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US 2017/0320973 A1Published application
Polymerisation process and polymerisation unit comprising a degassing section
AssigneeIneos Europe AG
InventorsJean-Louis Chamayou, Luc Girardot, Pierre Mangin, Kevin Ramsay
Life of this patent
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Abstract
The present invention relates to processes and apparatus useful for the production of polymer powder, and in particular to processes and apparatus for the degassing of polymer powder.
Claims18
1-11. (canceled)
Polymerisation unit for producing polymer powder comprising
- at least one polymerisation reactor for the polymerisation of monomer and at least one comonomer
- and a degassing section comprising a first cylindrical degassing vessel (V1) in which light (co)monomer(s) are degassed and a second cylindrical degassing vessel (V2) provided in series with the first cylindrical degassing vessel (V1),
- wherein vessel V1 and vessel V2 are each connected to a vent recovery unit, and further wherein the cross-sectional area (S2) of the second degassing vessel is greater than 1.5 times the cross-sectional area (S1) of the first degassing vessel [S2>1.5×S1].
Dependencies are inferred from the claim text.