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Gas recycle Process Flowsheets & Simulations

Explore 2 validated, solved Gas recycle simulation flowsheets in MaximaLabs — real components: benzene, h2, cyclohexane, nitrobenzene, hydrogen, aniline. Open any one directly in your browser.

Solved via: PENG-ROBINSON.

Benzene
Hydrogen
MIX
RXN
SEP
Split
Cyclohexane
Purge
Reference model (ChemSep)

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

227 0

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NB FEED
H2 FEED
MIX
RX
Hpsep
H2 VENT
Vflash
Water OVHD
Aniline Product
Ludwigshafen, Germany

Aniline 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.

9 unit ops • PENG-ROBINSON

224 0

View & open

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