Covestro announces partnership with SOL Kohlensäure, which will supply biogenic CO2 to Covestro sites in North Rhine-Westphalia, Germany; material will be used to produce plastics such as MDI and PC

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September 15, 2022 (press release) –


  • Covestro’s NRW sites supplied with biogenic CO₂ from SOL Kohlensäure
  • Supply partnership helps Covestro switch to alternative raw materials
  • Both partners advancing Circular Economy and climate neutrality

Materials manufacturer Covestro and SOL Kohlensäure GmbH & Co. KG have concluded a framework agreement for a supply partnership for biogenic carbon dioxide (CO2). With immediate effect, SOL, as one of the most important European suppliers of gases and gas services, will supply the liquefied gas to Covestro sites in North Rhine-Westphalia, where it will be used to produce plastics such as MDI (methylene diphenyl diisocyanate) and polycarbonate. Under the terms of the framework agreement, SOL Kohlensäure will already supply up to 1,000 metric tons of biogenic CO2 this year. From 2023, the supply volume is to be further increased substantially, enabling Covestro to save the same amount of CO2 from fossil sources at its NRW sites.

“We have set ourselves the goal to become fully circular. To this end, we want to convert our raw material base to 100% renewable sources. We are very pleased to have found a partner in SOL Kohlensäure who will support us in this transformation with a pioneering spirit,” explains Daniel Koch, Head of NRW Plants at Covestro.

“We at SOL Kohlensäure are advancing the shift to more sustainable CO2 sources. In this way, we are increasing security of supply, becoming independent of fossil raw materials, and reducing our environmental footprint at the same time,” emphasizes Falko Probst, Sales Manager at SOL Kohlensäure.

From waste product to raw material
The CO2 used is obtained by SOL Kohlensäure from various sources, such as bioethanol and biogas plants. In these plants, CO2 is produced as a by-product during the treatment of various biomasses, such as plant residues.  This is separated by SOL Carbon Dioxide, purified and then made available to Covestro production as a raw material. 

In this way, the supply partnership supports the circular concept and contributes to reducing emissions. 

Covestro’s Lower Rhine sites in Leverkusen, Dormagen and Krefeld-Uerdingen are ISCC PLUS certified and can supply their customers with more sustainable products made from renewable raw materials.

Goal of climate neutrality by 2035
Covestro has set itself the goal of becoming fully circular. This also includes using alternative raw materials. Biomass, CO2, as well as end-of-life materials and waste replace fossil raw materials such as crude oil or natural gas. Carbon is managed in a circular way. In realizing these ambitions, both companies are relying on long-term supply partnerships.

In addition to biogenic CO2, Covestro is investigating the use of other technical gases from renewable sources. The materials manufacturer is already offering its customers its first sustainable products, such as climate-neutral¹  MDI. With the expansion of its alternative raw material base, this portfolio is set to grow further in the coming years.

ISCC (“International Sustainability and Carbon Certification”) is an internationally recognized system for the sustainability certification of biomass and bioenergy, among others. The standard applies to all stages of the value chain and is recognized worldwide. ISCC Plus also encompasses other certification options for instance for technical-chemical applications, such as plastics from biomass.

¹ Climate neutrality is the result of an internal assessment of a partial product life cycle from raw material extraction (cradle) to the factory gate (Covestro gate), also known as cradle-to-gate assessment. The methodology of our life cycle assessment, which has been critically reviewed by TÜV Rheinland, is based on ISO standards 14040 and 14044. The calculation takes into account biogenic carbon sequestration based on compensation measures.

About SOL Kohlensäure GmbH & Co. KG:

SOL Carbon Dioxide is one of the leading suppliers in the liquid carbon dioxide sector in Germany and supplies numerous customers from a wide range of industries with cryogenic liquefied carbon dioxide. The most important sectors include the food and beverage industry, the chemical industry, and dry ice producers.

SOL Carbon Dioxide produces biogenic CO2 from sustainable sources at several locations. 

About Covestro:

Covestro is one of the world's leading manufacturers of high-quality plastics and their components. With its innovative products and processes, the company contributes to greater sustainability and quality of life in many areas. Covestro supplies customers around the globe in key industries such as mobility, construction and housing, and electrical and electronics. In addition, Covestro's polymers are used in areas such as sports and leisure, cosmetics, healthcare and in the chemical industry itself.

The company strives to be fully circular and aims to become carbon neutral by 2035 (Scope 1 and 2). In fiscal 2021, Covestro generated sales of €15.9 billion. As of the end of 2021, the company produced at 50 sites worldwide and employed around 17,900 people (converted to full-time positions).

Forward-looking statements

This news release may contain forward-looking statements based on current assumptions and forecasts made by Covestro AG. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. These factors include those discussed in Covestro’s public reports which are available at The company assumes no liability whatsoever to update these forward-looking statements or to conform them to future events or developments.

* All content is copyrighted by Industry Intelligence, or the original respective author or source. You may not recirculate, redistrubte or publish the analysis and presentation included in the service without Industry Intelligence's prior written consent. Please review our terms of use.

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