Abstract: A system for refrigerant and recovery and processing includes a hollow fluid-tight pressure vessel having a fluid input; a hollow annular jacket having its inner surface in thermal communication with the pressure vessel, the jacket having a polar axis in substantial alignment with the gravity vector, and the jacket having a liquid accumulator at the bottom thereof. The jacket is provided with an input in liquid communication with the refrigeration system to be vented during a recovery process, such input line in fluid communication with the pressure vessel during reprocessing of the refrigerant. The input from the refrigerant line is further provided with a liquid expansion element for selectively increasing the volume of fluid flowing from the vessel, or from the refrigerant system to be vented. A condenser is in fluid communication with the output of the pressure vessel.