17CGA002 Stagewise Processes Assignment Answer

17CGA002: Select answers

Q1(i)

Stage 1: X₁ = 0.175; Y₁ = 0.297

Stage 2: X₂ = 0.137; Y₂ = 0.232

Stage 3: X₃ = 0.102; Y₂ = 0.173

Amount extracted: 12.8 kg

Q1(ii)

Stage 1: X₁ = 0.126; Y₁ = 0.214

Stage 2: X₂ = 0.09; Y₂ = 0.153

Stage 3: X₃ = 0.069; Y₃ = 0.064

Amount extracted: 19 kg

Q2 (i)

Stage 1: X₁ = 0.03; Y₁ = 0.17

Q2 (ii)

Stage 1: X₁ = 0.138; Y₁ = 0.31

Stage 2: X₂ = 0.07; Y₂ = 0.23

Stage 3: X₃ = 0.017; Y₃ = 0.106

Q2 (iii)

5 Equilibrium stages

Q3 (ii) 3 Equilibrium stages

Q3 (iii) Minimum solvent flowrate: 0.35 mol hr^-1

Q4 (iii)

R₁ = 27 kg; E₁ = 33 kg; x₁ = 0.27; y₁ = 0.385

R₂ = 23.2 kg; E₂ = 23.8 kg; x₂ = 0.13; y₂ = 0.18

Total 85% extracted