Method and system for producing a polymer

Patent metadata

Field	Value
Publication number	US-11059925-B2
Application number	US-201716330203-A
Country	US
Kind code	B2
Filing date	Sep 5, 2017
Priority date	Sep 6, 2016
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

The invention relates to a method for producing a polymer from a first component and a second component by means of a reactor ( 50 ), wherein reaction heat in the reactor ( 50 ) is discharged via an evaporative cooler ( 40 ), wherein gaseous exhaust vapour in the reactor ( 50 ) is supplied to the evaporative cooler ( 40 ), and condensed exhaust vapour is guided from the evaporative cooler ( 40 ) back into the reactor ( 50 ). In this way, the first component and/or second component are supplied at least partially via the evaporative cooler ( 40 ) and moved from the evaporative cooler ( 40 ) into the reactor ( 50 ). The invention also relates to a system for producing a polymer, comprising a reactor ( 50 ) and an evaporative cooler ( 40 ) for discharging reaction heat in the reactor ( 50 ). In addition, the evaporative cooler ( 40 ) has at least one filling opening ( 46 ) for filling in the first and/or second component.

First claim

The invention claimed is:

1. A process for producing a (co)polymer from at least one first component and a second component by a reactor, where
heat of reaction arising in the reactor is removed by an evaporative cooler by feeding gaseous vapor formed in the reactor to the evaporative cooler and recirculating condensed vapor from the evaporative cooler to the reactor,
wherein the first component and the second component are at least partly introduced via the evaporative cooler and go from the evaporative cooler into the reactor,
wherein the first component and the second component are at least partly mixed with a solvent, with the solvent being taken from a condensation unit arranged downstream of the reactor, the gaseous vapor ascending against the force of gravity in vertical tubes of the evaporative cooler and condensing in the evaporative cooler, and with the condensed vapor subsequently flowing together with the first component and the second component under the force of gravity back into the reactor.

2. The process of claim 1 , wherein the first component contains styrene and wherein the second component contains acrylonitrile.

3. The process of claim 1 , wherein the second component contains acrylonitrile and wherein the first component contains alpha-methylstyrene.

4. The process of claim 1 , wherein the first component contains styrene and wherein the second component contains methyl methacrylate.

5. The process of claim 1 , wherein the first component and/or the second component are introduced at least partly from above through a cap of the evaporative cooler.

6. The process of claim 1 , wherein the first component and/or the second component are at least partly introduced from above into a plurality of vertical tubes of the evaporative cooler.

7. The process of claim 1 , wherein the first component and/or the second component are introduced at least partly in liquid form into the evaporative cooler.

8. The process of claim 7 , wherein the solvent is taken via a collection vessel from the condensation unit arranged downstream of the reactor.

9. The process of claim 1 , wherein the first component and/or the second component are at least partly introduced directly into the reactor.

10. A system for producing a polymer from at least one first component and a second component, comprising:
a reactor, and
an evaporative cooler for removing heat of reaction arising in the reactor,
wherein the evaporative cooler has at least one feed opening for introducing the first component and/or the second component,
wherein a return conduit for feeding a solvent from a condensation unit arranged downstream of the reactor into the evaporative cooler is provided,
wherein the reactor and the evaporative cooler are arranged in such a way that vapor formed in the reactor ascends against the force of gravity into the evaporative cooler and that vapor condensed in the evaporative cooler flows together with the first component and/or the second component under the force of gravity into the reactor.

11. The system of claim 10 , wherein the at least one feed opening is arranged in a cap of the evaporative cooler.

12. The system of claim 11 , wherein nozzles are arranged in the cap in such a way that the first component and/or second component introduced through the at least one feed opening are distributed from above into vertical tubes of the evaporative cooler.

13. The system of claim 10 , wherein the return conduit is connected to a collection vessel and wherein the condensation unit is connected to the collection vessel.

Assignees

• Ineos Styrolution Group Gmbh
• Ineos Styrolution Group

Inventors

• Fischer Wolfgang
• Ittemann Peter
• Patcas Florian
• Ruf Michael
• Moors Rainer
• Schnabel Thorsten

Classifications

• C08F220/44 Primary

  Acrylonitrile · CPC title

• B01J19/18 Primary

  Stationary reactors having moving elements inside (B01J19/08, B01J19/26 take precedence) · CPC title

• B01J19/2425

  in parallel · CPC title

• B01J2219/00103

  in a heat exchanger separate from the reactor · CPC title

• B01J2219/00085

  Plates; Jackets; Cylinders · CPC title