solve it manually with details (((((((don't solve using McCabe-Thilie))))))

Q2) 1kgmo/s is fed to depropanizer column with 95% I-butane in the feed to be recovered in the bottom and bottom stream must contain no more than 0.1% propane. Assume the feed is saturated liquid at 285K and 700kPa with the following data Assume vapor is ideal gas and the liquid density is 570kg/m3 and surface tension is 10 dyne /cm,80% flooding and 15% down comer area. Tray spacing is 24 in. Assume liquid and vapor molecular weight is the same. Assume R/Rmin=1.5 log10P( in mmHg) =AB/(T( in K)+C) Estimate a) Reflux ratio b) Number of stages c) Feed location d) Column diameter, m (50pts)