Patent · US Active

Polymer stream transfer

US8367782B2 · kind B2 · utility

4Cited by

3References

17Claims

0Family size

Assignee

INEOS MANUFACTURING BELGIUM NV · BE

Inventors

Daniel Marissal · Braine-le-Comte, BE
Marc Parisel · Vilvoorde, BE
Brent R. Walworth · Sint-Niklaas, BE

Key dates

Filing date	Apr 15, 2009
Grant date	Feb 5, 2013
Priority date	—
Expiry date	Jun 13, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF28F27/00
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Process for heating a polymer-containing stream being transferred from a polymerization reactor to a separation zone or device, by passing the stream through a heater having at least one transfer line for the stream and a heater for heating the transfer line. The average particle size of the solid polymer is less than 3mm, the mass flowrate of the polymer-containing stream exiting the heater is no more than 15% greater than the mass flowrate exiting the reactor, the average velocity of the polymer-containing stream either at a point 80% along the length of the heated part of the transfer line measured from the transfer line inlet, or at the transfer line outlet, is at least 6 m/s, and the pressure drop across the transfer line per unit length is between 0.0125 bar/m and 0.1 bar/m.

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