Hydrogenation Process Flowsheets & Simulations
Explore 2 validated, solved Hydrogenation simulation flowsheets in MaximaLabs — real components: benzene, h2, cyclohexane, nitrobenzene, hydrogen, aniline. Open any one directly in your browser.
Solved via: PENG-ROBINSON.
Benzene hydrogenation → cyclohexane
Benzene + 3 H₂ → cyclohexane in a conversion reactor, then a high-pressure flash recovers liquid cyclohexane and recycles the excess hydrogen (with a purge). The classic ChemSep recycle example — exercises reaction + recycle convergence.
8 unit ops • PENG-ROBINSON
17 0
View & openAniline via nitrobenzene hydrogenation
Vapor-phase catalytic hydrogenation of nitrobenzene (C6H5NO2 + 3H2 -> C6H5NH2 + 2H2O, highly exothermic) with excess hydrogen, a high-pressure flash recovering unreacted H2 as a recycle vent, then a reduced-pressure flash stripping residual water from the crude aniline. Honesty notes: the reactor is a stoichiometric conversion model (98%), not a nitrobenzene-specific rate law — this solver has no curated hydrogenation kinetics for this reaction. The final aniline/water cut is a single-stage flash, not a multi-tray column: aniline and water are a genuinely non-ideal, partially-miscible pair, and this solver's UNIFAC-based decanter (the tool built for exactly that miscibility gap) doesn't have nitrobenzene's group decomposition, so a real plant's decant-then-distill sequence isn't fully modeled here.
9 unit ops • PENG-ROBINSON
18 0
View & open