Heat transfer fluid cooling
Trim cooling and heat recovery on the hot oil circuit that heats the esterification and polycondensation reactors.
Recommended type
Plate & Block Heat Exchanger
The circuit runs far above anything an elastomer survives, which removes gasketed construction from the conversation before any other consideration. A welded block keeps the thermal density of a plate pack at that temperature and still opens for cleaning; shell & tube is the alternative where a code stamp decides it.

