Patent ID: 8894758

Claim:
A system for treating a contaminated gas comprising: a vessel comprising: a pool of contaminant-absorbing liquid comprising a hydrogen sulfide scavenger; a manifold for introducing the contaminated gas into the vessel, wherein the manifold introduces the gas into the vessel below the top level of the pool of contaminant-absorbing liquid; at least one flow disperser contained within the vessel and positioned above the manifold and beneath the level of the pool of contaminant absorbing liquid; one or more spray nozzles contained within the vessel and positioned above the level of the pool of contaminant-absorbing liquid, operable to introduce contaminant-absorbing liquid counter-current to the flow of contaminated gas in the vessel; and a drain for removing the contaminant-absorbing liquid from the vessel; a cooler operable for receiving contaminated gas and contaminant absorbing liquid from the vessel, wherein the cooler reduces the temperature of the received contaminated gas and contaminant absorbing liquid; a separator operable to separate the cooled contaminant-absorbing liquid from the cooled contaminated gas; and a heat exchanger operable to reheat the contaminant-absorbing liquid after the contaminant-absorbing liquid leaves the separator.