Comparison of Trays/Reflux Data with the Gilliland Correlation

Correlation Y=1-EXP(((1+54.4*X)/(11+117.2*X))*(X-1)/SQRT(X))X=(R-Rm)/(R+1) Y=(N-Nm)/(N+1)

Gilliland Correlation(R-Rm)/(R+1)(N-Nm)/(N+1)

0.01 0.7151521770.015 0.681707587

0.0225 0.6545043730.03375 0.631153124

0.050625 0.6075811580.0759375 0.578788072

0.11390625 0.5397319260.17085938 0.4860376430.25628906 0.4142739210.38443359 0.3216597490.57665039 0.2051820530.86497559 0.060195531

0.95 0.021847294

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Rm Nm1 5

R N (R-Rm)/(R+1) (N-Nm)/(N+1)1.1 30 0.047619048 0.8064516129032261.2 20 0.090909091 0.7142857142857141.4 15 0.166666667 0.6251.8 12 0.285714286 0.5384615384615382.6 6 0.444444444 0.1428571428571432.6 6 0.444444444 0.1428571428571432.6 6 0.444444444 0.1428571428571432.6 6 0.444444444 0.1428571428571432.6 6 0.444444444 0.1428571428571432.6 6 0.444444444 0.142857142857143

0.01 0.1 1

0.01

0.1

1

Trays vs Reflux

Gillilland CorrelationPlant Data

(N-Nm)/(N+1)

(R-R

m)/

(R+

1)