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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 diagram illustrates the process of electricity generation using coal.
Overall, electricity is produced through a multi-stage process involving the conversion of coal into gas, which is then used to power both gas and steam turbines.
At the first stage, coal is fed into a furnace together with oxygen, where it is converted into raw syngas while producing slag as a by-product. The raw gas then passes through a removal system, during which harmful substances such as carbon dioxide, mercury and sulphur are eliminated.
Following this, the purified syngas is directed to a gas turbine connected to a generator, producing electricity. In addition, the hot exhaust gases from the gas turbine are transferred to a heat recovery steam generator, where steam is produced. This steam drives a steam turbine linked to another generator, resulting in further electricity production.
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