Natural refrigerants, as the name suggests, are found in nature as a substance. They can be produced with minimal effort and are considered environmentally friendly. Propane, propene, ethane and ethene are common representatives of this refrigerant group. They are obtained as by-products during petroleum production.
Advantages: Natural refrigerants have a low GWP value. They have no or only very little influence on the greenhouse effect. Their molecules are relatively unstable and rapidly decay in the atmosphere. In addition to this, natural refrigerants are cheap to produce.
Disadvantages: Most natural refrigerants are flammable. This creates risks that must already be taken into account during product development. State regulations for the location, operation, and transport of devices with flammable refrigerants are intended to help minimize these risks.