The Glass CHP · CHP

When is the catalyst poisoned?

Ventilation/dehumidification — the silent 24/7 load, with heat recovery. Part of the glass family — like our glass BESS, biogas plant and CHP.

When is the catalyst poisoned?
Outdoor air Fresh air Heat recovery Heating coil Hall Exhaust
Glass-box in 4 steps

Understand → See it live → What the AI does → Your benefit

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Understand
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See it live
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What the AI does
Your benefit

What is When is the catalyst poisoned??

H2S is the most common cause of catalyst poisoning in biogas CHP units; diagnosis: Delta-T across the catalyst drops towards zero (no longer an exothermic reaction) — desulfurization and activated carbon filters prevent re-poisoning.

The plant — right now

connect… · anonymous reference plant · read-only from the process control system, calculated in-house Exhaust gas Cyl 1 … °C before catalyst … °C after catalyst … °C intake air … °C excerpt from … plant measurements. To the detailed explanation page with video →

What the AI reads from these values

What the AI reads
  • Falling Delta-T across the catalyst as an indicator of lack of exothermicity
  • Increase in H2S content in the raw gas before desulfurization
  • Decreasing exhaust gas temperature below the operating parameters (reference: 469.3 °C)
  • Loss of selectivity in methane oxidation and thus decreasing efficiencies
Scenario

Monitored: continuous

The scenario: an emission value creeps slowly upwards, only noticed during the official measurement, in the worst case leading to operational restrictions. The AI: detects the trend towards the limit early and reports the need for action before the measurement occurs. It detects the trend before the limit is reached.

Why this matters

Early detection prevents the destruction of the catalyst and minimises downtime caused by necessary replacement work. The use of desulfurization units and activated carbon filters extends the service life of the catalyst. This ensures constant exhaust gas quality and protects the plant from chemical corrosion. Measured value (mg/m³) · Limit value (mg/m³) → — % reserve to limit Calculation: (Limit value − Measured value) ÷ Limit value × 100

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