Patent ID: 6312503
Filing Date: 2001-11-06
Classification: B01D

Abstract:
A gas/liquid contact method for quenching and scrubbing inert gas, comprising the steps of:providing a first contact zone having packing being flowed over by a liquid;quenching a gas by passing said gas through said first contact zone in a substantially countercurrent direction to said first portion of said liquid at a quench rate less than about 5.4.degree. C./ft.sup.2 of packing, creating a quenched gas;providing a second contact zone having a second packing being flowed over by a liquid;partially scrubbing said quenched gas by passing said quenched gas through said second contact zone in a substantially countercurrent direction to said liquid, creating a quenched and partially scrubbed gas;providing a third contact zone having a third packing being flowed over by a cooled liquid; andpassing said quenched and partially scrubbed gas through said third contact zone in a substantially countercurrent direction to said cooled liquid, creating a quenched and scrubbed gas;whereby cool, clean gas is produced.