Naphthalene sampling position on the side line
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Our company is currently constructing a benzene removal tower, and it is necessary to extract naphthalene through a side stream. I would like to ask everyone: how should the outlet for extracting naphthalene from the side stream be determined? Should it be based on calculations or on empirical methods? We have no prior experience with this, so I hope everyone can provide some guidance. . . I saw discussions by experts on the forum saying that it’s hardly used these days, but the client wants a side port for naphthalene extraction; we only know it should be above the feed location, but we’re not sure exactly which layer it should be placed on. Please give me some advice. . .
No one answered. . . Push on your own. . . I’m in a hurry; I hope everyone can help, *e*e. .
1. Of course, it is determined through calculation； 2. Generally, it is installed on trays at a temperature of 140–160 degrees, with 4–6 layers ； 3. During actual operation, it is necessary to choose one of the tower stages for sampling based on the temperature; generally, the temperature is 150 degrees, and the specific choice can be determined by referring to laboratory test data.
In the middle section of the debenzene tower, the naphthalene content in the extracted naphthalene oil is over 50%.
Why at this temperature? Based on the boiling point, right? The boiling point of naphthalene is 218
What is extracted is a mixture, not pure naphthalene.