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US 6,284,023 B1Granted
Separation of acid gas from natural gas
AssigneeDen Norske Stats Oljeselskap A.S.
InventorsBernt H. Torkildsen, Martin Sigmundstad, Harald Linga, Finn P. Nilsen, Per H. Hanssen
Life of this patent
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Abstract
A method for removing acid gas components from combustion gas and natural gas. The method includes bringing the gas mixture into contact with sea water and subjecting the gas mixture and sea water to turbulent mixing conditions. This causes the acid gas to be absorbed by the sea water. The sea water can be disposed of offshore without any detrimental effect on the environment.
Claims16
A method of removing acid gas components from a gas mixture comprising the steps of:
- bringing the gas mixture into contact with a liquid including a solvent or reagent for the acid gas components;
- subjecting the gas mixture and liquid to turbulent mixing conditions thereby causing the acid gases to be absorbed by the solvent or reagent;
- and separating a gas phase and a liquid phase in which the mixing is conducted in a turbulent contactor including a gas inlet, a liquid inlet, an outlet leading to a venturi passage and a tube extending from the outlet back upstream, in which the tube is perforated, spaced from the periphery of the outlet or both perforated and spaced from the periphery of the outlet.
Dependencies are inferred from the claim text.