In actual production, is a reflux ratio of around 10 for the distillation tower acceptable?
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Since I am just a graduate student who has only studied theoretical knowledge and lacks practical experience, what is the appropriate range for the reflux ratio in actual production?
It depends; the reflux ratio of the propylene distillation column is in the teens
It mainly depends on your separation requirements; circuits with a ratio of just over ten are quite common! Generally, when high separation is required, the reflux ratio becomes very large. Of course, if the content of light components is very low, a reflux ratio of several hundred or even several thousand is perfectly fine. Sometimes it seems like the reflux ratio isn’t that important; it feels like the amount of reflux is more useful! :lol
Take a look at the reflux rate; the reflux ratio is a relative value
The actual operating reflux ratio is determined during the design of the distillation column based on the minimum reflux ratio. Depending on the system being used, or on the separation requirements for the same system or variations in the feed composition, the minimum reflux ratio will vary; as a result, the operating reflux ratio also changes. It is not possible to specify a fixed range, but it is generally 1.25 to 2 times the minimum reflux ratio.
The reflux ratio depends on the separation requirements; full reflux provides the best separation results, but it must be adjusted according to actual production needs. Also, what was said on floor 5 is correct; actual production is designed based on multiples of the minimum reflux ratio (the minimum amount of reflux required when assuming an infinite number of tray levels).
The reflux ratio depends on the separation requirements; full reflux provides the best separation results, but it must be adjusted according to actual production needs. Also, what was said on floor 5 is correct; actual production is designed based on multiples of the minimum reflux ratio (the minimum amount of reflux required when assuming an infinite number of tray levels).