- The German Federal Ministry of Education and Research invested 6.3 million euros in the pilot plant.
- The plant uses CO2 and water to produce specialty chemicals like plastics and food supplements.
- The project is part of the Rheticus I and II research initiatives.
- Optimization of synthesis gas composition and electrolysis-fermentation interaction is ongoing.
Overview
Evonik and Siemens Energy have commissioned a pilot plant in Marl, Germany, funded by the German Federal Ministry of Education and Research (BMBF) with 6.3 million euros. The plant uses carbon dioxide and water to produce chemicals, powered by renewable energy.
Technology and Process
The plant employs artificial photosynthesis, mimicking natural processes to convert CO2 and water into valuable chemicals through electrolysis and bacterial fermentation. This method aims to close the carbon cycle and reduce atmospheric CO2 pollution.
Components and Function
The facility includes a CO electrolyzer developed by Siemens Energy, a water electrolyzer, and a bioreactor utilizing Evonik's expertise. These components convert CO2 and water into carbon monoxide (CO) and hydrogen (H2), which are then used by microorganisms to produce specialty chemicals.
Research and Development
The pilot plant is part of the Rheticus I and II research projects, which are spin-offs of the Copernicus projects, one of Germany's largest energy system transformation initiatives. The current phase focuses on optimizing the synthesis gas composition and the interaction between electrolysis and fermentation.
Future Prospects
Upon successful completion of the Rheticus II phase, Evonik and Siemens Energy will have a modular and flexible platform technology capable of producing energy-rich substances like specialty chemicals and artificial fuels from CO2.
BMBF's Role
In 2019, the BMBF allocated over 500 million euros to support energy research, with a significant focus on Power-to-X technologies. The Rheticus project is a key part of this initiative, demonstrating the practical application of converting renewable energy into sustainable chemical production.
