Dynamic irradiation is a potent option to influence the interaction between photochemical reactions and mass transport to design high performant and efficient photochemical processes. To systematically investigate the impact of this parameter, the photocatalytic reduction of nitrobenzene was conducted as a test reaction. Dynamic irradiation was realized through provoked secondary flow patterns, multiple spatially distributed light emitting diodes (LEDs) and electrical pulsation of LEDs. A combined experimental and theoretical approach revealed significant potential to enhance photochemical processes. The reaction rate was accelerated by more than 70% and even more important the photonic efficiency was increased by more than a factor of 4. This renders imposed dynamic irradiation an innovative and powerful tool to intensify photoreactions on the avenue to large scale sustainable photochemical processes.

The exponential decay of light intensity in absorbing media poses a particular challenge to the development of light-driven chemical reactions on an industrial scale. To counteract the challenges of the irradiation field, photoreactors are required to enable accelerated mass transport on both the laboratory and production scale. This contribution presents the development of a modular mini-plant photoreactor (MISCOP) designed to bridge the gap between small laboratory and industrial scale photoreactors. To improve the overall efficiency of the photoreactor, the acceleration of mass transport along the direction of light propagation through static mixers is experimentally and numerically investigated by exploiting the modularity of the photoreactor. The results reveal a significant narrowing of the residence time distribution as well as enhanced mass transport along the ray trajectory.

The development of a modular mini-plant photoreactor is presented. This reactor is designed to enable scale-up by bridging the gap between small scale laboratory and industrial scale photoreactors. To enhance the overall efficiency of the photoreactor and enable a scale-up, the acceleration of mass transport along the direction of light propagation through different static mixers is experimentally and numerically investigated through utilizing the modularity of the photoreactor. The results reveal a significant narrowing of the residence time distribution as well as enhanced mass transport along the ray trajectory.

The exponential decay of light intensity in absorbing media poses a particular challenge to the development of light-driven chemical reactions on an industrial scale. To counteract the challenges of the irradiation field, photoreactors are required to enable accelerated mass transport on both the laboratory and production scale. This contribution presents the development of a modular mini-plant photoreactor (MISCOP) designed to bridge the gap between small laboratory and industrial scale photoreactors. To improve the overall efficiency of the photoreactor, the acceleration of mass transport along the direction of light propagation through static mixers is experimentally and numerically investigated by exploiting the modularity of the photoreactor. The results reveal a significant narrowing of the residence time distribution as well as enhanced mass transport along the ray trajectory.

The exponential decay of light intensity in absorbing media poses a particular challenge to the development of light-driven chemical reactions on an industrial scale. To counteract the challenges of the irradiation field, photoreactors are required to enable accelerated mass transport on both the laboratory and production scale. This contribution presents the development of a modular mini-plant photoreactor (MISCOP) designed to bridge the gap between small laboratory and industrial scale photoreactors. To improve the overall efficiency of the photoreactor, the acceleration of mass transport along the direction of light propagation through static mixers is experimentally and numerically investigated by exploiting the modularity of the photoreactor. The results reveal a significant narrowing of the residence time distribution as well as enhanced mass transport along the ray trajectory.