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An Encyclopedia on Refrigerant Gas Knowledge


  • Q The Definitions of CFC HCFC and HFC Refrigerants


    1. CFC Refrigerant: Freon refrigerants, the components of fluorine F, chlorine Cl and carbon C, are listed as a controlled substance by the Montreal Protocol because of their greatest damage to the ozone layer.


    2. HCFC Refrigerant: The elements hydrogen H, chloride Cl, fluorine F and carbon C are regarded as the most important transitional substitutes for CFC because their ozone layer destruction coefficient is only a few percent of R11.


    3. HFC Refrigerant: The ozone layer destruction coefficient of hydrogen H, fluorine F and carbon C is 0, but the climate warming potential is very high.Under the compliance requirements of the Amendment of Montreal Agreement, China is required to freeze the production and use of HFCs at baseline levels beginning in 2024. (Baseline is the average HFCs from 2020 to 2022, plus 65% of the baseline HCFC level in CO2 equivalent) The production and use of HFCs will not exceed 90% of the baseline from 2029, 70% from 2035, 50% from 2040, and 20% from 2045.


    Non-azeotropic refrigerant mixtures refer to refrigerants that are formed by mixing two or more substances.





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