Control of superheated steam in the stripping tower
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In our facility, the superheated steam used in the paraffin stripping tower is heated to around 240 degrees by a furnace; the pressure is controlled at 0.3 MPa, the pressure at the top of the tower is kept at 0.05 MPa, and the temperature at the top of the tower is regulated around 150 degrees. Oil and gas coming from the top of the tower often contain wax. I’m not sure what effective measures can be taken to prevent excessive wax from accumulating there. Should a dehumidification tank be installed for the superheated steam? Thank you
Superheated steam generally does not require a dehumidification tank, while saturated steam does. Wax-related solution: Reduce the bottom temperature of the tower, decrease the amount of stripping steam, and increase the reflux ratio. Last edited by chengkang on 2009-4-2 18:12.]
Superheated steam shouldn’t need a dehumidification tank! Excessive wax on the tower top may be caused by an excessive blowing volume.
Superheated steam does not require a dehumidification tank； Excessive wax on the top of the tower indicates that the steam injection volume is too high; reduce the steam injection volume appropriately and increase the reflux volume.
240 degrees Celsius should correspond to saturated steam, while 310 degrees Celsius indicates superheated steam. Could it be that the gas at the bottom of the tower contains water vapor? It’s also possible that the temperature at the top of the tower is high, the pressure at the top is low, and the temperature at the bottom of the tower is high
Appropriately reduce the amount of stripping steam and increase the tower pressure slightly
Superheated steam does not require a dehumidification tank； Saturated steam requires a dehumidification tank. Excessive wax at the top of the tower indicates that the amount of steam blown in is too high; therefore, the steam flow should be reduced appropriately and the reflux volume increased.
Superheated steam does not require a dehumidifier; if water is present, it’s sufficient to check the vent. 1. The tower pressure can be increased, which can reduce the draw amount! 2. Reducing the amount of stripping steam can also reduce the withdrawal volume! 3. Increase the circulation flow rate at the tower top! 4. Reduce the tower feed temperature! This post was last edited by chengkang on 2009-4-2 18:16]
240 degrees corresponds to saturated steam; the oil and gas at the top of the tower contain wax, which is due to a higher temperature at the tower top or an excessive amount of gas being injected
Further increase the steam temperature, top temperature, and top pressure of the tower.
Thank you all. I think increasing the steam temperature and reducing the amount of steam blown in should solve the problem!