The diagram illustrates information about the distinct stages involved in the system of producing clean energy from coal.
Overall, this is a man-made linear process, which requires a type of fossil fuel, named coal, to manufacture a product for use in the energy sector. There are several steps, beginning with transporting coal to the gathering area and finishing with the generation of electricity.
Initially, after being relocated to the assembly area, coal is introduced into a furnace where it reacts with oxygen to generate raw syngas. Concurrently, slag is formed as a byproduct. Following the generation of raw syngas, it undergoes a purification process to eliminate harmful substances such as CO2, Mercury, and Sulphur, resulting in the production of purified syngas. This purified syngas is then employed to operate a gas turbine, which is linked to another generator so as to create electrical energy.
However, the process also discharges the second product in the form of excess hot gases. Then, these exhaust gases are directed through a heat recovery steam generator, releasing flue gases into the atmosphere, to produce steam, which subsequently drives a steam turbine. The rotational motion of the steam turbine is utilised to drive a generator that converts mechanical energy into additional electricity production.