HYSYS problems
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My model is for decarbonization. In a absorption tower (DEA TO CONTACTOR), it should logically be the case that both the temperature at the top and at the bottom of the tower are higher than the feed temperature. However, the temperature of the material exiting at the bottom of the tower, which is RICH DEA, is only 25°, while the temperature at the very bottom of the tower is 56°. I’ve shared my model here; I hope experts can provide some guidance. I’m using HYSYS version 7.1
Reply to 1# dwf198208: The version is too high and cannot be opened. Try saving it as XML format by the original poster.
Reply to 2# muzili2008: I’ve converted it to XML format. Please take a look. Do you have QQ? Mine is 150591470; it’s convenient to discuss HYSYS
To answer why the two temperatures are different: it’s because the fluid inside the tower is not exactly the same as the PDF fluid. There is a function called transfer basis, which can be set in the flowsheet tab of the tower. Currently you are using P-H flash; if you change it to T-P flash, then the temperatures on both sides will be the same. Logically, the two fluids should have similar properties; I’m not sure why there’s such a big difference in yours. It remains to be studied
You should look at the temperature in the profiles within performances, rather than in the parameters.
I’m also on version 7.1; why don’t I have any problems? It’s very likely an issue with the conversion settings
Dude, have you solved that problem? ? ? ? Please talk to me about QQ792462590