Aspen simulation for flue gas denitration and desulfurization

2017-05-17View Original

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** ERROR WHILE GENERATING RESULTS FOR UNIT OPERATIONS BLOCK: “E0102” (MODEL: “HEATX”). An internal temperature crossover was detected at the boundary of Zone 2; the temperature of the hot stream is 482.1103°C, while the temperature of the cold stream is 485.5825°C. How can this issue be resolved in Aspen simulations? **ERROR: Temperature crossover detected; recalculation is being performed using the minimum allowable temperature difference.** What causes this error? This heat exchanger is used to cool flue gas with a temperature of 350°C down to 150°C; the pressure of the flue gas is 150 kPa, while the coolant is water at 25°C and 2 Mpa pressure. Why does such a design lead to the errors mentioned above? I seek guidance from experts. .

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Aspen simulation for flue gas denitration and desulfurization

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