PROCESS FOR RECOVERING CONDENSABLE COMPOUNDS FROM INERT GAS-CONDENSABLE COMPOUND VAPOR MIXTURES

摘要

An improved process for recovering one or morecondensable compounds from an inert gas-condensable compoundvapor mixture is provided. The inert gas-condensable compoundvapor mixture is flowed through a first bed of solid adsorbentwhereby the condensable compounds are removed from the mixtureand a residue gas stream comprised of substantiallycondensable compound-free inert gas is produced and disposedof, e.g., vented to the atmosphere. A second bed of solidadsorbent is evacuated by vacuum pumping using a cooled liquidseal vacuum pump. As the resulting inert gas-condensablecompound vapor mixture is contacted with the cooled sealliquid of the liquid seal vacuum pump, a major portion of thecondensable compounds are condensed. The condensed compoundsare recovered and a portion thereof are cooled and recycled ascooled seal liquid for the vacuum pump.