A method and a device for the separation of sulphur dioxide from a gas.

摘要

A device ( 1 ) for separating sulphur dioxide from a gas has an inlet ( 2 ) for the gas ( 4 ) and an outlet ( 42 ) for gas ( 40 ), from which sulphur dioxide has been separated. An apertured plate ( 20 ) is arranged between the inlet ( 2 ) and the outlet ( 42 ) and allows the gas ( 4 ) to pass from below. On its upper side ( 22 ), the apertured plate supports a flowing layer ( 24 ) of absorption liquid. An inlet duct ( 12 ) connects a container ( 6 ) for absorption liquid to the upper side ( 22 ) of the apertured plate ( 20 ). A means ( 10 ) conveys the absorption liquid ( 8 ) from the container ( 6 ), through the inlet duct ( 12 ), to the upper side ( 22 ) of the apertured plate ( 20 ) and along the apertured plate ( 20 ). The device also has an outlet box ( 30 ) for collecting the absorption liquid ( 8 ) flowing over the apertured plate ( 20 ) and at least one distribution means ( 34 ), which is arranged to contact the gas ( 4 ) which is supplied to the device ( 1 ) through the inlet ( 2 ) with the liquid ( 8 ) flowing from the outlet box ( 30 ) to the container ( 6 ) before the gas ( 4 ) passes through the apertured plate ( 20 ).