Environmental protection and refrigerants substitution strategy

In current, the refrigerants of the refrigeration and air-conditioning are more about CFC and HCFC, these substances are damaging to the ozone layer and greenhouse. 1987 launched the ldquoMontreal Protocolrdquo is to protect the Earth's ozone layer international document, and in 1997 launched the ldquoKyoto Protocolrdquo is to slow global warming international document. The two documents gave the specific need of the CFC and HCFC Refrigerants cut out a time limit, and often based on scientific observations out to adjust the pace and the whole is speeding up. In this paper, China for example, the refrigerant application and development, environmental impacts and substitution technologies of the developing countries explored. It considered that developing countries should actively engage in green refrigerants research. At the same time, they should not to limit or speed up to cut out the HCFC substances. Contrary, they should take full advantage of the 30 years of material HCFC the ldquograce periodrdquo for developing countries by the international community and make HCFC substances full play active role out of the CFC substances.