Activated carbon is commonly utilized for denitrification and desulphurization purposes, where the key component of the process is an adsorber with super adsorption. This process employs the adsorption and catalytic properties of activated carbon to remove SO2 from the flue gas. The SO2 is oxidized to SO3 and then dissolved in water to produce a dilute sulphuric acid aerosol which is subsequently removed by the activated carbon. The activated carbon is capable of removing SO2, NOx, and dust simultaneously at near room temperature with removal rates of over 98% for SO2 and over 80% for NOx, resulting in a final dust content of 20mg/m3 in the flue gas exiting the absorption tower.

Advantages:

● High SO3 removal rate and removal of hydrocarbons from the exhaust gas

● Produces a saleable by-product and can effectively resource sulphur.

● The adsorbent can be recycled, the investment is small the process is simple, the operation is easy and the NOx in the exhaust gas can be recycled.