Wet air oxidation, where the pressure is the point
Dissolved organics oxidized by dissolved oxygen at temperature and pressure, with the water deliberately kept liquid.
The actual dark-mode canvas: phenolic wastewater preheated and mixed with oxygen, oxidized in the liquid phase under pressure, then cooled and separated into off-gas and treated water.
Why the pressure is the point
Oxidizing organics in water at 200–300 °C would boil the water and cost its latent heat — an enormous penalty on a dilute stream. Holding the system above the saturation pressure keeps everything liquid, so only the organics are oxidized. That is the entire economic argument, and the flowsheet solves the reactor at conditions where it actually holds.
Unit ops shipped for this vertical
Duty- or outlet-condition-specified energy-balance stage.
Combines multiple streams into one, closing the mass and energy balance.
A specified per-pass conversion on a key component — the shortcut counterpart to the equilibrium and kinetic reactors.
Single-stage vapor-liquid equilibrium split at a fixed temperature/pressure.
Stream reactor temperature, pressure and treated-water COD from the unit's OPC-UA server into this flowsheet's twin comparison — WAO conversion is steeply temperature-dependent, so a small drop is a large COD breakthrough.
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- ✓Liquid-phase oxidation — no latent-heat penalty
- ✓Exactly mass-balanced destruction of dissolved organics
- ✓Treats what is too dilute to burn and too toxic to biotreat