WSA - Wet Gas Sulphuric Acid

Topsoe’s WSA technology can desulphurise toxic gases from the industry and convert the sulphur into a commercial product – sulphuric acid.

Where is the WSA technology used?

The technology is used at steel plants, in the mining industry and in industries where coal is gasified and converted into synthetic fuels.

WSA and the environment

Sulphur is retrieved from the subsoil where it is bound to for instance minerals, coal and oil. When extracting and applying such resources, the sulphur is released. If the sulphur is released into the atmosphere it will cause large scale pollution such as acid rain.
 
The WSA technology desulphurises the gases and has aided the reduction of acid rain.

Case: WSA in China

Most of Topsoe’s WSA plants in China are sold to the growing steel industry. Coke derived from coal is used for the production of steel. This creates sulphurous gases from which the sulphur can be retrieved and used in the production. In this way production efficiency and environmental conditions in China are improved.