For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in_____________________?
Correct answer: A. Increased economy
- A. Increased economy
- B. Decreased economy
- C. Lower capacity
- D. No effect on economy
Explanation
In backward feeding, the concentrated, viscous liquor enters the hottest effect, where the high temperature lowers its viscosity and improves boiling and heat transfer. This arrangement generally increases steam economy for a cold dilute feed producing a thick liquor.
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