A mixture containing of heptane (C6H6) and octane (C7H8) consisting of 60 mole percent of octane...

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A mixture containing of heptane (C6H6) and octane (C7H8) consisting of 60 mole percent of octane and 40 mole percent heptane and to give a distillate product of 4 mole percent octane and bottom product containing 5 mole percent heptane. Feed is a mixture of one- third liquid and two-third vapor. Given relative volatility is 2.5 and molecular weight for heptane and octane are 78 kg/kmol and 92 kg/kmol respectively. Refer to appendix sheet to find the correct formula. XA YA Based on Table 1, i. 0.1 0.2 0.217 0.385 YAI 0.3 0.4 0.5 YA2 Table 1 0.6 YA3 0.789 Determine YAL, YA2 and YA3. (6 marks) Find out the number of stages needed if reflux ratio is 3.1. 0.7 0.8 0.9 1.0 0.854 0.909 0.957 1.0 (9 marks) A mixture containing of heptane (C6H6) and octane (C7H8) consisting of 60 mole percent of octane and 40 mole percent heptane and to give a distillate product of 4 mole percent octane and bottom product containing 5 mole percent heptane. Feed is a mixture of one- third liquid and two-third vapor. Given relative volatility is 2.5 and molecular weight for heptane and octane are 78 kg/kmol and 92 kg/kmol respectively. Refer to appendix sheet to find the correct formula. XA YA Based on Table 1, i. 0.1 0.2 0.217 0.385 YAI 0.3 0.4 0.5 YA2 Table 1 0.6 YA3 0.789 Determine YAL, YA2 and YA3. (6 marks) Find out the number of stages needed if reflux ratio is 3.1. 0.7 0.8 0.9 1.0 0.854 0.909 0.957 1.0 (9 marks)

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