On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in______________________?
Correct answer: C. Increased reflux ratio
- A. Greater degree of separation with a fixed number of trays
- B. Increased reboiler load
- C. Increased reflux ratio
- D. None of these
Explanation
The rectifying-line slope increases when the reflux ratio increases, and the stripping-line slope also rises because the internal liquid and vapour flows increase. Thus, moving toward greater operating-line slopes requires an increased reflux ratio.
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