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Flue gas treatment system

Views: 3     Author: Xicheng EP LTD     Publish Time: 2023-04-14      Origin: Xicheng EP LTD

Flue gas treatment system is an essential component of many industrial processes, including power generation, cement production, and waste incineration. The primary purpose of this system is to remove harmful pollutants and contaminants from the flue gas before it is released into the environment.


The composition of flue gas can vary significantly depending on the type of fuel used, the combustion process, and other factors. However, some common pollutants found in flue gas include sulfur dioxide (SO2), nitrogen oxides (NOx), particulate matter, carbon monoxide (CO), and volatile organic compounds (VOCs).

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To effectively remove these pollutants, a flue gas treatment system typically consists of several different components. The specific configuration and design of the system may vary depending on the specific needs of the process and the pollutants present in the flue gas. 


Some common components of a flue gas treatment system include:


Electrostatic precipitator (ESP)

ESP is a device that uses an electrostatic charge to remove particulate matter from flue gas. The flue gas is passed through a series of charged plates, which attract and collect the particulate matter. The collected particles are then removed from the plates and disposed of.


Wet Scrubber

Wet Scrubber is a device that uses a liquid solution to remove pollutants from flue gas. The flue gas is passed through the scrubber, where it comes into contact with the liquid solution. The solution reacts with the pollutants and removes them from the gas stream. The solution is then collected and treated to remove the pollutants before it is reused.

Selective catalytic reduction (SCR)

SCR system uses a catalyst to convert nitrogen oxides (NOx) into nitrogen and water vapor. The flue gas is passed through a reactor, where it comes into contact with the catalyst. The catalyst promotes a chemical reaction that converts the NOx into harmless nitrogen and water vapor.


Activated carbon injection (ACI)

ACI system uses activated carbon to adsorb pollutants from flue gas. The activated carbon is injected into the flue gas stream, where it adsorbs the pollutants. The carbon is then collected and disposed of, or regenerated for reuse.


Flue gas desulfurization (FGD)

FGD system is used to remove sulfur dioxide (SO2) from flue gas. The flue gas is passed through a scrubber, where it comes into contact with a liquid solution. The solution reacts with the SO2 and removes it from the gas stream. The solution is then collected and treated to remove the sulfur before it is reused.


Baghouse

Baghouse is a device that uses fabric bags to filter particulate matter from flue gas. The flue gas is passed through a series of fabric bags, which collect the particulate matter. The collected particles are then removed from the bags and disposed of.


Wet electrostatic precipitator (WESP)

WESP is a device that uses an electrostatic charge and a liquid solution to remove pollutants from flue gas. The flue gas is passed through a series of charged plates, which attract and collect the pollutants. The collected pollutants are then removed from the plates and collected in a liquid solution. The solution is then treated to remove the pollutants before it is reused.

water scrubber system

In addition to these components, flue gas treatment system may also include monitoring and control systems to ensure the proper operation of the system and compliance with regulatory requirements.


Flue gas treatment system is an essential component of many industrial processes. By removing harmful pollutants from flue gas before it is released into the environment, these systems help to protect public health and the environment while also ensuring compliance with regulatory requirements.

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