Full Process Dynamic View
Response
Current Reading
notice only; not an interlock| Dry gas stream / Nm3/h | CH₄ | CO₂ | H₂S | N₂ | Total |
|---|
H₂S Capture shown as raw-gas standard volume equivalent, not a separate real stream. Regen air, tail gas, and reaction water not included in this dry-gas table.
Chelated Iron: inventory over time
Total iron inventory N = liquid volume x iron concentration / 55.845; concentration in g/L = kg/m3. Fe3+ inventory F is a dynamic state; initial F/N = 80%.
circulation x iron conc. x F/N / (2*55.845))
rFe = min(4 × air flow x 20.95% x O2 utilization / 22.414,
12 × (N − F))
dF/dt = rFe − 2rS
rS and rFe are in kmol/h; F and N in kmol. Numerical integration limits per-step inventory to preserve iron conservation. 12 h^-1 is a demo regeneration rate constant, not measured kinetics.
Sulfur yield = rS x 32.065 kg/h; theoretical O2 = 0.5 x captured H2S std volume. Total iron is a catalystinventory, Not continuous chemical consumption; Fe3+ ratio is not equivalent to ORP.
PSA: cycle-average component allocation
Product CO2 = PSA inlet CO2 x (1 - removal rate)
Product N2 / H2S = corresponding inlet
Tail gas components = PSA inlet - product
Product purity = product CH4 / product total
No upstream loss of CH4, CO2, or N2; dissolution, entrainment, and leakage neglected. Station-level CH4 recovery equals PSA input recovery. N2 fully passes through; denitrification not simulated.; H₂S fully passes throughConservative notice only; actual conditions may damage the adsorbent.
guard stageH2S removal computed using fixed capture ratio; consumable capacity not simulated. Captured amount not counted in chelated iron dry sulfur. Yield.
Column pressure and bed loading are timing indications only and do not affect distribution. Switching disturbances, gas-phase volume, and transport lag are not modeled; gas readings update instantly for current conditions.
Reference Mechanisms - click to read online
Sources support the reaction and separation principles. All default parameters, efficiencies, rate constants, and four-stage timings on this page are demo values.assumption, Not design values provided by the sources.
Reaction Stoichiometry
Absorption: H2S + 2Fe3+ -> S + 2Fe2+ + 2H+
Regeneration: 4Fe2+ + O2 + 4H+ -> 4Fe3+ + 2H2O
Overall: H2S + 1/2 O2 -> S + H2O
Fe representChelated active iron; ligands omitted from equations. Regen air feeds an independent liquid loop.
Usage Boundaries
This pageFor mechanism learning, operating-condition comparison, and material-flow demo only — not calibrated with field data. Not for equipment sizing, procurement performance guarantees, or control interlock routines.
No models for pH, complex stability, packing wetting, real gas-liquid mass transfer, sulfur slurry fouling, humidity, CH4 dissolution loss, or oxygen entrainment. circulationEstimated from iron supply only; not a basis for pump sizing.
PSA No isotherms, breakthrough curves, adsorption heat, mass transfer, or valve equalization solved. Compression energy and equipment sizing not computed.
PSA inlet H₂S, Dew point, siloxane limits, etc. must be confirmed by the adsorbent vendor. Product H2S comparison target of 3 ppm does not replace PSA inlet protection limits.
Product CH4 ≥95%, H₂S <3 ppm For this demo comparison only; does not represent applicable standards or delivery commitments. Both tail-gas streams terminate at the interface — destinations and treatment systems TBD.
No simulation of startup/shutdown, off-spec gas handling, or safety interlocks. Pausing the animation only halts time advancement; it does not represent a field stop.