Alexander Peschl, Managing Director of Peschl Ultraviolet GmbH, and Prof. Dr. Dirk Ziegenbalg, Head of the Photochemical Reaction Engineering Group at the Institute of Chemical Engineering at Ulm University, discussed pioneering opportunities for collaboration in the field of photochemistry during their visit to Hahn-Schickard in Ulm. Photoreactors use light energy to initiate chemical reactions, enabling…

The smallest photoreactor from Peschl Ultraviolet can perform nine irradiation experiments in parallel with very small sample quantities – LEDs are thermally decoupled by means of thermoliquid. The innovative photochemical screening device consists of nine vials (cells), each with a volume of 8 ml, which can be irradiated simultaneously with nine different wavelengths. The intensity…

Different photochemical reactions require photoreactors designed for the respective process. In addition to side-loop, falling film and plug or pulsed flow photoreactors, stirred photoreactors play an important role, especially for halogenation / radical reactions as well as multiphase reaction mixtures and large production volumes. Different photochemical reactions require photoreactors designed for the respective process. In…

For decades, special medium-pressure gas-discharge light sources have been the standard technology used in photoreactors to carry out photochemical reactions. While gas-discharge lamps often have an efficiency of just 5-7% depending on the wavelength, LED light sources offer up to 60% efficiency with high selectivity. However, some obvious technical problems had to be solved, prior…

The research and development project: „Development of new LED-Light Sources for use in Plants for efficient Irradiation Systems to reduce the CO2 footprint” is funded by the European Union from the European Regional Development Fund.