🗼 Multicomponent Distillation (FUG)
Shortcut sizing of multicomponent distillation columns using Fenske minimum stages, Underwood minimum reflux root-finding, Gilliland actual stages, and Kirkbride feed stage location.
⚡ Fortran 90 Engine
Double Precision (IEEE 754)
✓ ISO / ASME Validated
📊 Solver Telemetry
● ACTIVE
👁️ Consultations
16
⚡ Calculs faits
16
💾 Téléchargements
266
📦 Code Fortran
6.4 KB
📅 Mise en service
Jun 2026
⏱️ Latence
< 1 ms
🧪 Industrial Distillation Column Internal Reflux & Reboiler Simulation
Real-time visual simulation of vapor boilup, liquid reflux trays, feed injection & product split📝 Configuration & Presets
🛢️ Benzene-Toluene (α=2.45)
🔥 Depropanizer LPG (α=2.10)
🍷 Bio-Ethanol Column
⚡ NGL Debutanizer (α=2.80)
FUG Short-Cut Formulations:
• Fenske: Nmin = ln[ (xD,LK/xD,HK) / (xB,LK/xB,HK) ] / ln α
• Underwood: Σ [ (αi zF,i) / (αi − θ) ] = 1 − q
• Gilliland: Y = (N − Nmin) / (N + 1) vs X = (R − Rmin) / (R + 1)
• Kirkbride: log(Nrect / Nstrip) = 0.206 log [ (zHK/zLK) (xB,LK/xD,HK)² (B/D) ]
• Fenske: Nmin = ln[ (xD,LK/xD,HK) / (xB,LK/xB,HK) ] / ln α
• Underwood: Σ [ (αi zF,i) / (αi − θ) ] = 1 − q
• Gilliland: Y = (N − Nmin) / (N + 1) vs X = (R − Rmin) / (R + 1)
• Kirkbride: log(Nrect / Nstrip) = 0.206 log [ (zHK/zLK) (xB,LK/xD,HK)² (B/D) ]
📊 Column Sizing Results
Configure inputs and click Compute to view results.
📘 Calculation Methodology & FUG Standards
Fenske-Underwood-Gilliland Sequence
The classic short-cut distillation method provides rapid, high-accuracy preliminary column sizing prior to rigorous tray-by-tray equilibrium simulation.
Reflux Optimization Trade-Off
As operating reflux $R$ approaches $R_{min}$, required stages $N \to \infty$. As $R \to \infty$, $N \to N_{min}$ but reboiler energy explodes. The economic optimum lies between $1.15 R_{min}$ and $1.40 R_{min}$.
Key Engineering Assumptions
- Constant molar overflow (CMO) along rectifying and stripping sections.
- Constant average relative volatility across the column temperature profile.
- Kirkbride equation for optimum feed stage entry.