CrystallCut pelletising systems for mega-scale PET plant in China
Nordson Corporation will supply sixteen of its process-patented BKG brand CrystallCut pelletising systems for a mega-scale PET resin plant scheduled for startup this year by Jiangyin Chengold Packaging Materials Co., Ltd. in Jiangsu Province, China.
Nordson’s CrystallCut process is said to provide substantial energy savings in comparison with standard PET polymerisation systems by using the thermal energy of the molten polymer in PET pelletising for subsequent crystallisation. In the Jiangyin Chengold facility, the CrystallCut systems will deliver PET pellets to EcoSphere solid state polycondensation (SSP) systems built by Polymetrix AG, Oberbüren, Switzerland, which contracted for the use of the CrystallCut units. Chemtex Group, NC, USA is the prime contractor for the entire bottle-grade PET resin plant.
The CrystallCut system integrates underwater pelletising, drying, water filtration and direct crystallising at temperatures of up to 180°C and crystallinity up to 40%. In the new PET plant, the system will provide a pellet temperature adjusted to the process for crystallisation and delivery to the SSP equipment, which will be supplied by Polymetrix.
Nordson BKG will also supply sixteen condensation systems for the water recovered from the hot air in the process. These are expected to provide additional savings through reduction in water filling.
