The given picture illustrates the method of electricity production with numerous steps which must be followed to generate  electricity.
It is clearly visible that 
this
 process starts with adding coal Linking Words
along with
 oxygen into the furnace, later separates the slag and raw syngas through two different chambers.
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After 
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this
, purified syngas and CO2 , Mercury Sulphur are being removed from raw syngas , and Linking Words
then
 the purified gas is transferred to the gas Linking Words
turbine
 , which is connected to the Use synonyms
generator
.
Use synonyms
Furthermore
, a heat recovery Linking Words
steam
 Use synonyms
generator
 purifies the hot exhaust gases from flue gases, and it converts them into Use synonyms
steam
 before reaching the Use synonyms
steam
 Use synonyms
turbine
 Use synonyms
generator
.
 Use synonyms
At the end
, the Linking Words
steam
 Use synonyms
turbine
 Use synonyms
generator
 and the gas Use synonyms
turbine
 Use synonyms
generator
 transfer the power to a tower , and Use synonyms
this
 step produces the electricityLinking Words