Mass Transfer

Table. Operating of a flash drum:

Feed Composition mole %:

- 34 n- ethane

- 66 n- pentane

m: 429,988 kg/hr

T: 39 C

P: 861 kpa

Problem 2. We wish to flash distill a feed consisting of ethane and n-pentane. The drum operates Paum kPa and TarumC. Feed flow rate is mi, kg/hr. Table. Operating conditions of a flash drum Feed Composition. a. Find V/F. V. L, liquid mole fractions, and vapor mole fractions. b. Find the diameter and height of a vertical flash drum. Assume the vapor is an ideal gas to calculate vapor densities. Use the McWilliams equations shown in Equation 2-30 and Table 2-3 for K values. Arbitrarily pick hut/D-4 MWcthane = 30.07. MW pentue = 72.15, Liquid densitites: Pethane =0.54 g/ml (estimated). PPentane -0.63 g/ml