Patent ID: 7819952
Filing Date: 2010-10-26
Classification: B01D

Abstract:
1. A method to remove hydrogen sulfide from a stream of gas comprising: providing a hydrogen sulfide scavenger liquid; providing a treatment container having an interior volume, an inlet for receiving the stream of gas, an outlet for dispensing the stream of gas, a retaining reservoir for holding a quantity of said hydrogen sulfide scavenger liquid, and a catch reservoir for holding liquid and solid contaminants; providing a first cyclone separator associated with the inlet and with the catch reservoir; providing a second cyclone separator associated with the outlet and with the retaining reservoir; placing a quantity of said hydrogen sulfide scavenger liquid in the retaining reservoir; providing a porous medium; substantially wetting the porous medium with the hydrogen sulfide scavenger liquid from the retaining reservoir; treating the stream of gas with said first cyclone separator to remove any liquid and solid contaminants prior to entry into said interior volume of the treatment container and prior to contacting any of the porous medium; directing said liquid and solid contaminants into said catch reservoir; passing the treated stream of gas through said wetted porous medium, thereby scrubbing the stream of gas with said hydrogen sulfide scavenger liquid inside said interior volume and using said wetted porous medium; treating the scrubbed stream of gas with said second cyclone separator to remove any remaining hydrogen sulfide scavenger liquid; and directing said remaining hydrogen sulfide scavenger liquid into said retaining reservoir.