Direct air capture, a real rotary-kiln calcination loop
Ambient air contacted for CO2, causticized into pellets, calcined in a real rotary kiln, then compressed and chilled to genuine subcooled liquid CO2.
The actual dark-mode canvas: ambient air contacted for CO2, causticized into CaCO3 pellets, calcined in a real rotary kiln, then compressed and chilled to genuine subcooled liquid CO2 — the same P&ID symbols you edit in the app.
A real kiln, and genuinely liquid CO2
The calciner runs real Arrhenius decomposition kinetics sized by the Sullivan-Maynard-Valentine residence-time correlation, and the liquefaction stage cools compressed CO2 past its real Span-Wagner saturation pressure at 250 K — the solved outlet is verified subcooled liquid, not just dense-phase pipeline gas relabeled.
Unit ops shipped for this vertical
Polytropic compression to pipeline/process pressure.
Flash/phase-split unit op — the foundational vapor-liquid calculation.
Indirect-fired shell with real Arrhenius decomposition kinetics and Sullivan-Maynard-Valentine residence time.
Duty- or outlet-condition-specified energy-balance stage.
Stream kiln wall temperature, calcination conversion, and CO2 liquefaction pressure from your DAC train's OPC-UA server into this flowsheet's twin comparison — deviations from the solved conversion are flagged automatically.
See the Digital Twin platform →Try it yourself
- ✓Real rotary-kiln Arrhenius decomposition kinetics
- ✓Sullivan-Maynard-Valentine residence-time sizing
- ✓Genuine Span-Wagner subcooled liquid CO2, not pipeline gas