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Name
Mitsui Hypol-II
Owner
/ Mitsui Chemicals
Brand
Hypol-II
Process
Polypropylene processes
Type
Bulk-Slurry Polymerization of Propylene
Available

Description

PP technologies were developed in collaboration between Mitsui Chemicals and Montedison (now LyondellBasell) from 1975 to 1996, in which timeframe high-activity, high-stereospecificity catalysts were jointly developed.

The  Hypol-II process consists in 1st stage bulk polymerization in a series of two auto-refrigerated adiabatic loop reactors where homopolymers and random copolymers are made. Impact copolymers are then made in the second stage fluidzed bed reactor. 

Differences with the Spheripol process are stated to reside in the design of the gas phase reactor with longer residence time, claimed to allow higher rubber content in impact copolymers, as well as to result in more stable operation without fouling or frequent shutdowns and longer running time before shutdown for cleaning. 

References

  1.  Mitsui Chemicals Inc. License Division, 12th Sep 2018, Hypol-Ⅱ for Licensed PP Technology.
  2. TOWNSEND Solutions, 22 May 2016, Polypropylene:  Technology Review. 
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Technology Picture
Hypol-II Conceptual Flow Scheme https://www.scribd.com/document/500273880/HYPOL-II-pp-process
Technology Picture
Hypol-II Conceptual Flow Scheme https://www.scribd.com/document/500273880/HYPOL-II-pp-process
  Map
Entity Site (Country) Asset (Plant)
LSP LSP Long Son Complex PP Plant
Luoyang Petrochem. Luoyang Petrochem. PP1
Mitsui Chemicals Osaka Works PP Plant
NGHI NGHI Refinery PP Plant
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Transaction Name Date
Modified by UserPic   Kokel, Nicolas 6/23/2024 7:16 AM
Added by UserPic   Kokel, Nicolas 1/11/2021 12:00 AM