What type of combustion process is used for burning pulverized coal?

The combustion process used for burning pulverized coal is known as suspension burning. In this method, pulverized coal is finely ground and suspended in the combustion air, allowing it to ignite and burn quickly and efficiently. This suspension of coal particles in the air leads to a higher surface area for combustion, promoting more complete and rapid burning compared to other methods.

Suspension burning is particularly advantageous in high-pressure boiler applications because it allows for better control over the combustion process, resulting in more efficient heat transfer and reduced emissions. The finely divided coal particles can also achieve high combustion temperatures, thereby maximizing energy output.

This technique is frequently employed in modern power plants that utilize coal as a fuel source due to its effectiveness in converting coal to energy efficiently while minimizing unburned carbon emissions.