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The image is a flow diagram illustrating the process of coal gasification and electricity generation. It starts with coal being input into a furnace, where it reacts with oxygen to create raw syngas. Flue gases are generated as a byproduct and sent through a heat recovery steam generator to create steam, which powers a steam turbine connected to a generator to produce electricity. The raw syngas goes through a removal process to eliminate CO2, Mercury, and Sulphur, resulting in purified syngas. The syngas then powers a gas turbine connected to another generator to produce additional electricity. Byproducts of the process include slag and hot exhaust gases which are depicted as leaving the system. No numerical data points or percentages are provided.
Given the complexity of the image, the above description may not be entirely accurate.
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The picture illustrates the process in which electricity is produced using coal as the primary fuel source.
Overall, the process consists of two main stages, starting with the transformation of coal into purified gas and ending with the generation of electricity through gas and steam turbines.
To begin with, coal is fed into a furnace and burned with oxygen. This process produces raw syngas along with a by-product called slag, which is then removed. Subsequently, the raw syngas undergoes a purification stage to remove some impurities such as CO₂, mercury, and sulfur, resulting in the purified syngas.
In the next stage, the purified syngas enters the gas turbine and drives the generator to produce electricity. From the gas turbine, hot exhaust gases are fed into a heat recovery steam generator to produce steam, while flue gases are released. Then, the steam enters the steam turbine to drive the generator, resulting in the generation of electricity.
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