Method and apparatus for discharging a polymer from a gas-phase reactor

US8853334B2 · kind B2 · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Manfred Hecker · Linz, DE
• Paulus De Lange · Wesseling, DE
• Klaus Berhalter · Bornheim, DE
• Thomas Hora · Parker, US
• Axel Hamann · Kerpen, DE

Key dates

• Filing date: Jun 19, 2012
• Grant date: Oct 7, 2014
• Expiry date: Jun 19, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/92
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Process and apparatus for discharging polyolefin particles from a gas-phase polymerization reactor of a pressure from 1.0 MPa to 10 MPa to a discharge vessel of a pressure from 0.1 MPa to 1.0 MPa wherein the discharging is carried out discontinuously through at least two discharge lines in which the polyolefin particles are transported horizontally or upwards.