What is PyroDry

PyroDry® combines pyrolysis (T:Craker) with drying
(STR SpeedRotation Dryer series) and thus forms the basis for a
completely energy self-sufficient operation.
In cooperation with the NGE company, a pyrolysis reactor was developed, which makes the entire thermal energy from the pyrolysis process available to the drying process in the form of 300°C hot exhaust gas.
This makes it possible to operate the drying and pyrolysis process without the supply of external energy. The system consists of biomass feed, drying, pelleting and the pyrolysis reactor. They form a closed unit. This makes PyroDry the most efficient system for treating wet biomass.

Compared to incineration, pyrolysis offers a number of advantages:

1. Lower emissions

In contrast to incineration, which releases large amounts of carbon dioxide and other greenhouse gases, pyrolysis releases significantly fewer emissions. This is because oxygen is not supplied during pyrolysis to fully burn the material.

2. Increased energy recovery

Pyrolysis can be considered as a method of generating energy as the material is broken down into different components.

3. No External Power

Pyrolysis can be carried out at high temperatures that can be generated from the reaction itself. Therefore, the own demand for pyrolysis can be lower compared to incineration.

4. Avoidance of pollutants

Since no oxygen is added to the pyrolysis, the formation of pollutants such as nitrogen oxides (NOx) and sulfur oxides (SOx) is lower.

5. Product Manufacturing

Incineration is designed for the total destruction of the raw material, while pyrolysis produces several products from the raw material by breaking down the ingredients. The pyrolysis gas is produced, which can be used thermally, while the chemically stable carbon together with the mineral content results in a carbonaceous product (carbonate, biochar, TerraPreta).
This is used in a variety of ways, e.g. as activated carbon in the purification of liquids and air, as an additive in composting to improve soil. The phosphorus in biochar is fully available to plants.

Biochar from KS carbonisate

During pyrolysis, carbon from biomass is stored in the form of biochar. Sewage sludge pyrolysis is an excellent alternative way of utilizing sewage sludge. It is used decentrally at the sewage treatment plants. This avoids cost-intensive and environmentally harmful transport.
Dewatered sewage sludge is dried independently in the PyroDry® Energie and converted into carbonate (biochar). All chemical components, medical residues, microplastics and PFAS are almost completely destroyed by the high temperatures.
What remains is a carbon-containing pellet which has a wide range of applications as a product. It can be used as activated carbon to keep air and liquids clean. Activated carbon can be used to remove phosphorus and nitrogen from wastewater, as well as pathogenic microorganisms such as bacteria, viruses and parasites. Activated carbon removes organic compounds such as pesticides and herbicides, pharmaceutical residues, industrial chemicals and other organic compounds such as trihalomethanes, which result from the reaction of chlorine and organic compounds, from wastewater.