CO2 Sorbent Lattice 3D | mysimulator.uk

Scrubber chemistry

Cabin CO₂ concentration 0.50%

Bed temperature 22 °C

Absorption capacity

–

Saturation (95%) time

–

Regenerable

–

Sites filled

–

How it works

Each sorbent grain is modeled as a lattice of active sites. LiOH sites react irreversibly (2LiOH + CO₂ → Li₂CO₃ + H₂O) — once filled they turn solid carbonate and never re-open, so the whole lattice is a one-shot canister. Amine sites chemisorb CO₂ reversibly, filling steadily across the whole volume. Zeolite 5A sites physisorb CO₂ into pore channels — fast at low temperature but the fill rate collapses as heat rises, since physisorption is exothermic and thermodynamically disfavored when hot.

P(site fills this step) ∝ k(chem, T)·[CO₂]·dt
k_zeolite(T)↓ sharply as T↑ ; k_LiOH(T) mildly ↑ as T↑

Chemistry — swaps the lattice's capacity, fill-rate response to temperature, and whether filled sites can later empty (regeneration).
CO₂ concentration — sets how many CO₂ molecules stream toward the lattice per second.
Bed temperature — colors the CO₂ stream and directly rescales each chemistry's fill rate and final capacity, matching the trend seen in the 2D lab (compare the two).
Sites filled — the literal fraction of the instanced lattice currently holding a captured CO₂ molecule, driving both the readout and the lattice's color shift from open (dim) to saturated (bright).

Real-world relevance: this is the same three-chemistry comparison as the 2D lab, viewed at molecular scale instead of as a bed-level capacity curve — useful for seeing why LiOH beds are always disposable while amine and zeolite beds are engineered around a repeating adsorb/desorb cycle.

CO₂ molecule Open site Filled site

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CO₂ Sorbent Lattice — 3D