Chlorine minimum energy requirement

Faraday s law states that 96,487 coulombs (1 C = 1 A-s) are required to produce one gram equivalent weight of the electrochemical reaction product. This relationship determines the minimum energy requirement for chlorine and caustic production in terms of kiloampere hours per ton of CI2 or NaOH... 

The first ionization energy is the minimum energy per mole required to remove electrons from one mole of isolated gaseous atoms to form one mole of gaseous unipositive ions under standard thermodynamic conditions. For example, the first ionization energy of chlorine is the energy required to bring about the reaction ... 

Gas recycle wastes energy and requires that the machinery be designed for more than the net process flow. The minimum practical amount of recycle is desirable from the standpoint of process efficiency. In chlorine processing, however, safety and process stability perhaps should be given more weight than in many other applications. Most systems have a constant recycle of up to 10% of throughput. 

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