Recycling - CO2 Condenser.
The condenser is essential in CO2 recirculation. The condenser is a piece of apparatus or equipment that can be used to condense, that is, to change the physical state of a substance from its gaseous to its liquid state. We use double pipe configuration in small systems (up to 48 liter) and shell and pipe configuration for industrial. We do not use plate exchanger as they clog easily and cannot resist to standard CO2 pressure.
The condenser is an important part of the extraction system as, without it, it cannot be possible to recirculate the CO2.
In fact, all along the process, CO2 continuously changes its status: first liquid, then supercritical, then gaseous and finally back liquid again. Here on the right see all the changes, step by step. Colors: Blue = Liquid CO2, Green = Supercritical CO2, Yellow = Gaseous CO2.
When the gaseous CO2 comes out from the separators, the CO2 is completely clean and can travel to the condenser and, after that, to the Reservoir, where the Liquid CO2 is stored, waiting to be pumped again in the circuit.
Supercritical CO2 recycling presents a promising method for mitigating the environmental impact of plastic waste. By employing supercritical CO2 as a solvent, plastic waste can be efficiently treated, cleansed, and recovered, all with less or without the need for harsh chemicals or energy-intensive processes. Moreover, the recycling of supercritical CO2 can improve the quality and performance of recycled plastics, rendering them better suited for applications of higher value.
This technique holds the potential to reduce greenhouse gas emissions, decrease landfill waste, and reduce resource consumption, thereby creating fresh prospects for the circular economy of plastics. Recycling is essential in production chain: it allows you to reuse raw materials that would otherwise be disposed of. Where possible, it is necessary to invest as much as possible to transform waste into valuable raw material.
This is the case of matrices which, to be recycled, must be purified of the compounds used during the original production, but incompatible with the production processes of the industry that intends to recycle it.
The world of plastics can benefit from this solution that we offer, even in the regulatory framework that increasingly tends towards recycling.