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(Daily Question) Coal-to-oil and olefins forum, 2017.12.31

2017-12-31View Original

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3.jpg Participation: Prize of 5 Wealth; Correct answer: Reward of 10 wealth points ; Note: This post is valid for 48 hours. Question: In the dryer of the (DMTO) olefin separation unit, why is the outlet temperature lower than the inlet temperature during cold blowing? : Since nitrogen or methane is used for cold blowing in the dryer to vaporize and desorb the liquid on the surface of the drying gas, and both vaporization and desorption are endothermic processes, the outlet temperature of the dryer is lower than the inlet temperature! Note: The answers will be announced automatically in two days!
Reply #22018-01-01
Since nitrogen or methane is used for cold blowing in the dryer to vaporize and desorb the liquid on the surface of the drying gas, and both vaporization and desorption are endothermic processes, the outlet temperature of the dryer is lower than the inlet temperature!
Reply #32018-01-01
Since nitrogen or methane is used for cold blowing in the dryer to vaporize and desorb the liquid on the surface of the drying gas, and both vaporization and desorption are endothermic processes, the outlet temperature of the dryer is lower than the inlet temperature!
Reply #42018-01-01
Since nitrogen or methane is used for cold blowing in the dryer to vaporize and desorb the liquid on the surface of the drying gas, and both vaporization and desorption are endothermic processes, the outlet temperature of the dryer is lower than the inlet temperature!
Reply #52018-01-01
Since nitrogen or methane is used for cold blowing in the dryer to vaporize and desorb the liquid on the surface of the drying gas, and both vaporization and desorption are endothermic processes, the outlet temperature of the dryer is lower than the inlet temperature!
Reply #62018-01-01
Since nitrogen or methane is used for cold blowing in the dryer to vaporize and desorb the liquid on the surface of the drying gas, and both vaporization and desorption are endothermic processes, the outlet temperature of the dryer is lower than the inlet temperature!
Reply #72018-01-01
During cold blowing, the inlet temperature is higher than the outlet temperature, because the residual liquid phase at the bottom of the dryer absorbs heat and evaporates.
Reply #82018-01-01
Since nitrogen or methane is used for cold blowing in the dryer to vaporize and desorb the liquid on the surface of the drying gas, and both vaporization and desorption are endothermic processes, the outlet temperature of the dryer is lower than the inlet temperature
Reply #92018-01-01
Since nitrogen or methane is used for cold blowing in the dryer to vaporize and desorb the liquid on the surface of the drying gas, and both vaporization and desorption are endothermic processes, the outlet temperature of the dryer is lower than the inlet temperature!
Reply #102018-01-01
Since nitrogen or methane is used for cold blowing in the dryer to vaporize and desorb the liquid on the surface of the drying gas, and both vaporization and desorption are endothermic processes, the outlet temperature of the dryer is lower than the inlet temperature!
Reply #112018-01-01
During cold blowing, the outlet temperature first rises and then falls, reaching a peak value during cold blowing; therefore, it is incorrect to say that the outlet temperature is lower than the inlet temperature

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