coking coal
1. Coal quality: Clean coal is a kind of coal washed (physically or chemically) with high purity and low ash and sulfur content. Generally, it has high calorific value and few impurities. Coking coal is a kind of coal rich in combustible components, which is suitable for coking process.
2. Uses: Clean coal is mainly used in power generation, industry and civil fields. Because of its high purity and high calorific value, it can be widely used for power generation and heat energy supply. Coking coal is mainly used to produce coke in the coking process of metallurgical industry. Coke is an important raw material for iron and steel, which is used for high-temperature ironmaking and steelmaking.
3. Coking characteristics: Coking coal has high reactivity and plasticity, and is suitable for pyrolysis into coke at high temperature. Coke can provide enough heat and act as a reducing agent at high temperature, so that metal oxides can be reduced in the process of ironmaking and steelmaking.
4. Combustion characteristics: Clean coal releases a lot of heat energy during combustion, which is suitable for power generation and heating applications. Although coking coal still contains calorific value after coking, its main purpose is not direct combustion, but to provide high temperature and reductant demand.
Generally speaking, clean coal is suitable for power generation and industrial fields, while coking coal is mainly used in the coking process of metallurgical industry to produce coke as an important raw material for steel.