Airlogistic

If your question relates to drying air in a compressed air system, then you would use a refrigeration system designed to do just that. These are packaged units usually air cooled. The evaporator is similar to a shell and tube heat exchanger, where the refrigerant is contained in the tubes, with the air being introduced into the shell. By dropping the compressed air temperature below the dew point, any moisture will condense - along with any oil that might have been entrained in the air. A condensate trap discharges the water-oil to a drain.

If you are referring to a dryer-filter in a refrigeration circuit, these are installed on the discharge side of the compressor (hot gas). These dryers are canisters containing a desicant which removes any moisture that might be entrained in the air.

You mention using refrigeration controlled dehumidifying. Refrigeration only removes moisture to a point. If you need drier air than that, you would look at probably silica gel dehumidification after the refrigeration. How dry do you need to make your air?