Alstom Technology Limited

Abb Flakt Industri Ab

General Electric Technology Gmbh

Mati Maripuu

Lars-Erik Johansson

Sune Bengtsson

Kjell Nolin

Daniel Per Niklas Persson

Marja Swahn

Leif Lindberg

Lars-Erik Johanson

Methods and systems for the removal of SO2 from waste combustion flue gas are described herein. One such system for removing SOfrom waste combustion flue gas containing SOuses a semi-dry desulfurization system for contacting the flue gas with a solvent moistened absorption material. Thereafter, a recirculated water quench is used for contacting the flue gas with recirculated water at a relatively low pH, followed by a condenser used for contacting the flue gas with a water spray. Additionally, a NaOH supply for supplying NaOH to the condenser and an oxidizing catalyst supply for supplying an oxidizing catalyst to the condenser, are likewise used to produce cleaned flue gas for release to the atmosphere.

Oxidation system and method for cleaning waste combustion flue gas

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

Method and a device for the separation of sulphur dioxide from a gas

Method and device for removing sulphur dioxide from a gas

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Växjö, Sweden

Mati Maripuu