Patent ID: 7153481
Filing Date: 2006-12-26
Classification: B01D

Abstract:
1. A method of separating by means of an aqueous absorption liquid sulphur dioxide from a gas containing sulphur dioxide, said method comprising the steps of: a. passing the gas containing sulphur dioxide through a contact zone; b. mixing the gas containing sulphur dioxide with a liquid flowing out of an outlet box while the gas containing sulphur dioxide is passing through the contact zone; c. then passing the gas containing sulphur dioxide upwards through an essentially horizontal apertured plate arranged beside the outlet box and having a flowing layer of the aqueous absorption liquid provided thereon; d. feeding a coolant flow to the outlet box so that the coolant flow passes therethrough and flows out into the contact zone; and e. feeding to the essentially horizontal apertured plate an absorption liquid flow that is essentially independent of the coolant flow so that the flowing layer of the aqueous absorption liquid provided on the essentially horizontal apertured plate is thereby formed by the absorption liquid flow and is operative to effect the separation of sulphur dioxide from the gas containing sulphur dioxide.