  C08L23/08

    Abstract: The disclosure relates to a polymerization process, comprising —providing a first hydrocarbon stream comprising first olefin monomer, first comonomer and solvent in a first providing step, wherein solvent is obtained from a solvent source; combining the first hydrocarbon stream with hydrocarbons recycled from at least one downstream process step to a first combined hydrocarbon stream in a first combining step; —polymerizing the first olefin monomer and the first comonomer in the presence of a first polymerization catalyst in a first polymerization step in the solvent to produce a first solution comprising a first polymer of the first olefin monomer and the first comonomer; —withdrawing a first exhaust stream of the first solution in a first withdrawing step; —separating the first exhaust stream to a first primary hydrocarbon stream and a first concentrated solution stream in a first primary separation step; —recycling the first primary hydrocarbon stream to the first combining step in a first primary recycling step; —separating the first concentrated solution stream to a first secondary hydrocarbon stream and a first polymer product stream in a first secondary separation step; —recycling the first secondary hydrocarbon stream to the first combining step in a first secondary recycling step; —providing a second hydrocarbon stream comprising second olefin monomer, second comonomer and solvent in a second providing step, wherein the solvent is obtained from the solvent source; —combining the second hydrocarbon stream with hydrocarbons recycled from at least one downstream process step to a second combined hydrocarbon stream in a second combining step; —polymerizing the second olefin monomer and the second comonomer in the presence of a second polymerization catalyst in a second polymerization step in the solvent to produce a second solution comprising a second polymer of the second olefin monomer and the second comonomer; —withdrawing a second exhaust stream of the second solution in a second withdrawing step; —separating the second exhaust stream to a second primary hydrocarbon stream and a second concentrated solution stream in a second primary separation step; —recycling the second primary hydrocarbon stream to the second combining step in a second primary recycling step; —separating the second concentrated solution stream to a second secondary hydrocarbon stream and a second polymer product stream in a second secondary separation step; and —recycling the second secondary hydrocarbon stream to second combining step in a second secondary recycling step wherein —the first providing step and the second providing step are performed in parallel; —the first combining step and the second combining step are performed in parallel; —the first polymerization step and the second polymerization step are performed in parallel; —the first withdrawing step and the second withdrawing step are performed in parallel; —the first primary separation step and the second primary separation step are performed in parallel; —the first primary recycling step and the second primary recycling step are performed in parallel; —the first secondary separation step and the second secondary separation step are performed in parallel; and —the first secondary recycling step and the second secondary recycling step are performed in parallel. The disclosure relates also to a polymerization arrangement, comprising —a solvent source arranged to provide solvent for a first hydrocarbon stream and a second hydrocarbon stream, the first hydrocarbon stream comprising first olefin monomer, first comonomer and solvent, and the second hydrocarbon stream comprising second olefin monomer, second comonomer and solvent; —a first olefin monomer source arranged to provide first olefin monomer for the first hydrocarbon stream; —a first comonomer source arranged to provide first comonomer for the first hydrocarbon stream; —a first combining means in fluid connection with the solvent source, the first olefin monomer source and the first comonomer source, wherein the first combining means is arranged to combine the first hydrocarbon stream with a stream of recycled hydrocarbons to a first combined hydrocarbon stream; —a first polymerization reactor train in fluid connection with the combining means and arranged to polymerize olefin monomer and comonomer in the presence of a polymerization catalyst in solvent to produce a first solution comprising a first polymer of the olefin monomer and the comonomer; —a first primary separation device in fluid connection with the first polymerization reactor train and arranged to separate a first exhaust stream of the first solution withdrawn from the first polymerization reactor train to a first primary hydrocarbon stream and a first concentrated solution stream; —a first primary recycling means in fluid connection with the first primary separation device and the first combining means for recycling the first primary hydrocarbon stream to the first combining means; —a first secondary separation device in fluid connection with the first primary separation device, wherein the first secondary separation device is arranged to separate the first concentrated solution stream to a first secondary hydrocarbon stream and a first polymer product stream; —a first secondary recycling means in fluid connection with the first secondary separation device and the first combining means for recycling the first secondary hydrocarbon stream to the first combining means; —a second combining means in fluid connection with the solvent source and arranged to combine the second hydrocarbon stream with a stream of recycled hydrocarbons to a second combined hydrocarbon stream; —a second polymerization reactor train in fluid connection with the combining means and arranged to polymerize olefin monomer and comonomer in the presence of a polymerization catalyst in solvent to produce a second solution comprising a second polymer of the olefin monomer and the comonomer; —a second primary separation device in fluid connection with the second polymerization reactor train and arranged to separate a second exhaust stream of the second solution withdrawn from the second polymerization reactor train to a second primary hydrocarbon stream and a second concentrated solution stream; —a second primary recycling means in fluid connection with the second primary separation device and the second combining means for recycling the second primary hydrocarbon stream to the second combining means; —a second secondary separation device in fluid connection with the second primary separation device, wherein the second secondary separation device is arranged to separate the second concentrated solution stream to a second secondary hydrocarbon stream and a second polymer product stream; and —a second secondary recycling means in fluid connection with the second secondary separation device and the second combining means for recycling the second secondary hydrocarbon stream to the second combining means wherein —the first polymerization reactor train and the second polymerization reactor train are arranged to operate in parallel; —the first primary separation device and the second separation device are arranged to operate in parallel; —the first primary recycling means and the second primary recycling means are arranged to operate in parallel; —the first secondary separation device and the second secondary separation device are arranged to operate in parallel; and —the first secondary recycling means and the second secondary recycling means are arranged to operate in parallel.

