Column Feed Streams
The tray number for each feed must be supplied in the appropriate entry field next to the feed stream. Any tray may be designated as a feed tray and any number of column feeds are allowed. Only streams which have been connected to the column in the simulation flowsheet appear in this window. For side columns which have been connected, the return streams appear as feed streams.
Feed
The feed stream identifier from the flowsheet in the Main PFD Window.
Tray
Tray number where the feed enters the column.
Additional information
Liquid-liquid extraction columns and distillation columns which do not have a condenser or cooling duty on tray one, e.g., absorbers, reboilers absorbers and cold feed stabilizers, must have a liquid feed to tray one.
Liquid-liquid extraction columns and distillation columns which do not have a reboiler or heat duty on the bottom tray, e.g., absorbers and strippers, must have a light liquid feed to the bottom tray.
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