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This problem concerns a batch distillation at constant reflux ratio. A mixture of A + B is to be distilled in a batch column with

This problem concerns a batch distillation at constant reflux ratio. A mixture of A+B is to be distilled
in a batch column with 3 trays and a total condenser. The VLE data is attached. The reflux ratio is to be
2.4. The initial concentration is xA=0.6. Initially there are 100 moles.
Use the following steps to determine the quantity of product that can be obtained such that (:xD:)=0.9.
a) Select several XD compositions and carefully plot the rectifying lines. Select XD compositions such that
at least one value results in xA>xA0. The diagram will be crowded. Submit your diagram. Optionally
make different plots for each xD.
b Interpolate to find the appropriate xD that would correspond to XAo and use this as the initial point of
the integration. Determine the integration area using the trapezoidal rule to find W and as a
function of xA. Tabulate the results.
c) Interpolate in the table to find the desired D and W and xW such that (:xD:)=0.9. Report the recovery
of A in the distillate as a fraction relative to the initial pot contents.
This problem concerns a batch distillation where xD is maintained constant and reflux ratio is varied.
A mixture of A+B is to be distilled in a batch column with 3 trays and a total condenser. The VLE data is
attached. The initial concentration is xA=0.6. Initially there are 100 moles. Use the following steps to
determine the quantity of product that can be obtained such that xD=0.9 by varying reflux ratio during
distillation to hold xD constant during the batch distillation.
a) Make a sorted table of R vs.xA for xD=0.9 such that the distillation ends when R=5. Select one R such
that xA is slightly above XAo to use for interpolation at xAo in the next part of the problem. Precision
may be best by choosing a y-intercept for the rectifying and line and then calculating the corresponding
R. The highest reflux to be used is R=5. Use care when drawing operating lines and stepping stages. The
diagram will be crowded, include your y-x plot. It is optional to include extra plot copies if you would like
use multiple plots for the various reflux ratios.
b) Interpolate from the table to find the initial value of R that should be used for XAo. Using the
interpolated row as the start of the distillation, add to the table the calculated values for W and D.
Create a plot of R(y axis) vs.D(x axis) such that an operator could adjust R using the quantity of
collected D as a guide during operation. The distillation is to stop when R=5.
c) Report the recovery of A in the distillate as a fraction of the A in the initial pot contents.
Please answer this by drawing it out with the graph please
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