What is the synthetic lubricant presently used with ternary blends containing HCFCs?

The synthetic lubricant commonly used with ternary blends containing HCFCs is alkylbenzene. This type of lubricant is chosen for its compatibility with the properties of HCFC refrigerants and is effective in providing lubrication within the system while also being stable under varying temperature conditions.

Alkylbenzene lubricants have favorable solubility characteristics with HCFCs, allowing for better performance in the refrigeration system. They help to reduce wear and tear on the compressor and enhance overall system efficiency.

Other types of lubricants, such as glycols, esters, and whale oil, do not offer the same level of compatibility or effectiveness with HCFC refrigerants. Glycols are typically not used in refrigeration systems, as they are more suited for other applications like heat transfer fluids. Esters may be used with hydrofluorocarbon (HFC) refrigerants but are less common with HCFC systems due to potential solubility issues. Whale oil, being a natural lubricant, is not used in modern refrigeration applications due to environmental concerns and the availability of synthetic alternatives.

Using alkylbenzene in refrigeration systems with HCFCs ensures better lubrication, reduces the chances of refrigerant leaks, and aids in maintaining the overall efficiency and longevity of the equipment