Question

What are the alternative mechanisms of carbon capture? Describe them briefly

Answer 1

Carbon capture is process in which waste carbon dioxide is capture near its large emission sources such as power plants, cement factories. The captured carbon dioxide is depositing into storage point from which carbon dioxide can't re-enter into atmosphere.
This help in maintaining earth temperature , global warming and climate change .

Different mechanisms of carbon capture are as follows:-
1) Post combustion method-
It involves treatment of power plant exhaust with chemicals.
In this method CO2 is separated from the flue gas. Gas is treated with liquid chemical that separates carbon dioxide and carry CO2.

2)Pre combustion method
It is method use before a fuel goes into the combustion
In power plant Coal which undergoes burn is converting into a clean burning gas; after that Carbon dioxide is stripped. Converting of CO2 Ito clean gas is known as coal-gasification.

3)Oxyfuel

Ans:-

Carbon capture-

In this method Coal burns in the atmosphere in presence of higher concentrations of Oxygen. CO2 form in this method is pure as compare other.

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