What are the key control points of a distillation system?
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I would like to ask what are the key control points for a distillation system?
The mixed oil and gas fed into the reactor is separated into fractions such as rich gas, crude gasoline, light diesel, heavy diesel, reprocessed oil, and slurry, based on their boiling range, ensuring that the quality of each product meets the specified requirements. The key points of operation are: maintaining stable liquid levels throughout, controlling the reflux temperature at each stage, adjusting the heat balance appropriately, ensuring smooth operation, and thus producing qualified products.
First, it is necessary to understand what the main task of distillation is: it is to control the quality of the products, that is, the quality of gasoline and diesel. This requires proper control of the operational parameters that affect these qualities, especially the temperature at the top of the tower and the temperature at which diesel is extracted. It also involves maintaining a proper thermal balance throughout the tower as well as ensuring an appropriate distribution of heat across different sections of the tower.
Adjust the reflux of each extraction line according to the process parameters; controlling the liquid level is key
Control the quality of diesel and gasoline, maintain the liquid level at the bottom of the tower and the temperature at the top of the tower, stabilize various reflux streams, and also manage properly the diesel stripping tower and the overhead gas separator. . .