Can the mercury in the flue be removed with coconut shell activated carbon?


Activated carbon adsorption to remove elemental mercury in flue gas is an extended application of coconut shell activated carbon adsorption materials.

Can the mercury in the flue be removed with coconut shell activated carbon?
Activated carbon adsorption to remove elemental mercury in flue gas is an extended application of coconut shell activated carbon adsorption materials. Because activated carbon has a rich pore structure, it can absorb mercury and store it. Mercury is a very dangerous pollutant, especially mercury vapor. Although the concentration of mercury in coal is very low, a large amount of mercury is emitted into the atmosphere from coal-fired power plants every year.
Due to the different operating conditions between coal seams and the production site, the smoke contains various forms of mercury. The types of mercury in cigarettes can be divided into three forms: mercury, oxidized mercury and particle-bound mercury. Oxidized mercury and particulate combined mercury in these substances can be removed by wet smoke desulfurization or dust removal systems (fabric filters and electrostatic precipitators). However, mercury accounts for more than 75% of the total mercury. Due to its stability, high volatility, and water solubility, it is difficult to remove by existing air pollution control devices.
In order to improve the mercury adsorption capacity of coconut shell activated carbon, chemical substances such as sulfur, halogen, transition metal oxide and other highly compatible chemicals are used to strengthen the treatment of coconut shell activated carbon. Due to the improvement of its oxidation capacity and chemical adsorption capacity, the activated carbon absorbs mercury. Provides a good removal effect.