The German business and financial newspaper Handelsblatt takes a look at the value of carbon-based products and reports: “Companies around the world are developing processes to capture and recycle CO2. Some technologies have particular potential.”
This is a translation of the text excerpts about our company:
Pyreg: Biochar from biomass
Compost, green waste, wood and manure are also CO2 emitters. The engineering company Pyreg, for example, manufactures a system that converts CO2 containing biomass residues into valuable biochar.
In this process, the biomass is converted into biochar under air extraction and high temperatures in so-called carbonization plants. This prevents a large proportion of the CO2 contained in the biomass from escaping into the atmosphere. The biochar is used, for example, in agriculture to enrich the soil with nutrients and in and in industry as a component of building materials. There, the CO2 is “safely stored for thousands of years,” says Pyreg CEO Jörg zu Dohna. If the green waste were left to rot instead, the CO2 stored during the plants’ growth phase would be released again. One ton of Biochar permanently binds almost three tons of CO2 per year.
The system has a further advantage: Heat is generated in the carbonization process. The industrial company Thyssen-Krupp Rothe Erde, which produces large-diameter antifriction bearings, has installed a carbonization plant at its production site in Lippstadt. According to Wilfried Spintig, COO at Thyssen-Krupp Rothe Erde, it covers around 40 percent of the energy requirements for heating and warm water in the production halls, offices and staff rooms. That corresponds to the annual demand of just under 180 four-person households. Thyssen-Krupp Rothe Erde uses wood from packaging waste. Around 2,500 metric tons of wood residues are used annually to generate over 5300 megawatt hours of heat and heat and around 640 tons of biochar.
Demand for the carbonization plants has has risen sharply in the past the past two years. Over 50 plants are in operation worldwide and remove 30,000 metric tons of CO2 annually. This corresponds to equivalent to the climate performance of 2.4 million trees. The technology has has its price: one plant costs around two million euros.