The diagram illustrates the multi-stage process of generating electricity from a specific type of coal.
Overall, the process comprises two main phases: the initial conversion of solid coal into gas, followed by the purification of this gas to produce and distribute electrical power. It is also notable that heat energy and waste heat are released as by-products at several points during the operation.
In the first phase, raw coal is fed into a crusher where it is broken down into smaller pieces. This crushed material is then transported via a mining cart and a truck to a gasifier. Inside this equipment, the coal undergoes a transformation into gas, a chemical process that simultaneously releases heat.
Subsequently, the gas is directed to a cooling facility, during which waste heat is discharged. The cooled gas then flows into a cleaning plant to eliminate impurities. Once purified, the clean gas enters a gas power plant, where it is utilized to generate electricity, emitting further waste heat in the process. Finally, the produced electricity is distributed directly to a factory and transmitted through power lines on pylons to the wider electrical grid.