Structured Packing HETP & Pressure Drop Calculator
Calculate Height Equivalent to a Theoretical Plate (HETP in mm), specific dry and irrigated pressure drop (mbar/m), and capacity limit per Sulzer / Koch-Glitsch standards.
Packing Type & Operating Gas
Packing Efficiency & Pressure Loss
Recommended Tools & Equipment
Tested hardware and components for high reliability
Frequently Asked Questions
Why is structured packing preferred over trays in vacuum distillation?
Structured packing exhibits extraordinarily low pressure drop per theoretical stage (~0.3 to 1.0 mbar/stage vs 4 to 8 mbar/stage for trays). This minimizes bottoms reboiler temperature, preventing thermal decomposition of temperature-sensitive chemicals.
What does the "Y" and "X" designation mean in structured packing?
Y-packing has corrugated sheets angled at 45° to the vertical axis (standard compromise between capacity and efficiency); X-packing has sheets angled at 60° (providing lower pressure drop and higher capacity at slightly reduced efficiency).
What is the maximum bed height before requiring a liquid redistributor?
To prevent liquid wall-channeling, structured packing beds are limited to maximum continuous heights of 6 meters to 8 meters (or 15 to 20 theoretical stages) between liquid collection and redistribution assemblies.