Temperature difference between top and bottom of the stripping tower
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The low-pressure solvent recovery used in our leaching unit relies on the stripping method to remove a small amount of liquefied gas from the deasphalted oil; however, its effectiveness has been poor recently. How is the temperature difference between the top and bottom of the stripping tower created? What is a good difference between the top and bottom temperatures?
1. The evaporation temperature in the pre-evaporation section has decreased, resulting in poor evaporation efficiency. 2. The temperature of the gas entering the tower has dropped. 3. The temperature of the gas vapor is low or it contains condensate.
The temperature of the stripping steam remained unchanged at 480°C, and the feed temperature also stayed the same at 210°C. Only the amount of steam was adjusted, increased by 0.1 ton. Could this have any impact?