Main-Product

Description

Ash or Ashes are the solid remnants of fires. Specifically, Ash refers to all non-aqueous, non-gaseous residues that remain after something burns. In analytical chemistry, to analyse the mineral and metal content of chemical samples, ash is the non-gaseous, non-liquid residue after complete combustion.

Ashes as the end product of incomplete combustion are mostly mineral, but usually still contain an amount of combustible organic or other oxidizable residues. The best-known type of ash is wood ash, as a product of wood combustion in campfires, fireplaces, etc. The darker the wood ashes, the higher the content of remaining charcoal from incomplete combustion. The ashes are of different types. Some ashes contain natural compounds that make soil fertile. Others have chemical compounds that can be toxic but may break up in soil from chemical changes and microorganism activity.

Boiler ash is the byproduct of burning solid fuel in industrial boilers or incinerators like coal, wood, biomass, waste materials. It comes in two types: bottom ash and fly ash. Bottom ash is the heavier particles that settle at the bottom of the combustion chamber, while fly ash is the lighter particles carried out with the exhaust gases. Bottom ash is a coarse, granular by-product, while fly ash is a fine powder collected with flue gases. The type of ash impacts asset performance, affecting combustion, heat transfer, and emissions.

References

1. Wikipedia, Ash.
2. adapted from: Winno Energy, Managing Ash in Industrial Boilers Made Easy.