Multi-reactor and multi-zone polyolefin polymerization
By connecting two reactors in series in a multi-zone circulating reactor, polymerization zones with different flow patterns are constructed, producing multi-peak polyolefins with low, medium, and high molecular weights. This solves the problems of insufficient material properties and processability in existing technologies, and achieves improved product properties and uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2019-12-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to effectively manufacture multimodal polyolefin materials with improved properties and processability, especially when forming objects such as pipes, membranes, large and small containers, cups, bottles, and molded products.
Two reactors are connected in series, one of which is a multi-zone circulating reactor, to construct polymerization zones with two different flow patterns. Polyolefins with different molecular weights, including low molecular weight, intermediate molecular weight and high molecular weight components, are produced through the multi-zone circulating reactor. Ethylene is polymerized using the riser and downcomer of the multi-zone circulating reactor to form multi-peak polyolefins.
This study improved the product characteristics and uniformity of multi-peak polyolefin materials, reduced the amount of gel, and enhanced the material's performance and processability.
Smart Images
Figure CN122399728A_ABST
Abstract
Citation Information
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