HEAT AND LIQUID RECOVERY USING OPEN CYCLE HEAT PUMP SYSTEM

摘要

The present invention relates to the recovery of heat and/or condensable liquid from a gaseous environment utilizing an open cycle heat pump system. The open cycle heat pump system is employed to alter the temperature of a gas by compression, expansion, heat exchange, and combinations thereof, to condense selected vapors carried in the gaseous environment for removal from the gas. The open cycle heat pump system can also be used to extract the heat from a gas for use as desired. The invention also relates to means for recovering condensable solvent and/or heat from gas streams employed in drying ovens used in processing solvent-laden materials.