Carbon dioxide (CO2) is a greenhouse gas, but carbon is also a basic component of many chemicals. By combining innovative technologies, the climate gas can be removed from the atmosphere and made usable as a raw material.
The Ministry of the Environment is currently funding a feasibility study in which a concept for a modular exhaust gas refinery is being developed. The study focuses on production sites with high CO2 concentrations in the exhaust air, such as cement production, waste incineration, the paper and glass industry and energy production.
Aim of the study is the development of innovative solutions that can be used in a bio-refinery demonstration plant for CO2-Recycling. The main objective is to recover CO2 from the exhaust air of companies and to return the carbon to the economic cycle.
In addition, other substances are to be recovered from the exhaust air (such as metals from the filter dusts). This serves to conserve resources and protect the environment.
In addition to the expected positive effects for climate protection, CO2 recycling also contributes to the future supply of carbon as a resource for economy. This is an important aspect. For it is expected that the demand for carbon as a raw material (for material use in plastics and other high-tech materials, for example) will continue to increase in the future. The demand cannot be completely covered by plant biomass, as the land required for cultivation is too high.
Bio- CO2 recycling is one of the 37 measures of the state strategy Sustainable Bioeconomy (Measure 20).