Question

A superheated vapor feed of 60 mol% more volatile component at 350 oC is introduced on the feed plate maintained at the temperature of 50 oC. Feed flow rate is 1000 kmol/h and the average heat capacities are: CPL = 50 cal/(mol –oC) and CPV = 25 cal/(mol –oC). The latent heat of vaporization is λ = 5000 cal/(mol – oC).

a. What is the slope of the feed line?

b. If a feed to a column is a two-phase feed that is 40 mol% vapor, find the slope of the feed line.

c. If the feed to a column is a subcooled liquid such that 1 mole of vapor is condensed on the feed plate to heat 5 moles of feed to a saturated liquid, what is the slope of the feed line? What is the value of q?

Answer 1