Catalytic Air Recirculation for Faster Isolation Space Decontamination

The patent replaces the mechanical fresh air flushing system with a catalytic chemical reaction system. A catalytically active cleaning device decomposes hydrogen peroxide vapor into water and oxygen through catalysis, eliminating the need for prolonged mechanical air exchange and reducing flushing time from hours to minutes.

The patent changes the chemical state of the decontamination agent by introducing a catalyst that transforms hydrogen peroxide vapor into harmless substances. This parameter change (chemical decomposition) enables rapid elimination of the decontamination agent without requiring extended flushing periods.

The patent substitutes the energy-intensive mechanical air handling system with a chemical catalysis system. The catalytic decomposition requires minimal energy input compared to operating large fresh air conditioning equipment at high capacity, thus reducing energy consumption while achieving rapid flushing.

By changing the approach from mechanical air exchange to chemical decomposition, the system achieves the same flushing objective with dramatically reduced energy input. The catalyst enables the reaction to proceed rapidly at ambient conditions without requiring high-power equipment.

The patent employs porous ceramic foam structures as the catalytic substrate. The porous architecture provides extensive surface area for catalytic activity while maintaining low flow resistance, allowing air to pass through easily compared to dense bulk material configurations.

The patent creates a composite structure combining ceramic foam with catalytic materials (MnO2, Pd, or Pt). This composite provides both the mechanical support structure and the catalytic functionality, achieving effective decontamination agent removal with minimal pressure drop across the cleaning device.