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Distillation Columns
Dr. M. Subramanian
Associate Professor
Department of Chemical Engineering
Sri Sivasubramaniya Nadar College of Engineering
Kalavakkam – 603 110, Kanchipuram (Dist)
Tamil Nadu, India
msubbu.in[AT]gmail.com
27-Sep-2011
CH2407 Process Equipment Design II
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(a) Basic Column (b) Multiple feeds and side streams
27-Sep-2011 M Subramanian
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27-Sep-2011 M Subramanian
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27-Sep-2011 M Subramanian
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Liquid Air cold box (Distillation Column). Its exterior is basically a metal casing stuffed with insulating materials such as wool
27-Sep-2011 M Subramanian
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27-Sep-2011 M Subramanian
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27-Sep-2011 M Subramanian
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Distillation column D = 1500 mm H=28000 mm
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Distillation column D = 1400 mm H=34000 mm
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Distillation column D = 1400 mm H=32000 mm
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This sieve tray column, made of nickel alloy, is 10(ft) in diameter and 95(ft) high.
27-Sep-2011 M Subramanian
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27-Sep-2011 M Subramanian
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Sieve Tray
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Bubble-cap Tray
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Valve Tray
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32 Inch Column with tray and downcomer
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27-Sep-2011 M Subramanian
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Sieve plate
Bubble cap
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Perforated Tray
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Bubble-cap in Operation
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Tray Efficiency
η = 100%η = 0%
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Average η per tray = 10%
27-Sep-2011 M Subramanian
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Tray Area
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Tray types by liquid paths
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Tray types by liquid paths (contd.)
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Cross-flow plates are the most common type of plate contactor used in distillation and absorption columns. In a cross-flow plate the liquid flows across the plate and the vapour up through the plate.
27-Sep-2011 M Subramanian
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27-Sep-2011 M Subramanian
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Downcomer - designs
Vertical apron
Inclined apron
Inlet weir
Recessed well
27-Sep-2011 M Subramanian
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27-Sep-2011 M Subramanian
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Sieve tray
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Valve tray
Bubble cap tray
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