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1. 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a third bottom stream from the third fractionator; characterised in that at least a part of the third bottom stream is withdrawn as a purge stream.

2. 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bottom stream from the second fractionator; characterized in that at least a part of the second overhead stream is withdrawn as a purge stream.

3. 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).

4. 发明授权

US10829610B2 Process and apparatus for in-line blending of polymers 有权
公开(公告)号：US10829610B2
公开(公告)日：2020-11-10
申请号：US16065066
申请日：2016-12-21
申请人： BOREALIS AG
发明人： Mohammad Al-Haj Ali , Michiel Bergstra , Erik Eriksson , Guhan Mathivanan , Jukka Räsänen , Henry Sleijster , Sameer Vijay , Christof Wurnitsch , Samuli Zitting , Vasileios Kanellopoulos , Jani Aho
IPC分类号： C08F10/02 , C08F210/16 , C08F2/01 , C08J11/02 , C08F2/00 , C08F6/00 , C08F2/06 , C08F6/12 , C08L23/08 , C08L23/14
摘要： The present invention deals with a process for polymerising olefins in a solution and withdrawing a stream of the solution from the polymerisation reactor and passing it to a sequence of heating steps. The heated solution is passed to a separation step, which is conducted at a pressure of no more than 15 bar and in which separation step a liquid phase comprising the polymer and a vapour phase coexist. A vapour stream and a concentrated solution stream comprising the polymer are withdrawn from the separation step. At least a part of the vapour stream is passed to the first polymerisation reactor, to the second polymerisation reactor or to both.

5. 发明申请

US20200277413A1 A METHOD OF RECOVERING OLEFINS IN A SOLUTION POLYMERISATION PROCESS 审中-公开
公开(公告)号：US20200277413A1
公开(公告)日：2020-09-03
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 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 bottom stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; characterised in that at least a part of the second overhead stream is withdrawn as a purge stream.

6. 发明授权

US10759880B2 Process for recovering hydrocarbons in a solution polymerisation process 有权
公开(公告)号：US10759880B2
公开(公告)日：2020-09-01
申请号：US15781733
申请日：2016-12-21
申请人： Borealis AG
发明人： Mohammad Al-Haj Ali , Erik Eriksson , Guhan Mathivanan , Henry Sleijster , Sameer Vijay , Christof Wurnitsch , Samuli Zitting
IPC分类号： C08F6/12 , C08F2/06 , C08F6/00 , B01D3/14 , B01D3/42 , C08F6/04 , C08F10/02 , C08F10/06 , C08F36/02
摘要： A process for producing a polymer composition comprising the steps (A) to (M) as recited herein, involving the polymerization, in a polymerization reactor of a first polymer, a first stream thereof being passed into a first separator wherein a first liquid phase comprising the polymer and a first vapor phase coexist; withdrawing a first vapor stream and a first concentrated solution stream comprising the polymer from the first separator, passing at least a part of the first vapor stream to a first fractionator; withdrawing a first overhead stream and a first bottom stream from the first fractionator; recovering at least a part of the first overhead stream as a first recycle stream and passing it to the polymerization reactor; passing the first concentrated solution stream from the first separator to a second separator, wherein a second liquid phase comprising the polymer and a second vapor phase coexist; passing at least a part of the second vapor stream to a second fractionator; withdrawing a second overhead stream and a second bottom stream from the second fractionator; recovering at least a part of the second overhead stream as a second recycle stream and passing it to the polymerization reactor; wherein the mass flow rate of the first recycle stream is at least 80% of the mass flow rate of the first vapor stream and the mass flow rate of the second recycle stream is at least 70% of the mass flow rate of the second vapor stream.

7. 发明授权

US10358507B2 Process for separating hydrocarbons from polymer 有权
公开(公告)号：US10358507B2
公开(公告)日：2019-07-23
申请号：US15562323
申请日：2016-03-24
申请人： BOREALIS AG
发明人： Mohammad Al-Haj Ali , Vasileios Kanellopoulos , Apostolos Krallis , Henry Sleijster , Samuli Zitting
IPC分类号： C08F6/00 , B01D1/00 , B01D3/06 , B01D1/16 , C08F6/12 , C08F6/10
摘要： 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.

