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A binary distillation involving n-hexane (nC6) and toluene is conducted at atmospheric conditions. The mixture enters the column as a vapour-liquid solution (q=0.7) with feed
A binary distillation involving n-hexane (nC6) and toluene is conducted at atmospheric conditions. The mixture enters the column as a vapour-liquid solution (q=0.7) with feed composition (XF) of 0.55. Obtain: i. Number of theoretical stages (N) at the operating reflux assuming: [10 Marks] o Reflux ratio: 1.7; o Molar composition of n-hexane in the bottom of the column: XB=0.20; o Molar composition of n-hexane in the top of the column: xD=0.95; ii. Rectifying section operating line (ROL) equation; [4 Marks] iii. Feed section operating line (q-line) equation. [4 Marks] Given the x6y6 phase diagram: VLE of nC6 and Toluene at 1.00 bar 10 0.8 0.6 Yo of Snipp 0.4 0.2 0.0 0.0 0.2 0.4 06 0.8 10 Xo
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