desulphurisation process
A significant environmental technology, desulphurisation processes are used to remove sulphur compounds from industrial gases -- most prominently those generated at power stations and oil refineries. Its main objective is to get rid of airborne pollutants -- particularly releases of sulphur dioxide that is such a serious threat. It is a process that centers on absorption towers (where the gas is treated using an absorbent like limestone, or more usually burned lime) that reacts with SO2 to form gypsum, one of various byproducts which can then be used in construction work. The process is highly efficient: with systems able to achieve removal rates above 90%. Environmental regulation of desulphurization also includes the compliance thereof, cleaner energy production, and protection against health hazards transmitted through outdoor air pollution.