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1. 发明授权

US11981761B2 Process for obtaining low volatile plastomers 有权
公开(公告)号：US11981761B2
公开(公告)日：2024-05-14
申请号：US16959348
申请日：2019-01-15
申请人： BOREALIS AG
发明人： Mohammad Al-Haj Ali , Vasileios Kanellopoulos , Michiel Bergstra
IPC分类号： B29B9/16 , B29B9/06 , C08F210/16 , B29K23/00
CPC分类号： C08F210/16 , B29B9/065 , B29B9/16 , B29B2009/168 , B29K2023/08
摘要： 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/10 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.

2. 发明公开

US20240009590A1 Screening Assembly and Process for Screening Polymer from an Effluent Stream at Reduced Levels of Polymer Entrainment 审中-公开
公开(公告)号：US20240009590A1
公开(公告)日：2024-01-11
申请号：US18014381
申请日：2021-08-05
申请人： Borealis AG
发明人： Henry Sleijster , Mohammad Al-Haj Ali , Mubashar Sattar , Noureddine Ajellal , Charlotta Weber
IPC分类号： B01D3/14 , B01D3/06 , B01D53/14 , B01D53/18 , C08F6/12 , C08F6/00
CPC分类号： B01D3/148 , B01D3/06 , B01D53/1418 , B01D53/18 , C08F6/12 , C08F6/001 , B01D2256/24 , B01D2252/205
摘要： The present invention is concerned with a screening assembly comprising a separating device connected to a conduit for an effluent stream comprising a polymer and a mixture of hydrocarbons, wherein the separating device is configured to separate the effluent stream into a polymer-rich stream and a polymer-lean vapor stream, wherein the first separation device comprises an inlet, a first outlet for withdrawing a polymer-rich stream, and a second outlet for withdrawing a polymer-lean vapor stream, a screening device connected to the separating device via a conduit for the polymer-lean vapor stream, wherein the screening device comprises a first inlet connected to the conduit for the polymer-lean vapor stream, a first outlet for withdrawing a cleaned vapor stream, a second outlet for withdrawing a polymer-comprising condensed vapor stream, and at least one second inlet for introducing a condensed vapor stream.

3. 发明授权

US11149096B2 Method of recovering olefins in a solution polymerization process 有权
公开(公告)号：US11149096B2
公开(公告)日：2021-10-19
申请号：US16646606
申请日：2018-11-22
申请人： Borealis AG
发明人： Mohammad Al-Haj Ali , Erik Eriksson , Guhan Mathivanan , Jukka Räsänen , Henry Sleijster , Sameer Vijay , Samuli Zitting
IPC分类号： C08F6/00 , C08F2/06
摘要： The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapor phase coexist; (B) withdrawing a vapor stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first bottom stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; characterized in that at least a part of the second overhead stream is withdrawn as a purge stream.

4. 发明授权

US10676544B2 Process for polymerising alpha-olefin monomers 有权
公开(公告)号：US10676544B2
公开(公告)日：2020-06-09
申请号：US15773040
申请日：2016-11-22
申请人： Borealis AG
发明人： Kauno Alastalo , Mohammad Al-Haj Ali , Vasileios Kanellopoulos , Apostolos Krallis
IPC分类号： C08F2/01 , C08F2/14 , B01J19/18 , C08F2/12 , C08F10/02 , C08F10/06
摘要： A process for polymerising alpha-olefin monomers in a loop reactor comprising the steps of introducing a main feed stream (2) comprising at least one alpha-olefin monomer into the loop reactor (1); introducing a polymerisation catalyst into the loop reactor (1); polymerising the at least one alpha-olefin monomer in the presence of the polymerisation catalyst in the loop reactor (1) to produce a slurry comprising polyolefin particles; withdrawing an outlet stream (4) comprising at least a portion of the slurry from the loop reactor (1); adding a first feed stream (9) comprising the at least one alpha-olefin monomer and/or hydrogen to the outlet stream (4) to form a concentrator inlet stream (8); introducing the concentrator inlet stream (8) into a concentrator (5); withdrawing from the concentrator (5) an overflow stream (6) comprising the polyolefin particles, wherein the concentration of the polyolefin particles in the overflow stream (6) is smaller than in the concentrator inlet stream (8); withdrawing from the concentrator (5) a bottom outlet stream (12) comprising the polyolefin particles, wherein the concentration of the polyolefin particles in the bottom outlet stream (12) is greater than in the concentrator inlet stream (8); returning the overflow stream (6) into the loop reactor (1) in an area different from that from which the outlet stream (4) is withdrawn.

5. 发明授权

US10597472B2 In-line blending process 有权
公开(公告)号：US10597472B2
公开(公告)日：2020-03-24
申请号：US15776095
申请日：2016-12-21
申请人： Borealis AG
发明人： Henry Sleijster , Mohammad Al-Haj Ali , Jukka Rasanen , Samuli Zitting , Michiel Bergstra , Erik Eriksson , Christof Wurnitsch , Guhan Mathivanan , Sameer Vijay , Vasileios Kanellopoulos , Jani Aho , Jouni Takakarhu
IPC分类号： C08J11/02 , C08F6/10 , C08F210/14 , C08F6/00 , C08F2/06 , C08F6/12 , C08F10/00 , C08F210/02 , B01D1/14 , B01D1/00
摘要： An in-line blending process for polymers comprising: (a) providing two or more reactor-low pressure separator units (1,7) in parallel configuration, each reactor-low pressure separator unit comprising one reactor (2,8) fluidly connected to one low pressure separator (3,9) downstream and further a recycling line (5,11) connecting the low pressure separator (3,9) back to the corresponding reactor (2,8); (b) polymerizing olefin monomers having two or more carbon atoms in each of the reactors (2,8) in solution polymerisation; (c) forming an unreduced reactor effluents stream including a homogenous fluid phase polymer-monomer-solvent mixture in each of the reactors (2,8), (d) passing the unreduced reactor effluents streams from each of the reactors (2,8) through the corresponding low pressure separators (3,9), whereby the temperature and pressure of the low pressure separators (3,9) is adjusted such that a liquid phase and a vapour phase are obtained, whereby yielding a polymer-enriched liquid phase and a polymer-lean vapour phase, and (e) separating the polymer-lean vapour phase from the polymer-enriched liquid phase in each of the low-pressure separators (3,9) to form separated polymer-lean vapour streams and separated polymer-enriched liquid streams; (f) combining the polymer-enriched liquid streams from step (e) in a further low-pressure separator and/or a mixer (13) to produce a combined polymer-enriched liquid stream (16); (g) reintroducing the polymer-lean vapour streams from step (e) via recycling lines (5,11) into the corresponding reactors (2,8).

