A circular product via a green process
Our material recycling technology constitutes a unique example delivering a circular product (PVC) via a green process. Contrary to simple mechanical recycling or the use of organic solvents (for example for selective dissolution), our approach relies on non-harmful chemicals and is thus characterized by a low carbon footprint.
Our technology
Our technology for PVC recycling relies on the use of a green solvent, namely supercritical carbon dioxide (scCO2). The latter is unanimously considered as a “green” solvent and it just consists of CO2 above the critical temperature (Tc=33°C) and pressure (Pc=73 atm). In this state (see cartoon below), the molecules are still organized is a kind of liquid state, but display enough mobility to behave also as a gas. Indeed, scCO2 is characterized by a typical liquid density as well as gas-like diffusivity.
These characteristics (on top of chemical inertness and easy removal by depressurization), makes the
use of scCO2 for PVC recycling extremely attractive from an environmental point of view.
Our technology allows thus the production of clean PVC by selective removal of:
