Traditional refrigerants such as CFC and HCFC have become a memory of The Times. CFC and HCFC have been widely used as refrigerants in refrigerators, commercial cryogenic equipment, automotive air conditioning and other fields, and can also be used as blowing agents in cleaning agents, aerosol spray agents and so on. However, CFC and HCFC have an obvious disadvantage, that is, they all contain chlorine and have certain damage to the ozone layer. Since the 1990s, the international community has issued a series of policies on the use of CFC and HCFC:
1987 Montreal Protocol: Required a 50% reduction in CFC production by 2000.
The London Amendment Act of 1990 called for a 100% closure of CFCS by 2000.
1992 Copenhagen Amendment: phasing out CFCS completely by 1996 and setting a limit on HCFC consumption in 1996 and irreversible phase-out in subsequent years:
2004-65% of the limit
2010-35% of the limit
.2015-10% of the limit
2020-0.5% of the limit
At present, the refrigerator and freezer market in developed countries and some developing countries mostly uses cyclopentane as refrigerant and blowing agent, which is mainly due to the following advantages of cyclopentane as refrigerant:
Environmental characteristics: cyclopentane as a refrigerant, its ozone loss potential (ODP value) and global warming potential (GWP value) are zero, which means that under normal conditions will not cause damage to the Earth’s ozone layer, will not aggravate the global warming trend.
Good refrigeration effect: the refrigeration efficiency of cyclopentane is high, which makes it possible to quickly and effectively reduce the temperature during the refrigeration process and maintain a constant low temperature inside the refrigerator.
Chemical stability: cyclopentane chemical properties are stable, not easy to react with other substances, so in the use of the refrigerator can provide lasting and stable refrigeration effect.
Safety: the spontaneous combustion temperature of cyclopentane is about 380 ° C, which can protect itself in a high temperature environment to a certain extent, reducing the risk of fire and explosion.
Therefore, cyclopentane is bound to become the main force of refrigeration raw materials in the future, and gradually replace the status of traditional refrigerants. Today, large manufacturers are mostly concentrated in China, Shandong Senzhihai New Materials Co., Ltd. as China’s largest cyclopentane manufacturer, covers an area of 220 acres, equipped with efficient solid valve plate tower, improve the distillation separation effect, product quality of up to 99.5%, annual output of cyclopentane up to 30,000 tons/year, exported to many countries and regions, With many of the world’s top 500 refrigeration enterprises to establish in-depth cooperation, is a reliable refrigeration partner.
Post time: Jul-11-2024