double-effect distillation
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Using benzene-toluene-xylene as the separation system, with a feed rate of 375 kmol/h, the feed consists of 28% wt benzene, 70% wt toluene, and 2% wt xylene. The separation requirements are: the benzene content in the tower top effluent must be >=99.99% wt, and the benzene recovery rate must be >=99% wt. Everyone, what do you think I should start with? ? ? ?
If continuous twin towers are chosen, there are two options: in option 1, the top of Tower 1 contains benzene, while its bottom contains toluene and xylene; Tower 2 then separates toluene from xylene. In the other option, the top of Tower 1 contains benzene and toluene, while its bottom contains xylene; Tower 2 then separates benzene from toluene； After selecting a plan, roughly estimate the materials, enter the required data, and then run the simulation