Fractionator reflux ratio?
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This post was last edited by Adventure Wang on 2017-1-22 09:31. Is a reflux ratio of 6 for the top of the hydrofining distillation column appropriate? The top temperature is 144, and the product is naphtha. Is it possible to reduce the reflux ratio in order to save energy?
It depends on how precise your product quality control is. The reflux ratio is adjusted while ensuring product quality.
What is the product’s boiling range? The reflux ratio, reflux temperature, top temperature, and top pressure are all factors that influence performance; to save energy, comprehensive adjustments are necessary
A large reflux ratio is beneficial for long-cycle operation and improving product quality
Initial boiling point: 68, final boiling point: 198. The main consideration is whether it is possible to save energy by reducing the reflux at low temperatures. I wonder if it’s possible?
The precision of product quality control is high, and the reflux ratio should be set a bit higher. It is necessary to strike a balance among quality, energy consumption, and output.
Try adjusting it yourself; it should be possible to reduce backflow, lower the top pressure, and decrease the bottom temperature, thereby achieving energy savings.
Study*study*: Is the reflux ratio the ratio of the amount of fluid returned to the amount of fluid processed? Please give your advice
The current temperature at the top of your tower is 144°C; the initial boiling point of naphtha is 68°C, and its final boiling point is 198°C. Based on the final boiling point of the naphtha, it would seem that you should increase rather than decrease the reflux ratio, as a final boiling point of 180°C is appropriate for naphtha. Your current naphtha already contains diesel components, which does not meet the quality standards for naphtha nor the interests of the company (since the price of diesel is much higher than that of naphtha). I’m not sure what the temperature at the bottom of the tower is currently; it is recommended to lower this temperature appropriately, provided that the sulfur content of the product remains within acceptable limits. This approach can help save energy while also ensuring product quality and improving the company’s profitability.
The reflux ratio is not fixed; it depends on a series of factors such as the properties of the material, and it serves as a reference value