What property methods does ASPEN use to simulate the absorption of wastewater gases from air?
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Simulate an absorption tower: the feed at the bottom is waste air at atmospheric pressure, consisting of 40% by weight of air and 60% by weight of water vapor. Due to process requirements, water vapor cannot be released into the atmosphere; therefore, circulating water is used at the top of the absorption tower to absorb the water. The feed at the top is circulating water at 80°C, with the purpose of absorbing moisture from the air. The tower operates under slight negative pressure (vacuum extraction), at -3 KPa at the top, with a pressure drop of 3 KPa in the tower. What physical method is best for absorption? I tried NRTL, but the results were not very satisfactory, with a large discrepancy from the manual calculations.
This post was last edited by tdl522 on 2015-7-7 15:26: IDEAL+Henry components.
Agree with what was said above. Have you tried it? What were the results?