Which pollutant can be removed by centrifugal separations

Environmental Progress, , 77— Dirgo, J, Leith, D. Aerosol Science and Technology, , 4: — Leith, D, Licht, W. Study of a Novel Uniflow Cyclone Design. Canadian Journal of Chemical Engineering, , — Uniflow Cyclone Efficiency Study. Powder Technology, , — Alden, J L. Design of Industrial Exhaust Systems. Heating and Ventilating, , 48— Industrial and Engineering Chemistry, , 32 9 : — John, W, Reischl, G.

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Download references. University of Illinois, W Pennsylvania Ave. You can also search for this author in PubMed Google Scholar. Reprints and Permissions. Tan, Z. Advances in centrifugal separators for particulate matter control from stationary sources. Download citation. Issue Date : August Anyone you share the following link with will be able to read this content:. Sorry, a shareable link is not currently available for this article.

Provided by the Springer Nature SharedIt content-sharing initiative. Skip to main content. Search SpringerLink Search. More intense chemical methods of separation are generally required to separate polluting gases from the flue gas.

However, this extraction is important as many acidic gases in flue gas contribute to acid rain. Below are some of the basic ways that gases can be extracted. Scrubbers are a type of system that is used to remove harmful materials from industrial exhaust gases before they are released into the environment. These pollutants are generally gaseous, and when scrubbers are used to specifically remove SOx it is referred to as flue gas desulfurization.

There are two main types of scrubbers, wet scrubbers and dry scrubbers. The main difference is in the type of material used to remove the gases. By removing acidic gases from the exhaust before it is released into the sky, scrubbers help prevent the formation of acid rain. Incineration is used to convert VOC emissions into carbon dioxide and water through combustion. The incineration generally takes place in a specialized piece of equipment known as an afterburner, which is built to create the conditions necessary for complete combustion such as sufficient burn time and a high temperature.

Carbon dioxide can theoretically also be captured and stored underground or in forests and oceans to prevent it from entering the atmosphere. Carbon capture and storage refers to the process of capturing this carbon dioxide and storing it below ground, pumping it into geologic layers. This process is rarely being used, but is talked about extensively as a way to limit greenhouse gas emissions leading to climate change. Fossil Fuels.

Nuclear Fuels. There are four types of cyclones, which are classified according to how the gas stream is introduced into the cyclone and how the collected dust is discharged. The four types include: 1 tangential inlet, axial dust outlet; 2 tangential inlet, peripheral dust outlet; 3 axial inlet, axial dust outlet; 4 and axial inlet, peripheral dust outlet. Cyclones and multiclones are susceptible to many operational problems.

The most common problems are erosion of cyclone components that come in contact with high velocity particles, plugging of the dust outlet or the gas inlet vanes, and air inleakage that affects the inlet velocity and collection efficiency of the cyclone. For more information, see the box More About Cyclones.

The primary indicators of cyclone performance are the outlet opacity and inlet velocity. Other indicators of performance are the pressure differential across the cyclone and inlet gas temperature. Diagram of Cyclone Operations. Skip to main content. Contact Us.