News about the bioplastics industry

Biocarbonates: Sensible and cost-effective use of CO2

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image Creavis, the strategic innovation unit of Evonik, has been developing a solution for several years as part of a publicly-funded project called H2ECO2 which was supported by the State of North Rhine-Westphalia and the European Union.

"Our goal is to develop new products and/or processes that use CO2 as a feedstock, reduce emissions, and, are profitable," explains Dr. Daniela Kruse, Head of the Resource Efficient Chemistry Growth Line. CO2 is used as a feedstock in the production of "Biocarbonates". With these carbonates less CO2 is emitted throughout the whole life cycle compared to established products.

The production process is based on soybean oil, which is esterified in the presence of a biodiesel catalyst from Evonik. Next, epoxides are formed using hydrogen peroxide from Evonik. The final step is a carbonation reaction with CO2.

"Biocarbonates" can be used in many applications such as plasticizers for PVC and also as oil additives. In close cooperation with the Coatings & Additives and Advanced Intermediates Business Units these application fields are being studied.

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