Hello guys, I hope you all are fine and doing great.
I need some guidance regarding modelling packed bed distillation column in Aspen Hysys. For instance I am consider only one packed bed column.
Its a propane recovery unit. The propane is recovered from LPG. In whole unit, there are two packed bed distillation column. I know the height of bed in both column as well as type and size of random ceramic rashing rings. The HETP used is 0.4 m for random packing. The reflux drum pressure and bottom pressure is known. The feed temperature is know only. The composition of LPG is know. Currently, de-ethanizer is packed column with reflux reflux mode. It is equipped with stab in reboiler.
How can I know the feed location ? I can convert bed height into no of trays, but how I can locate feed stage ? I have all temperature of column which are bottom temperature, top temperature of stream entering to condenser and as well as reflux temperature.