For plastic to be mechanically recycled it usually needs to be sorted by type, with contamination removed. This is challenging for soft plastic and nearly impossible for multilayer plastic packaging.
Advanced recycling, also known as chemical recycling, is a process that breaks down plastic waste back into its basic chemicals, which can then be reused to make new plastics with recycled content.
It complements mechanical recycling by processing mixed, multi-layer and contaminated plastics that are difficult to recycle and often end up in landfill.
Licella’s Cat-HTRTM platform is an advanced form of hydrothermal liquefaction (HTL). HTL uses water under high pressure and temperature to sustainably transform waste plastics back into the chemical building blocks they were made from.
Effectively, the compressed steam (known as supercritical water) breaks down the long chemical chains in the plastic to more simple chemicals, forming a recycled oil similar to refined fossil oil.
Advanced recycling can process a range of plastic but targets those that are difficult to mechanically recycle, such as mixed soft plastic.
The proposed facility will target waste streams of the following plastics:
- High density polyethylene (HDPE)
- Low density polyethylene (LDPE)
- Polypropylene (PP)