The polymerization plant (PPU) has a capacity of 225,000 tons per year and is a Unipol technology plant, with two gas phase reactors, so can produce homopolymers, random copolymers and impact copolymers. The extruder is a Coperion ZSK300, with a 5.5MW Loher main motor and associated transformer. The extruder also has a Maag polymer pump, Gottfert on-line rheometer, and electric hot oil systems for the die plate and barrel. There are six, 280t capacity pellet silos downstream of the extruder, three with air spinner container loading spouts.
There are also another 280t silo, one 140t silo and three 70t silos.
There are also six air blowers for the dilute phase conveying of the pellets from the extruder to the silos or between silos. There are also two Atlas Copco GA132 compressors to drive the air spinners and silo purging. There is also a Refinery Grade Propylene (RGP) purification system which includes a Propylene Treatment Plant (PTP) which contains alumina bed driers, a de-ethaniser column, and a de-butaniser column. The PTP supplies treated RGP to a propane-propylene splitter (PPS). The PPS is a heat pump design for minimum utilities demand. The PTP has a RGP feed capacity of 26 t/hr, whilst the PPS has an RGP feed capacity of 16 t/hr at 70% propylene to produce 11 t/hr polymer grade propylene (PGP) at 98% recovery and 99.0% purity. The PPU, extruder and PPS were commissioned in September 1991. The PTP was commissioned in April 1995. There is a fibre glass cooling water tower comprised of four 15MW cells and three 450kW water circulation pumps. This was commissioned in October 2010.