6. 发明授权

US11512157B2 Method of recovering olefins in a solution polymerisation process 有权
公开(公告)号：US11512157B2
公开(公告)日：2022-11-29
申请号：US16768601
申请日：2018-11-22
申请人： Borealis AG
发明人： Mohammad Al-Haj Ali , Erik Eriksson , Guhan Mathivanan , Jukka Räsänen , Henry Sleijster , Sameer Vijay , Samuli Zitting
IPC分类号： C08F210/16 , B01D3/14 , B01J19/06 , C08F6/00 , C08F6/04
摘要： The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapour phase coexist; (B) withdrawing a vapour stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first overhead stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; (G) passing the second overhead stream to a third fractionator; (H) withdrawing a third overhead stream and a third bottom stream from the third fractionator; characterised in that at least a part of the third bottom stream is withdrawn as a purge stream.

7. 发明授权

US11440983B2 Phase-stabilized ethylene alpha olefin copolymerization process 有权
公开(公告)号：US11440983B2
公开(公告)日：2022-09-13
申请号：US16761917
申请日：2018-05-22
申请人： Borealis AG
发明人： Mohammad Al-Haj Ali , Henry Sleijster
IPC分类号： C08F210/16 , C08F2/01 , C08F2/04 , C08F6/06 , C08F2/06
摘要： A process for copolymerizing ethylene and at least one C3 to C8 alpha olefin to obtain an ethylene-C3 to C8 alpha olefin copolymer, the process comprising a) copolymerizing ethylene and at least one C3 to C8 alpha olefin in a solvent in a solution polymerization reactor to obtain an intermediate polymer solution, b) discharging an effluent stream from the intermediate polymer solution into a heat exchanger, c) setting the temperature of the effluent stream in the heat exchanger to obtain a heated effluent stream, d) feeding the heated effluent stream to a flash separation, e) separating at least a part of the ethylene-C3 to C8 alpha olefin copolymer in the flash separation, characterized by feeding an inert hydrocarbon fulfilling 90° C.

8. 发明申请

US20220032206A1 SEPARATOR AND PROCESS FOR SEPARATING VOLATILE COMPOUNDS FROM A POLYMER SOLUTION 有权
公开(公告)号：US20220032206A1
公开(公告)日：2022-02-03
申请号：US17297499
申请日：2019-11-28
申请人： Borealis AG
发明人： Mohammad Al-Haj Ali , Mubashar Saltar
IPC分类号： B01D3/06 , C08F210/02 , B01D3/14
摘要： The present invention is concerned with a separator comprising a vessel, a first inlet, a second inlet, a first outlet, a second outlet, and a separation device located downstream of the first outlet, wherein the separation device comprises two outlets, whereas one outlet of the separation device is fluidly connected to the second inlet of the vessel. Furthermore, the present invention is also concerned with a process for separating hydrocarbons from a reaction solution comprising a polymer and said hydrocarbons, comprising the steps of passing the reaction solution through the first inlet into the separator according to the invention, withdrawing a first outlet stream through the first outlet, withdrawing a second outlet stream through the second outlet, separating the first outlet stream in the separation device to produce a first separated stream and a second separated stream, withdrawing the first separated stream from the separation device and passing the first separated stream through the second inlet into the vessel, and withdrawing the second separated stream from the separation device.

9. 发明授权

US09790290B2 Gas phase polymerization process 有权
公开(公告)号：US09790290B2
公开(公告)日：2017-10-17
申请号：US15110669
申请日：2015-02-27
申请人： BOREALIS AG
发明人： Vasileios Kanellopoulos , Apostolos Krallis , Mohammad Al-Haj Ali , Ravindra Tupe
IPC分类号： C08F2/00 , C08F210/00 , C08F2/34 , C08F2/01
CPC分类号： C08F2/34 , C08F2/01 , C08F110/02
摘要： 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.

10. 发明授权

US09539556B2 Process for polymerizing olefins in a fluidized bed 有权
标题翻译：在流化床中聚合烯烃的方法
公开(公告)号：US09539556B2
公开(公告)日：2017-01-10
申请号：US15033010
申请日：2015-02-27
申请人： BOREALIS AG
发明人： Mohammad Al-Haj Ali , Apostolos Krallis , Vasileios Kanellopoulos
IPC分类号： B01J8/18 , C08F2/00 , B01J8/24 , C08F10/02
CPC分类号： B01J8/24 , B01J8/0055 , B01J8/388 , B01J2208/00176 , B01J2208/00796 , B01J2219/1946 , C08F10/00 , C08F10/02 , C08F2500/12 , C08F2500/18 , C08F2/01 , C08F2/34
摘要： 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.
摘要翻译：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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