What process might involve multiple passes through devices designed to cleanse refrigerant?

The process that involves multiple passes through devices designed to cleanse refrigerant is recycling. During the recycling process, refrigerants are passed through filtration systems and separators to remove contaminants such as moisture, acids, and non-condensables. This step is crucial to ensure that the refrigerant can be reused safely and effectively in HVAC systems or refrigeration cycles.

Recycling typically includes mechanisms such as driers and filters that improve the quality of the refrigerant, making it suitable for reintroduction into a system. The objective here is to restore the refrigerant to a condition that meets the required specifications for safe operation.

Recovery, while related to the removal of refrigerant from a system, focuses primarily on collecting refrigerant for future disposal or reclamation rather than cleansing it for reuse. Reclamation goes a step further, involving processes that can purify and restore refrigerant to industry standards, but it is not usually specified as involving multiple passes through cleansing devices. Disposal refers to the safe elimination of refrigerant and does not involve any cleansing processes for reuse.