Vapor splitter and method for adjusting vapor split ratio

A vapor splitter comprising:

• a chimney tray dividing an internal space of a housing into an upper space and a lower space;
• a chimney provided on an upper surface of the chimney tray such that the upper space and the lower space communicate with each other through the chimney;
• a cap including a top plate and a side wall extending from the top plate, the cap being fixed outside the chimney with a distance from the chimney, the cap covering the chimney such that a gas discharge hole is disposed in the side wall such that gas, coming out through a hole formed in an upper end of the chimney, is transferred to the upper space through the gas discharge hole;
• a liquid feeding unit for feeding liquid to the upper space of the housing;
• and
• a liquid discharging unit comprising a flow rate adjustment valve for discharging the liquid out of the upper space of the housing,
• wherein a size of the gas discharge hole is adjusted by adjusting a height of the liquid collected on the chimney tray by using the flow rate adjustment valve.