Problems in atmospheric tower operation.
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Help. Does the opening degree of the side stream distillation valve in an atmospheric pressure tower affect the distillation temperature? What is the opening degree of the distillation valve on the side stream of a conventional atmospheric pressure tower? Thank you
The distillation temperature is related to the temperature of the tower, and the temperature of the tower is related to the output volume! Take a simple example: if your side line does not allow external delivery but all the distillation valves are open, then the distillation temperature will not be high either~!
By doing this, the initial boiling point of your oil will not be very low
Generally, the control of the dry point in the side stream is based on the temperature at the distillation outlet; as the valve opening at the distillation outlet increases, the dry point rises, and vice versa； The initial boiling point is determined by the temperature of the gas return line ； Of course, other parameters also have an impact on the dry point of the side line, and a comprehensive analysis is required.
For the side-line distillates, we use control valves to regulate the liquid level in the stripping tower. The opening degree of these control valves is related to factors such as the processing capacity of the plant, product quality, yield control strategies, and the properties of the raw materials; it shouldn’t simply be set to a fixed value.
Yes, the side line valves should be fully open.
Are you referring to the on-site manual valve? Is there no distillate outlet control valve? Normally, it is controlled by the distillation outlet control valve.
Regular first-line dry plates: the oil changes color, how to deal with it?