What are the temperature and time parameters for water separation during the cyclic heating process of the distillation system at the start-up of diesel hydrogenation? Is location required?
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What are the temperature and time parameters for water separation during the cyclic heating process of the distillation system at the start-up of diesel hydrogenation? Is location required? I seek guidance from seniors
Depending on the layout of the installation, during cold oil circulation, drainage can also be carried out at the lowest point of the equipment. As the temperature rises gradually during hot oil circulation, water separation should take place at the points where condensation occurs, such as on the return lines or the condenser lines! Generally, the water cutting is done based on the amount of water to be cut; if more water needs to be cut, the process takes longer, and vice versa. The water can be changed every four hours in a cycle! The specific situation needs to be analyzed on a case-by-case basis; the key factor is the presence of water in the oil!
When no feed is supplied to the reaction system, refined diesel or regular diesel should be introduced into the distillation unit to activate the internal distillation circulation. Dehydration is necessary during cyclic heating; in our case, it is carried out at the backwash point in the pump area
Cut off water according to the heating and constant-temperature stages