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Chemical plants run complex processes with vents of changing flow and composition, some carrying halogens, nitrogen compounds or corrosive species, under strict emission limits. The four points below are the main problems chemical plants face.
Reactors, dryers and recovery sections release vents whose flow and heating value change with the batch or the campaign.
Chlorine, fluorine and sulphur in a vent form acid gases that must be quenched and scrubbed.
Nitrogen-bearing vents can form NOx in the oxidiser, and permits limit it.
Process gas still needs a safe route when the oxidiser stops.
The CRA Edge
Thermal oxidisers are designed for destruction efficiency above 99%.
Quench and scrubbing sections treat HCl, HF and SO₂.
Staged combustion keeps NOx down without SCR.
Every oxidiser package includes a flare route for trips.