    Polymerization Process
    7.
    发明申请
    Polymerization Process 有权

    公开(公告)号：US20220348702A1

    公开(公告)日：2022-11-03

    申请号：US17624449

    申请日：2020-05-18

    Applicant: Borealis AG

    Inventor： Mohammad Al-haj Ali ,  Mubashar Sattar ,  Noureddine Ajellal ,  Henry Sleijster ,  Charlotta Weber

    IPC: C08F210/00 ,  B01D3/14 ,  B01D5/00

    Abstract: The polymerization process comprises polymerizing an olefin monomer and a comonomer in the presence of a polymerization catalyst in a polymerization step conducted in a polymerization reactor in a solvent to produce a solution comprising a polymer of the olefin monomer and the comonomer.
    The polymerization process comprises withdrawing an exhaust stream of the solution from the polymerization reactor in a withdrawing step.
    The polymerization process comprises separating the exhaust stream to a first primary stream and a primary concentrated solution stream in a first primary separation step, wherein the first primary stream comprises hydrocarbons and polymer.
    The polymerization process comprises separating the first primary stream to a second primary stream and a third primary stream in a second primary separation step, wherein the second primary stream comprises dissolved polymer and the third primary stream comprises majority of the hydrocarbons.
    The polymerization process comprises cooling the third primary stream to a temperature of −80 to 20° C. in a primary cooling step to obtain a cooled third primary stream.
    The polymerization process comprises separating the cooled third primary stream to a fourth primary stream and a fifth primary stream in a third primary separation step, wherein the fourth primary stream comprises hydrocarbons in vapour phase and the fifth primary stream comprises liquid hydrocarbons.
    The polymerization process comprises returning the fourth primary stream and the fifth primary stream independently in a primary returning step to a location upstream of the polymerization reactor.

    Polymerization process
    8.
    发明授权
    Polymerization process 有权

    公开(公告)号：US12139565B2

    公开(公告)日：2024-11-12

    申请号：US17624449

    申请日：2020-05-18

    Applicant: Borealis AG

    Inventor： Mohammad Al-haj Ali ,  Mubashar Sattar ,  Noureddine Ajellal ,  Henry Sleijster ,  Charlotta Weber

