When a dephlegmator is also used to condense partially the overhead vapour from a distillation column the liquid reflux at its bubble-point

Mass Transfer Mcqs
BILAL KHATTAK0

A.has the same composition as the overhead product
B.is richer in less volatile component than overhead product
C.is richer in more volatile component than overhead product

Related Mcqs:

  1. The slope of operating line in the rectifying section of a distillation column is unity if the reflux ratio is where Rmin = minimum reflux ration
  2. If q is interpreted to be the fraction of the feed stream that is liquid then for saturated vapour feed to a distillation column
  3. In a distillation column the minimum reflux ratio
  4. At minimum reflux ratio the fixed cost of a distillation column is
  5. At minimum reflux ratio the operating cost of a distillation column is
  6. Entrainment in a distillation column
  7. The intercept on y-axis of the operating line for the rectifying section of a distillation column is where L and V are the liquid and vapour rates in the rectifying section taken to be constant over the section
  8. Corrosion in crude distillation unit column overhead system is caused by
  9. If q is interpreted to be the fraction of the feed stream that is liquid then for saturated liquid feed to a distillation column
  10. Most distillation columns are designed for reflux ratios between where Rmin = minimum reflux ratio

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