Patent ID: 7740816
Filing Date: 2010-06-22
Classification: B01D

Abstract:
1. A method for treating gases to be scrubbed, comprising: a. filling a scrubber having a reaction chamber with lean liquid that covers a sintered permeable membrane disposed across in the reaction chamber and additionally fills the reaction chamber an additional 20 percent; b. introducing gases to be scrubbed from a source to the reaction chamber on a first side of the sintered permeable membrane; c. building up pressure in the reaction chamber forming a reaction zone in the sintered permeable membrane; d. intermingling gases to be scrubbed with lean liquid in the sintered permeable membrane; e. forming a reaction zone above the sintered permeable membrane; f. producing scrubbed gas in the reaction zone; and g. passing scrubbed gas to an exit port at a rate equal to the rate which gases to be scrubbed are treated in the reaction zone while creating a pressure drop of at least 0.2 psi in the reaction chamber wherein the scrubbed gas has an initial drop in contamination concentration of at least 99 percent gradually decreasing to 70 percent as additional gases to be scrubbed are introduced to the sintered permeable membrane without replacing the lean liquid.