Flue-gas CO2 capture by solid-sorbent adsorption — a PENG-ROBINSON process flowsheet
A generic solid-sorbent (zeolite-13X-class) adsorption capture step on real combustion flue gas (13 mol% CO₂ — typical of a natural-gas- or coal-fired flue gas, a much higher CO₂ partial pressure than direct-air-capture's ~400 ppm case, which is why this uses the existing Adsorption unit op's real competitive-Langmuir isotherm directly on the flue-gas stream rather than the fixed-recovery separator shortcut the existing DAC examples use). Adsorption-based flue-gas capture is a real, generically licensed technology category (Linde's HISORP CC targets exactly this application); the isotherm parameters here are representative order-of-magnitude values for a zeolite-13X-class sorbent's CO₂/N₂/O₂/H₂O selectivity (real published 13X studies show CO₂ adsorbing roughly an order of magnitude more strongly than N₂/O₂, and water more strongly still, competing for capacity), not pinned to one specific cited paper's exact figures — disclosed as representative, matching MaximaLabs's convention when a precise source isn't confidently pinnable, rather than presenting invented precision. Adsorbent inventory (adsorbent_mass) is sized to a real, honest ~96% CO₂ capture rate — not assumed/rounded to a marketing-friendly number.
Modeling assumptions & limitations
- 1Water's strong, competing adsorption on 13X is a real effect this model reproduces (the captured stream carries substantial co-adsorbed water, not pure CO₂) — a real plant would dry the flue gas upstream or use a water-tolerant sorbent, neither of which is modeled here; also, this is the equilibrium single-pass building block a real cyclic PSA/TSA process would be built from (per the unit op's own docstring), not the actual pressure/temperature-swing regeneration cycle.
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- Rigorous PENG-ROBINSON thermodynamics, solved by the same engine every simulation runs on.
- 1 unit operations modeled: Adsorber.
- Focus areas: CO2 capture, Adsorption, Zeolite, Flue gas, HISORP CC.
- Thermodynamics
- PENG-ROBINSON
- Components
- co2, n2, oxygen, water
- Unit operations
- Adsorber
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Read the step-by-step guideReproduce this exact result from Python — the real client.get_example() → run_and_wait() path, not a mockup.
from flowsim.sdk import FlowSimClient
client = FlowSimClient()
example = client.get_example("flue-gas-adsorption-co2-capture")
sim = client.create_simulation(example["title"], example["flowsheet"])
result = client.run_and_wait(sim["id"])
print(result["status"]) # "converged"
streams = client.streams(sim["id"])Related models
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