Washing tower
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Aspen was used to simulate the production of hydrogen from methanol, and finally a flash tank was employed for washing out the methanol; however, a certain amount of methanol always remained in the gas product at the top of the tower. If it can’t be removed, the subsequent pressure swing adsorption process won’t proceed smoothly. I conducted sensitivity analysis, and it turns out that temperature and pressure have little impact. What should I do? Please give me some advice!
I got it; it’s not necessary to use flash evaporation – SEP will do~ Issue resolved
Using sep implies a manual separation, which does not reflect the actual situation; use radfrac instead
But I think there’s no need to use distillation to separate the gas and liquid phases in this system; at room temperature, water and methanol are liquids, while carbon dioxide, carbon monoxide, and hydrogen are gases. With SEP setting it manually, there should be no problem, right?
Radfrac can be used as an absorption tower; of course, if your requirements are not very strict, then what you say is fine. But when strict standards apply, especially for substances like CO2, which do have a certain solubility in water, it can be ignored if it has no impact on your process.
Oh, I see now. Thank you!~
I would like to ask whether ASPEN is suitable for gas-liquid separation
I don’t really understand Aspen either... I’m still figuring it out
I plan to use an absorption tower to separate carbon dioxide, but how do I separate the liquid from the gas that comes out of the condenser?
A flash tank will do. . . . . .