8. 发明申请

US20180327522A1 PROCESS FOR WITHDRAWING POLYOLEFINS 审中-公开
公开(公告)号：US20180327522A1
公开(公告)日：2018-11-15
申请号：US15776089
申请日：2016-12-21
申请人： Borealis AG
发明人： Mohammad Al-Haj Ali , Erik Eriksson , Sameer Vijay , Guhan Mathivanan , Jukka Rasanen , Henry Sleijster , Christof Wurnitsch , Samuli Zitting
IPC分类号： C08F6/12 , C08F6/00 , B01J8/00
CPC分类号： C08F6/12 , B01J8/0015 , C08F6/003 , C08L23/02
摘要： A process for withdrawing polyolefins from a solution polymerization reactor comprising: providing—a low pressure separator 1,—a washing column 2,—a withdrawal line 3 connecting the upper part of the low pressure separator and the washing column—a condenser 4,—a condenser-line 5 connecting the top part of the washing column and the condenser—optionally a recycle solvent vessel 6—optionally a solvent-vessel-line 7 connecting the condenser with the recycle solvent vessel—a reflux line 8 connecting the condenser and the upper part of the washing column or connecting the recycle solvent vessel and the upper part of the washing column—optionally a circulation line 9 fluidly connected to the middle part of the washing column and recycling line 10—a recycling line 10 connecting the bottom of the washing column and the upper part of the low pressure separator,—optionally a wash recycle heater 11 embedded into the recycling line 10—optionally a heater 12 embedded into the circulation line 9 (a) continuously withdrawing a liquid solution stream from the solution polymerization reactor and passing said liquid solution stream into the first low pressure separator 1; (b) withdrawing a first vapour stream and a first liquid stream from the low pressure separator and passing said first vapour stream via withdrawal line 3 into the washing column (c) withdrawing a second vapour stream from the washing column and feeding it via condenser line 5 to condenser 4 (d) cooling the second vapour stream in condenser 4 so that a part of the second vapour stream condenses thereby producing a condensed second vapour stream and an uncondensed second vapour stream (e) passing the condensed second vapour stream to the upper part of the washing column via reflux line 8 (f) withdrawing a second liquid stream from the washing column and passing at least a part of the second liquid stream to the low pressure separator via recyling line 10 (g) recovering heat from the condenser

9. 发明申请

US20220380498A1 Process for the Polymerization of Olefins in Solution Comprising Deactivating the Polymerization Catalyst by Heat 有权
公开(公告)号：US20220380498A1
公开(公告)日：2022-12-01
申请号：US17774967
申请日：2020-12-07
申请人： Borealis AG
发明人： Mohammad Al-haj Ali , Michiel Bergstra , Erik Eriksson , Sameer Vijay , Christof Wumitsch , Samuli Zitting , Henry Sleijster , Noureddine Ajellal
IPC分类号： C08F210/16 , C08F4/659
摘要： The present invention relates to a polymerization 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 polymerization 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, c) withdrawing the reaction mixture from the polymerization reactor as a reactor outlet stream which comprises the ethylene-alpha-olefin co-polymer, unreacted monomer and comonomer, catalyst, and hydrocarbon solvent, d) heating the reactor outlet stream to a temperature which is at least 5° C. higher than the temperature of the reaction mixture at the outlet of the reactor for a time period of between 1 and 250 seconds in order to de-activate the polymerization catalyst, and e) separating hydrocarbon solvent, monomer and comonomer from the reactor outlet stream and recycling it back to the polymerization reactor without further purification steps.

10. 发明授权

US10604595B2 Process for withdrawing polyolefins 有权
公开(公告)号：US10604595B2
公开(公告)日：2020-03-31
申请号：US15776089
申请日：2016-12-21
申请人： Borealis AG
发明人： Mohammad Al-Haj Ali , Erik Eriksson , Sameer Vijay , Guhan Mathivanan , Jukka Rasanen , Henry Sleijster , Christof Wurnitsch , Samuli Zitting
IPC分类号： C08F6/12 , C08F6/00 , B01J8/00 , C08L23/02
摘要： A process for withdrawing polyolefins from a reactor includes: continuously withdrawing a liquid solution stream from a solution polymerization reactor and passing the liquid solution stream into a low pressure separator; withdrawing a first vapour stream and a first liquid stream from the separator and passing the first vapour stream into a washing column; withdrawing a second vapour stream from the washing column and feeding it via a condenser line to a condenser; cooling the second vapour stream in the condenser so that part of the second vapour stream condenses, producing a condensed second vapour stream and an uncondensed second vapour stream; passing the condensed second vapour stream to an upper part of the washing column via a reflux line; withdrawing a second liquid stream from the washing column and passing at least part of the second liquid stream to the separator via a recycling line; and recovering heat.

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