    IPC: C08F10/02 ,  B01D1/06 ,  B01D3/14 ,  B01D5/00 ,  C08F6/00 ,  C08F210/00

    Abstract: The disclosure relates to a polymerization process.
    The polymerization process comprises polymerizing an olefin monomer and a comonomer in the presence of a polymerization catalyst in a polymerization step conducted in a polymerization reactor in a solvent to produce a solution comprising a polymer of the olefin monomer and the comonomer.
    The polymerization process comprises withdrawing an exhaust stream of the solution from the polymerization reactor in a withdrawing step.
    The polymerization process comprises separating the exhaust stream to a first primary stream and a primary concentrated solution stream in a first primary separation step, wherein the first primary stream comprises hydrocarbons and polymer.
    The polymerization process comprises separating the first primary stream to a second primary stream and a third primary stream in a second primary separation step, wherein the second primary stream comprises dissolved polymer and the third primary stream comprises majority of the hydrocarbons.
    The polymerization process comprises cooling the third primary stream to a temperature of −80 to 20° C. in a primary cooling step to obtain a cooled third primary stream.
    The polymerization process comprises separating the cooled third primary stream to a fourth primary stream and a fifth primary stream in a third primary separation step, wherein the fourth primary stream comprises hydrocarbons in vapour phase and the fifth primary stream comprises liquid hydrocarbons.
    The polymerization process comprises returning the fourth primary stream and the fifth primary stream independently in a primary returning step to a location upstream of the polymerization reactor.

    Process for reducing the VOC content of plastomers
    9.
    发明授权
    Process for reducing the VOC content of plastomers 有权

    公开(公告)号：US11603418B2

    公开(公告)日：2023-03-14

    申请号：US17041282

    申请日：2019-05-28

    Applicant: Borealis AG

    Inventor： Mohammad Al-Haj Ali ,  Michiel Bergstra ,  Charlotta Weber ,  Gert Stijnen

    IPC: C08F6/00 ,  B29B9/16 ,  B29K23/00

    Abstract: The present invention relates to a process for reducing the volatile organic compound (VOC) content of plastomers the process comprising the steps of subjecting the plastomer in granular form containing VOCs which is contained in an aeration vessel to a gasflow, and withdrawing granular plastomer from the aeration vessel which has a lower content of VOCs, wherein the average particle size of the granular plastomer is greater than 2.5 mm, preferably greater than 2.7 mm, more preferably greater than 3.0 mm, wherein the gas has a minimum temperature of at least 26° C. measured at a gas inlet of the aeration vessel, and a maximum temperature of 4° C. below the Vicat temperature (10N, ISO 306) of the granular plastomer or 35° C. measured at the gas inlet of the aeration vessel, whatever value is lower, and wherein at least a part of the withdrawn granular plastomer is recirculated to the aeration vessel.

    PROCESS FOR REDUCING THE VOC CONTENT OF PLASTOMERS
    10.
    发明申请
    PROCESS FOR REDUCING THE VOC CONTENT OF PLASTOMERS 有权

    公开(公告)号：US20210108007A1

    公开(公告)日：2021-04-15

    申请号：US17041282

    申请日：2019-05-28

    Applicant: Borealis AG

    Inventor： Mohammad Al-Haj Ali ,  Michiel Bergstra ,  Charlotta Weber ,  Gert Stijnen

    IPC: C08F6/00 ,  B29B9/16

    Abstract: The present invention relates to a process for reducing the volatile organic compound (VOC) content of plastomers the process comprising the steps of subjecting the plastomer in granular form containing VOCs which is contained in an aeration vessel to a gasflow, and withdrawing granular plastomer from the aeration vessel which has a lower content of VOCs, wherein the average particle size of the granular plastomer is greater than 2.5 mm, preferably greater than 2.7 mm, more preferably greater than 3.0 mm, wherein the gas has a minimum temperature of at least 26° C. measured at a gas inlet of the aeration vessel, and a maximum temperature of 4° C. below the Vicat temperature (10N, ISO 306) of the granular plastomer or 35° C. measured at the gas inlet of the aeration vessel, whatever value is lower, and wherein at least a part of the withdrawn granular plastomer is recirculated to the aeration vessel.

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