Component separation system

A component separation system, comprising:

• a first separation unit configured to:
• add a component C to a one-phase mixed component αβ containing a component A and a component B;
• and separate a mixed component αβγ containing the component A, the component B, and the component C, at a temperature T1, into a separated component αγ containing the component A and the component C as a main component and a separated component β containing the component B as a main component;
• and
• a second separation unit configured to change a temperature of the separated component αγ to a temperature T2 to separate the separated component αγ into a separated component α containing the component A as a main component and a separated component γ containing the component C as a main component,
• wherein the component C exhibits a miscible behavior with respect to the component A at the temperature T1 of the mixed component αβγ, exhibits a separation behavior with respect to the component B at the temperature T1 of the mixed component αβγ, and exhibits a separation behavior with respect to the component A at the temperature T2 of the separated component αγ.