Columns are mass transfer units generally used for the following application

• Distillation
• Gas Absorption
• Solvent Extraction
• Packed Column etc.

• Different types of columns generally manufactured
  by us include
• Bubble Cap Column
• Sieve Tray type Column

Columns of various sizes (up to 5 mts dia * 50 mts height * 50 mm thk) have been manufactured by us. We manufacture columns of different capacities with complex internals like trays with TSR (Tray Support Rings) and bolting bars. We have manufactured and supplied these columns for major petrochemical, refinery and edible oil projects.

Source :- http://triofab.net/distillation-columns.htm

Triofab (India) Private Limited