Material Drying
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Incomplete depolymerization in PET chemical recycling
Problembeschreibung
The depolymerization process (glycolysis or hydrolysis) in PET chemical recycling is incomplete, and the residual PET amount is too high.
Ursachenanalyse
Depolymerization temperature is on the low side or time is insufficient; catalyst dosage is insufficient or deactivated; PET and the depolymerizing agent are not fully mixed.
Lösung
Increase depolymerization temperature and extend reaction time; optimize catalyst type and dosage; improve stirring and mass transfer efficiency.
Wichtigste Erkenntnis
PET chemical depolymerization efficiency depends on reaction conditions and mass transfer effect.
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