The pressure in the stabilizer tower is excessively high – how can product quality be ensured?
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These past few days, the weather has been hot with high temperatures. The system pressure remains very high; all air cooling and cooling water systems are in use, yet the temperature reduction is not satisfactory. Previously, the temperature at the top of the tower was 55°C; it is now 60°C. As for the pressure at the top of the tower, it was 0.95 MPa before, while it is now 1.15 MPa. The relief valve setting pressure is 1.21 MPa, and there are no C2 components in the liquefied gas. How to increase the cold reflux results in a higher tower pressure and greater heat removal at the tower bottom.
Lower the bottom temperature of the tower by a bit (2°C), and lower the reflux rate as well; give it a try.
1. Implement backwashing for water cooling to improve cooling efficiency! 2. High pressure means the reflux level keeps rising!
To ensure the vapor pressure of gasoline, lower the bottom temperature of the tower and reduce the reflux
Where are you from? No way, what’s the temperature even now? Well, if it gets to August or September, then it won’t be possible to carry out the operations. 1. As mentioned above, is there a backwash butterfly valve installed on the water cooler? ? ? If you perform backwashing by yourself, the cooling effect will be better ； 2. The temperature of the absorbents used for crude gasoline and stabilized gasoline can be appropriately reduced, which can help alleviate the situation ； 3. Slightly reduce the bottom temperature of the tower, but not by too much, while still ensuring the quality of the stable gasoline product. 4. It’s also necessary to test your liquefied gas and dry gas components to see if there is excessive absorption ? ? ? Is the parsing effect not very satisfactory? ? ? ? ? ? ? ? ? ? ? ? ? ?
In addition to what the experts upstairs mentioned, it’s also possible that the air-cooling pipelines are scaling, which reduces the cooling efficiency. Another possibility is to look for the root cause in the reaction process – perhaps the product distribution is unreasonable, or the absorption process is operating under excessive load
Analyze the C5 content in liquefied gas, and reduce the bottom temperature based on the C5 content. Try to reduce the reflux temperature as much as possible.
What is the C5 content in liquefied gas? Ensure compliance by appropriately reducing the bottom temperature of the tower; water cooling and air cooling should be flushed