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US 7,332,058 B2Granted
Heat exchanger and process for devolatilizing polymers using same
AssigneeFina Technology, Inc.
InventorJay Reimers
Life of this patent
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Abstract
Disclosed is a process for devolatilizing a polymer including passing the polymer through a devolatizer including a plate heat exchanger wherein the plates of the plate heat exchanger are heated by a plurality of heating tubes and wherein the heating tube including a return tube nested inside of a supply tube. The use of the disclosed invention allows for a comparatively small heat profile across heating plates as compared to prior art plate heat exchangers.
Claims15
A process comprising:
- passing a polymer through a devolatilizer comprising a plate heat exchanger, wherein the plates of the beat exchanger are heated by a plurality of heating tubes and wherein each of the heating tubes comprises a return tube nested inside of a supply tube;
- introducing a heat transfer fluid into the supply tube;
- passing the heat transfer fluid from the supply tube to the return tube;
- and
- withdrawing the heat transfer fluid from the return tube.
2 more elements
Dependencies are inferred from the claim text.