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We need to remove a ash. And we don't know which one is it's better . How can we select of them?

I'm practicing process simulation by using pro 2 simulation tool. At first, I used a shortcut column for decision num tray of a distillation. Component : propylene/ methanol/ water Thermo : NRTL01 Feed : Total fluid flowrate : 220 kg-mol/hr Composition Mole : propylene : 25 , methanol ...

I'm just wondering how should I access from where at first. Please I'm waiting for any advices

Thanks , Latexman. I'm sorry I didn't know that policy. I'm not really a college student. I am a new employee who is studying in the same way such as a student. And I don't get your sentence. "the glass is always full - 1/2 air and 1/2 water." Could you give me more advice, please?

Dear experts. I'm studying chemical process design from biomass as a student. I'm planning to design a distillation column that recycles propylene with 99.9% purity at a flow rate of 54,256 kg-mol/hr at the rectification section, where propylene+MeOH+Water enters as a feed. We have to get...