Process
Thermal precision and process control in every carbonisation cycle.
Wood is carbonised in a closed retort through a controlled thermal process. Each stage is monitored in real time by four probes connected to Piroliswiss Control, ensuring precision, efficiency and uniformity in every cycle.
Carbonisation
Cellulose and lignin break down. Gas that does not condense returns to the burner and heats the retort itself.
- Pyroligneous acid
- Combustible gas → burner
Illustrative temperatures per phase.
Retort vs. brick kiln
From traditional kilns to industrial carbonization
| Criterion | Piroliswiss retort | Brick kiln |
|---|---|---|
| Temperature | Real-time temperature control for stability and precision throughout the cycle | Judged by smoke colour |
| Smoke | Condensables are recovered and combustible gases are reused through the system's self-combustion. | Released to the air |
| By-products | Pyroligneous acid and fines recovered | Lost |
| Batch quality | Even carbonisation, fewer brands | Mixed: raw cores and ash |
| Unloading | Mechanised, fast operation with minimal manual handling | Requires workers to enter and more operating time |
Control and traceability
Smart monitoring in every cycle.
Piroliswiss Control is our kiln supervision and monitoring system. It records the temperature of every retort in real time, detects deviations during the cycle and stores the thermal curve of every load to ensure traceability, control and consistent operation.
Four probes per kiln
Front, centre, back and gas outlet. The spread between probes shows whether the load carbonises evenly.
Cycle phases
Loading, heating and pyrolysis are detected from temperature, with the start time and duration of each phase.
Real-time alarms
Immediate warning when a kiln passes its threshold, a probe fails or a node stops sending data. Without a connection, readings are queued and sent later.
Per-lot record
Every cycle is stored and can be exported, so each lot can be traced back to its temperature curve.
Piroliswiss Control is an in-house system in development. The screen shows the application design with sample data.
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