Problems on Module IV [Mass Transfer - I: PCMT 405] Semester IV: 4 Yr. B.Tech. 2022 Problems on Batch Distillation & Flash Distillation [1] A solution containing 50 moles of benzene and 50 moles of toluene is batch distilled at a constant pressure until such time that only 50 moles of liquid is left. Determine the composition of the liquid residue at the completion of the distillation process. 0.116 0.24 Equilibrium Data for Benzene 0.541 0.747 0.228 0.336 0.533 0.44 0.639 0.734 0.875 0.825 0.914 0.965 y 0.418 0.66 0.817 0.924

Summarize your answers in the table provided. Attach a legible and answer sheet upon submission. Points may not be given to any item without a clea unless it is not necessary. Answers with erasures will not be considered. PROBLEM 6.1. Production of Trichloroethylene Trichloroethylene, a widely used degreasing solvent for machine parts, is produced in a two-step reaction sequence. Ethylene is first chlorinated to yield terachloroethane, which is dehydrochlorinated to form trichloroethyle. C₂H4(g) + 2 Cl2(g) → C₂H₂C14(1) + H₂(g) (AH)1=-385.76 kJ/mol C₂H2C14(1)→ C2HCl3(1) + HCl(g) gladins The standard heat of formation of liquid trichloroethylene is -276.2 kJ/mol. Reaction 1: Reaction 2: (W) Enthalpy Values and Standard Heats of Reaction Component AH (kJ/mol) C₂H4(g) Cl₂(g) H₂(g) HCl(g) C₂H₂C14(1) C₂HCl3 (1) Q (kW) Reaction Reaction 1 Reaction 2 (VD) TUO Hn lato T (WA) veisdial (lom\34) H dom) a Assuming W, APE, and AKE are negligible, determine the amount of heat (Q) evolved if 300 mol/h…

A binary distillation is performed so that a distillate 94% and bottoms 8% in of the more volatile Component A results. The process shown below reflects one operating condition of a feed stream. Rectification, Stripping and the q-line are all provided on the x-y diagram below. Aling with expected stage for the distillation.. What is temperature of the liquid stream leaving the reboiler? What is the temperature of the vapor stream leaving the feed stage? What is the temperature of the liquid stream leaving stage 2? What is the temperature of the liquid reflux returned to the column? Note: A total condensor is installed.

Write a technical report in no more than five pages on Potash processing using hot leach process and cold crystallization process as: 1- Describe the impact of the following on the hot leach process: a. solar pans, mother liquor loop, how does crystallization of KCI occur in this plant and what happens to the pressure in these crystallizers. 2- Describe the technical operations in each step of the cold crystallization. 3- Compare both processes in terms advantages and disadvantages.