# 8 a stripping section operating line is drawn that

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: he partial reboiler, and 13.8 equilibrium stages in the rectifying section. Analysis: (a) (continued) Exercise 7.51 (continued) Exercise 7.51 (continued) Analysis: (a) (continued) Exercise 7.51 (continued) Analysis: (a) (continued) Exercise 7.51 (continued) Analysis: (continued) (b) Because the value of HOG is given in part (d), calculate NOG for each section, using from Table 6.7 for EM diffusion, N OG = dy y -y * For the stripping section, the first stage is the partial reboiler. Therefore, from the McCabeThiele diagram, starting from Stage 2, the limits on y are y = 0.09 at x = 0.03 to y = 0.37 at x = 0.10. Using the trapezoidal method to solve the integral, ( NOG )SS = y (0.23 - 0.09) (0.37 - 0.23) = + = 2.4 0.10 0.14 ( y *- y) For the rectifying section, the limits on y are y = 0.37 at x = 0.1 to y = 0.80. Using the trapezoidal method to solve the integral, ( NOG ) RS = y (0.42 - 0.37) (0.665 - 0.42) ( 0.80 - 0.665 ) = + + = 12.4 0.084 0.063 0.017 ( y *-y) (c) For 15.8 equilibrium sta...
View Full Document

## This note was uploaded on 09/08/2008 for the course CHE 244 taught by Professor Selebi during the Spring '06 term at Lehigh University .

Ask a homework question - tutors are online