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Seeking a genuine restoration of the process package?

2017-03-22View Original

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I am working on a modification project, and I have a complete set of process data available (some flow rate values may have been omitted for confidentiality, but all the important ones are present). Before making any modifications, I need to reconstruct the entire process flow. However, there’s a problem: the calculation results differ from the data in the process package, and in some cases the differences are quite significant There must be a problem with the parameters! So my question is: is it possible to regress the binary interaction parameters of the pure components in the process package based on the existing data?
Reply #22017-03-23
On the testing setup, it might be possible to figure things out through \"intercept\" methods; however, it’s likely difficult to reverse-engineer the process package solely through simulation calculations, as there are too many variables involved.
Reply #32017-03-23
**It’s possible, but there are difficulties
Reply #42017-03-23
Damn, the transformation has to start with a process plan – it’s quite a big task. By the way, ASPEN regression should be possible, but it requires a set of data with at least three or four points; do you have that much data available?
Reply #52017-03-23
Stop thinking about it – how is it possible to work out that backwards? How long has it taken to conduct simulations for low-temperature methanol washing and air separation?
Reply #62017-03-23
Instead of spending that time, it’s better to look up some literature and determine the regression parameters yourself; that’s a more reliable approach than using default parameters

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