Operation of the distillation tower
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What should the gas phase temperature at the bottommost baffle in the catalytic fractionation tower be set at?
Generally, the temperature in the gas phase is between 375 and 395 degrees, while the bottom temperature is between 350 and 365 degrees. There is no specific specification for the temperature of the zigzag baffles in the gas phase; it should be within the range of the gas phase temperature
Maintain the gas phase temperature between 375 and 395 degrees, with the bottom temperature ranging from 350 to 365 degrees
The gas phase temperature is between 370 and 395 degrees, while the bottom temperature is between 350 and 365 degrees
The gas phase temperature is too low; the light components cannot be completely removed； If it’s too high, there’s a risk of coking at the bottom of the tower
How is the gas phase temperature generally controlled? The upward and downward movement of the slurry is used to control the slurry temperature
Generally, oil slurry is used to generate steam for heat exchange
The first factor is the properties of the raw materials; the second is your process parameters. Generally, the temperature of the oil and gas is taken into consideration, as it affects the vapor phase in the distillation tower. The key parameter to control is the temperature at which the liquid is drawn from the bottom of the tower, which must not exceed 360 degrees
It is generally around 400. This temperature is used to check whether the oil slurry reflux is operating properly; too high a temperature can cause coking of the chevron baffles.
Can’t we determine whether it’s normal or not by checking the gas phase temperature on the chevron baffle?
For the return of oil slurry to the tower, the temperature of the chevron baffle is primarily controlled, while the temperature at the bottom of the tower is controlled for its return there.