What method is typically used in recycling refrigerant to reduce moisture?

The method typically used in recycling refrigerant to reduce moisture is oil separation. This process involves removing the lubricating oil mixed with the refrigerant, which can help to lower the moisture content of the refrigerant. In the recycling process, the refrigerant is processed to ensure that it meets the purity standards before being reused.

Oil separation effectively addresses the concerns related to moisture because moisture in refrigerants can lead to acid formation and other issues within the refrigeration system. By removing oil, which can carry moisture, the overall moisture level in the refrigerant is also reduced.

While vacuum evacuation is a technique used to remove moisture from a refrigeration system before charging it with refrigerant, it is not a method specifically used in the recycling process. Refrigerant blending refers to mixing different types of refrigerants, which does not specifically target moisture reduction. Thermal treatment involves heat processes that can be used for destroying refrigerants but does not focus on moisture removal within the recycling context.