Mass and Energy Balance for Column / Utility Confusion

[welikefishnchips]

Hi, I was hoping I could get some help or guidance setting up the mass and energy balance for this column below. I havent had too much practice with columns so just trying to get a good work flow going.

Also, Im getting confused by the utility wording for steam and chilled water. If anyone has experience with condensers and thermosyphon reboilers.

Steam Utility: Steam at 130 psig supply, reduced by owner to 40 psig
Chilled Water: Chilled water supply at 40F with a 10F temperature rise, 45 psig supply pressure (I interpreted this as the chilled water supply at 40F with the return at 50F)

Thank you!

 

[georgeverghese]

So distillate is 1000-7.4= 992.6kg/hr
Do you have distillate and bottoms composition, and stream enthalpies (kJ/kgmole or similar) for each of these streams ?
Have you got the feed composition the right way; should it be 5% wt NMP and 95% wt water? Or is it the overhead distillate that should be be 7.4kg/hr ?