In July 2020 the book “CO2 and CO – Sustainable Carbon Sources for the Recycling Industry” was published. The editors from the Cluster of Industrial Biotechnology (CLIB) present new sustainable carbon sources for the chemical and fuel industry that are climate-friendly and take into account the change in raw materials. Prof. Dr. Thomas Happe (Ruhr-University Bochum) and Dr. Christina Marx (SolarBioproducts Ruhr, Herne) as CLIB network partners have written the chapter on “Alternative biological and biotechnological processes for hydrogen production”.

The energy industry is by far the largest consumer of fossil raw materials, but the chemical industry also requires large quantities of fossil-based raw materials. A move away from oil and other fossil raw materials is absolutely essential, especially for climate protection and sustainability. However, since a chemical industry without carbon sources is impracticable, the development of other renewable carbon sources is the only alternative.

The book deals with the material use of carbon-containing gas flows and explains the basics of the corresponding chemical and biotechnological processes for a carbon cycle economy. Hydrogen is needed for the reduction of CO2 and CO, therefore hydrogen production processes like water electrolysis using renewable energies are presented. But also alternative biological and biotechnological processes for hydrogen production are discussed in chapter four by Prof. Dr. Thomas Happe and Dr. Christina Marx. The two researchers discuss the question which biological metabolic pathways and biotechnological processes are available to produce hydrogen without emissions. Substrates and energy sources from which bacteria, microalgae and biocatalysts generate hydrogen are presented and the corresponding process conditions or limiting and supporting factors are discussed.

The idea and concept of the book, which was published by Springer-Verlag, came from the editors Manfred Kircher and Thomas Schwarz of the CLIB network. The Cluster combines international and national experts from research and industry who are active in the field of industrial biotechnology. Since 2017 the Herne-based project office SolarBioproducts Ruhr has been a member of the cluster.