Patent · US Active

High-pressure polymerization process of ethylenically unsaturated monomers in a production line having flanges covered by a chimney construction

US10358510B2 · kind B2 · utility

0Cited by

9References

20Claims

0Family size

Assignee

Basell Polyolefine GmbH · DE

Inventors

Andrei Gonioukh · Liblar, DE
Thomas Herrmann · Cologne, DE
Dieter Littmann · Heßheim, DE
Andre-Armand Finette · Cologne, DE
Sven Wolfram · Euskirchen, DE

Key dates

Filing date	May 9, 2017
Grant date	Jul 23, 2019
Priority date	—
Expiry date	May 9, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/00256
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor, wherein at least one of a pre-heater or pre-cooler, a polymerization reactor or a post reactor cooler is composed of tubes of a length from 5 m to 25 m which are flanged together, either directly or via bends, and the flanges are covered by a chimney construction, and wherein air is conveyed through the chimney construction and the air exiting the chimney construction is monitored with respect to the hydrocarbons concentration.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.