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US 12,338,303 B2Granted
Process for making propylene-based terpolymer
AssigneeSabic Global Technologies B.V.
InventorsErik Delsman, Petrus Johannes Hubertus Bronsaer, Henrica Norberta Alberta Maria Steenbakkers-Menting, Gopala Krishna Surisetty
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Abstract
The invention relates to a process for production of terpolymers, in particular for the polymerization of propylene, and two other distinct monomers chosen from a group comprising ethylene and a C4-C12 α-olefin in a horizontal stirred reactor comprising an agitated bed and several reaction zones for forming polymer particles.
Claims2
A setup assembly for the production of a terpolymer, the setup assembly comprising at least:
- a horizontal stirred reactor (100) comprising
- an agitated bed for forming polymer particles with at least two reaction zones,
- a plurality of liquid feed ports (111, 112) that are subsequently arranged along a top side of the reactor above the agitated bed, the plurality of liquid feed ports comprising
- a first set of the liquid feed ports (111) and
- a second set of the liquid feed ports (112) arranged subsequent to the first set of the liquid feed ports in a downstream direction of the process, and
- a plurality of gas feed ports (114, 115) that are subsequently arranged along a bottom side of the reactor below the agitated bed, the plurality of gas feed ports comprising
- a first set of gas feed ports (114) and
- a second set of gas feed ports (115) arranged subsequent to the first set of gas feed ports in the downstream direction of the process
- a plurality of off-gas ports (116) arranged along a top side of the reactor above the agitated bed in a downstream direction of the process
- a recycle loop comprising:
- a condenser (150) connected to the horizontal stirred reactor (100) by the plurality of off-gas ports (116), and
- a separator (140) connected
- to the condenser by a gas liquid mixture line (118) and
- to the horizontal stirred reactor by
- a first liquid stream line (119) to the second set of the liquid feed ports (112), and
- a first gas stream line (121) to the second set of gas feed ports (115).
13 more elements
Dependencies are inferred from the claim text.