The dry tray pressure drop behaviors in trays without downcomer with different inclination of holes (standard, 75°, 60° and 45°) thickness (2.5, 5, 10 mm) are investigated. investigated using computational fluid dynamics (CFD) Ansys Fluent® software. 20 °C air was used to represent the gas phase 20–50 m3/h flow rates. column there four 7 mm hole diameter.The CFD results determined that higher a...