In Example 10.4, temperatures of the gas and oil, as they pass through the absorber, increase substantially. This limits the extent of absorption. Repeat the calculations with a heat exchanger that removes 500,000 Btu/h from:
(a) Stage 2.
(b) Stage 3.
(c) Stage4.
(d) Stage 5.
How effective is the intercooler? Which stage is the preferred location for the intercooler? Should the duty of the intercooler be increased or decreased assuming that the minimum-stage temperature is 100°F using cooling water? Assume the absorber oil is nC12.