You can choose from several standard sizes or you let us build the plant which meets exactly your requirements.

The standard sizes

of our VTC plants:

To increase the capacity, it is possible to

place several plants next to each other.

10 m³/d


1,000 t/a

50 m³/d


5,000 t/a

100 m³/d


10,000 t/a

250 m³/d


25,000 t/a

500 m³/d


50,000 t/a

1,000 m³/d


100,000 t/a

2,000 m³/d


200,000 t/a

3,000 m³/d


300,000 t/a

Would you like to know more about our plants or do you wish to send an inquiry on one or several plants?




    The Process – step by step

    1. The carbonization trolleys are loaded with biomass: that can be presorted landfill waste or other biogenic materials.

    2. As soon as the trolleys are loaded, they are pushed into the reactor on fixed rails.

    3. The reactor door is closed hydraulically and locked.

    4. Steam is supplied to the reactor.

    5. As soon as the reactor reaches the required temperature and pressure, the carbonization process starts.

    6. The pressure and temperature in the reactor are continuously monitored. If necessary, steam is added.

    7. The reaction time is approx. 3 to 5 hours, depending on the source material.

    8. The steam supply is stopped automatically as soon as the carbonization cycle is completed.

    9. The steam in the reactor is reduced automatically and in a regulated way.

    10. When the pressure reaches the level of the environment, the reactor door opens automatically and the trolley is pulled out.

    11. The biochar is tilted onto a conveyor via a tilting device and fed to a vibrating screen.

    12. The biochar is placed in a dryer and dried to a predetermined moisture content.

    13. Shortly after, the dried material is transferred to a pelletizing plant and pressed to stable pellets or grinded into dust.

    14. The pellets or dust are stored in a specially equipped storage unit.


    Specific proprietary features such as steam supply, proprietary equipment, etc. are recorded in patent documents and therefore not described here.



    The biochar produced in our VTC plants is similar to brown coal. It has a slightly higher calorific value but the same fuel and ash melting behavior.


    The biochar is carbon-neutral. The ash content depends on the used raw material. The remaining moisture content can be set according to customer requirements.


    After the processing, the biochar is stable in storage and in transport.

    The processing usually involves briquetting, pelletizing or grinding.


    Activated carbon

    We are currently developing a production plant for activated carbon from biomass. Plant materials such as Calliandra, Miscanthus, sugar beets waste, digestates, etc. are used as raw material.


    This is a more elaborate process that involves a series of methods developed by our specialists.

    The production of activated carbon is expected to be completed after a full cycle of Calliandra growth (two harvests) lasting up to nine months.



    Organic biochar (carbon for medical purposes)

    Market research carried out by Itt in Canada has shown a worldwide demand for particularly pure biochar as a main component for pharmaceuticals.

    The requirements for the production of pharmaceuticals are very strict; one of which states that the raw material must be from organic origin.


    The agricultural croplands must be prepared in a particular way with specially designed humus from the combined composting of our biochar with green material.

    Humus is the organic component that forms in soil when dead plant matter is decayed by micro-organisms.

    Biochar improves the water retention of soils and absorbs the nutrients during the composting process. Later on, these nutrients are slowly given back to the plants over a long period of time. We recently developed a formula to produce organic humus from biochar.


    VTC process water

    During carbonization, water is expelled from the biomass.

    The chamber filter press which works as a precoat filter separates the particles from the process water generated during the production of biochar from biogenic raw materials such as Calliandra (and other fast-growing plants).

    The eutrophic liquid can then be given back to the plantations as a fertilizer. The press cake formed is used in the carbonization process.


    The polluted process water from the carbonization of waste is put through a more complex treatment process. First, this water also passes through a chamber filter press but then has to be further processed.

    Afterwards, this water can be securely discharged into receiving waters. Needless to say, this procedure is carried out in compliance with the regional regulations and limits.