Waste heat

When the raw material is heated, volatile pyrolysis gases escape. These pyrolysis gases are ignited and in turn further heat the raw material. The cycle is self-sustaining until the volatile carbon components have escaped from the raw material and burnt off. What remains is the biochar with its bound carbon content.

However, far more heat is released in the process than is needed for the self-sustainability of the cycle. This excess waste heat can be used.

Heat exchanger

A tubular heat exchanger is fitted in the hood above the reactor. A water-glycol mixture flows through the heat exchanger and can thus absorb the excess heat from the reactor and feed it to a buffer storage via pipes.

Thanks to the buffer storage, the heat is continuously available, even when pyrolysis is carried out in individual batches.

biochar heat

Versatile heat use

The heat energy contained in the buffer storage can be used flexibly in a wide variety of ways. For example:

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