Yasser,

I am more familiar with Aspen Plus so what I am suggesting here may or may not work. Within Aspen plus there is a way to create something called a Pseudo Stream. This is something you can also do with the distillation column, so the stream entering the condenser is the vapor leaving stage 1. You can define that stream as a pseudo-stream, and aspen should allow you to create a stream tag for that new stream which will be shown on the graphic as a stream exiting the column. Once the stream is defined you can then use a transfer block to transfer the compositon and T, P and flow to another stream or you can just copy from the aspen stream report to your new stream. That may be one approach you can try, if the pseudo stream or something equivalent is available in Hysys.

Regards,

Dave

Thanks sir

Can I add steams where there is no input option given as such?

it's simple and just do this change in column subflowsheet, replace default reboiler with a heat exchanger. Note that the solver must be configured with modified hysim io method