Coal quality after processing is determined by a few factors, including:
• Sulfur content : Coal with high sulfur content produces more sulfur dioxide when burned, which can contribute to air pollution and acid rain (Which Country Coal Is Best Quality?, 2024).
• Moisture content is a measure of how much water is present in the coal. High moisture content can make coal more difficult to burn thereby reducing its heating value.
• Ash content is a measure of how much non-combustible material, such as rock and dirt, is present in the coal. High ash content can make coal more difficult to burn. Less residue after combustion, indicates a higher efficiency and less equipment wear.
• Heating value of coal is a measure of how much energy it contains per unit of weight. The higher the energy released during combustion, the better the coal quality.
Which coal quality factor do you think is most overlooked in processing? Please share your insights in the comments
References:
https://www.oftrb.com/archives/11661
