Judgment of xylene column simulation indicators
Thread Content
Hello, experts. I am simulating a xylene tower, and the client requires that the C8 mixed aromatic hydrocarbons coming out of the tower meet the requirements specified in GB/T 3407-2010 (which outlines specifications regarding colority, aromatic hydrocarbon boiling range, etc.). How can I quantify the C8 parameter at the tower top during simulation calculations? For example, what is the limit for the content above C9 at the top of the tower, and so on. Kneeling in gratitude! !
Hello, I have also been simulating this tower recently. What is the reflux ratio for your tower roughly? Do you have any empirical values in this regard? Thank you!
The reflux ratio is generally kept around 6.5-7
Petroleum xylene is usually used as a feedstock for aromatic adsorption separation units, and the feedstock for such units requires a C9 content at the tower top of less than 500 ppm.
Thank you. I have previously worked on xylene columns in aromatic compound plants, and in most cases the requirement was 500 ppm. But it’s not clear what the quantitative criteria are for determining whether such takeout meets national standards.