skip all navigation
skip banner links
skip primary navigation

Fly Ash From a Coal Fired Power Plant

Full-sized version of banner image

Secondary Electron Image

© New Mexico Bureau of Geology and Mineral Resources

About this image

Fly ash is one byproduct of the coal combustion process and represents part of the inorganic material in coal. The amount of fly ash produced varies from 65-85% of the total byproduct, depending on the method of combustion. Fly ash is made up of molten minerals, such as clay, quartz and feldspar that solidify in the moving air stream leaving the combustion chamber. This moving airstream around the molten material helps to give most (>60%) fly ash particles their spherical shape. Electrostatic or mechanical precipitators collect fly ash, which can be up to 97% efficient. Fly ash ranges in size from >0-44μm.

[See more information related to this image...]

Image posted: 12-17-2021