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1. |
If 100lb of black liquor containing 15lb of solids and 85lb of water is evaporated to 30lb; with a stream economy of 5 it would take 14lb of steam to remove the 70lb of water. The steam economy is about 0.8 per effect. An overall steam economy of the system is ? |
A. | t9-10 |
B. | t4-5 |
C. | t20-25 |
D. | t16-17 |
Answer» C. t20-25 | |