Refinery apparatus

A refinery apparatus, comprising:

• a distillation column;
• and
• a reboiler,
• wherein an interior of the distillation column is divided into a bottom region, a middle region, and a top region,
• the bottom region comprises a first region and a second region separated by a partition wall extending from a bottom of the distillation column to have a predetermined height therebetween,
• the distillation column comprises:
• a feed supply port provided at one side of the middle region to supply a feed stream including a material to be refined to the distillation column,
• a first outlet provided below the first region,
• a second outlet provided below the second region and connected to one side of the reboiler, and
• a reflux inlet provided above the second region and connected to the other side of the reboiler, and
• a plurality of trays arranged vertically apart from the partition wall provided in the middle region of the distillation column, wherein one end of a lowest tray among the plurality of trays is opened so as not to contact a side of the distillation column on the first region, and a guide baffle extending downward from one end of the lowest tray to be adjacent to the bottom of the distillation column is provided.