Urgently need a fitting for the absorption of CO2 using MDEA in the decarburization process of the ammonia synthesis purification unit! ! !
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I need to use MDEA to absorb CO2, and I want to use RadFrac as the absorption tower; however, I can’t find one with two feed inlets – in the Absorb model, there is always one feed inlet and three outlet ports. How can it be adjusted to have two feed streams (one of MDEA and one of CO2 mixture) and two outlet streams (one rich liquid stream and another semi-water gas stream)? Please, dear friends, extend a helping hand
When adding a logistics flow, hold down the feed logistics flow on the diagram with the mouse without releasing it, and pull it downward or upward to create a new logistics flow
Just add 2 feedings directly! During the addition process, start by using one feeding location; then click on one of the materials. When the arrow turns red, hold down the left mouse button and pull upward or downward to separate the two feedings!
I’m very grateful for everyone’s attention. I still have quite a few questions – how should the property coefficients for propylene and MDEA in absorbing CO2 be chosen? Also, if it is a mixture of air and CO2, how should it be specified in the logistics information? For example, if I set it to process a 35% mixture containing CO2, how should I enter that value in the raw materials field? Mine contains CO2, N2, and O2 (I don’t know how to write \"air\", haha; it can only be analyzed by separating its components). The respective concentrations are 0.35, 0.51, and 0.14. Haha, I’m not able to perform a fitting for these values
I haven’t done this, but when it comes to using NHD for CO2 absorption, there is a paper titled “Simulation of MDEA Decarbonization Systems”, authored by Tang Hongqing from the Lanzhou Design Institute of Sinopec. . . I don’t have the electronic version, so I can’t send it to you. You’ll need to search for it yourself to see if it can help you
In ASPEN, there are air-containing streams; you can find them by entering AIR when searching
Add air directly to the components; air is a pure component that is available in the database.
Thank you all for your help; I’m truly grateful to you all, my friends. For this reason, I will definitely keep working hard to master the Aspen simulation for CO2 absorption. If there are good results, I’ll share them with everyone too :)
I have a question: what physical property methods do you use to simulate MDEA’s absorption of CO2? I used amine, but as a result nothing was absorbed. Additionally, I tried using Elecnrtl, and it turned out that N2 and O2 were both absorbed! Is there something wrong with my settings? Who can help me solve this? I would be extremely grateful!