Electrolyte Process Flowsheets & Simulations
Explore 2 validated, solved Electrolyte simulation flowsheets in MaximaLabs — real components: methane, co2, h2s, water, mdea, pz. Open any one directly in your browser.
Solved via: ENRTL-MDEA-PZ, PENG-ROBINSON.
Refinery acid-gas treating: MDEA/PZ absorber-stripper
Simultaneous CO₂ AND H₂S removal from a sour natural-gas / refinery off-gas stream by a piperazine-promoted MDEA solvent — the mixed-amine chemistry legacy tools reach for heavy rate-based/OLI add-ons to model. A high-pressure absorber contacts the sour gas with lean MDEA/PZ solvent (both acid gases absorb into the amine); the rich amine is heated and let down to a low-pressure steam stripper that drives the acid gases back off as a concentrated acid-gas stream and regenerates the lean solvent. Runs on the new 'enrtl-mdea-pz' electrolyte package: a generalized speciation (MDEA protonation + piperazine carbamate/dicarbamate + CO₂/HCO₃-/CO₃-- + H₂S/HS- + water) with Davies activity — it correctly reproduces piperazine's promotion (the blend holds more CO₂ at a given partial pressure than MDEA alone).
10 unit ops • ENRTL-MDEA-PZ
224 3
View & openBlue hydrogen with rigorous amine capture (multi-thermo)
The blue-hydrogen train done properly: steam-methane reforming and water-gas-shift run on a cubic gas EoS (Peng-Robinson), while the CO₂ capture runs on the rigorous electrolyte amine package (MDEA/piperazine 'enrtl-mdea-pz') — two thermo methods in one flowsheet, via per-node thermo_overrides. This is what legacy tools do with a property-method 'section' and what the plain 'blue-hydrogen-smr-ccs' showcase couldn't (one package per flowsheet forced a component-separator stand-in for the capture). Here the shifted syngas is contacted with a lean MDEA/PZ solvent in an absorber that removes the CO₂ by real reactive equilibrium (H₂/CO/CH₄ pass through as insoluble gases), delivering ~94% H₂ with the CO₂ driven to trace and a rich amine at a realistic ~0.7 mol CO₂/mol amine loading.
11 unit ops • PENG-ROBINSON
226 6
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