Title: Energy Transition in Miniature: Combining Catalysis and Reaction Engineering at a Particle Level
Venue and time : Wednesday, 05 March 2025, 0400 pm, ChE Seminar Hall
Abstract:
Regarding global warming and particularly for the German Energiewende, effective methods of storing energy from sustainable sources are becoming increasingly important. The so-called power-to-gas (PtG) concept is a much noticed approach. Hereby the energy from renewable sources is converted into hydrogen via electrolysis of water followed by converting with CO2 into methane (so-called CO2 methanation). In the first part a synthesis, characterization and catalyst testing study will be presented. The approach leads to a new generation of Ni-based catalysts for CO2 methanation. Microkinetic modeling is used to understand the structure-activity relationship for this group of catalyst. The second part will deal with the shape of the catalyst.
Since the geometry of industrially applied catalysts is limited to simple shapes by the established manufacturing techniques such as extrusion, tabletting and pelletizing, additive manufacturing of
catalysts is applied as alternative to enable complex geometries. Novel, innovative geometric designs of the catalyst moldings are expected to provide improved properties in the accessibility (effectively accessible surface area), fluid dynamics and heat and mass transfer.
Since the geometry of industrially applied catalysts is limited to simple shapes by the established manufacturing techniques such as extrusion, tabletting and pelletizing, additive manufacturing of
catalysts is applied as alternative to enable complex geometries. Novel, innovative geometric designs of the catalyst moldings are expected to provide improved properties in the accessibility (effectively accessible surface area), fluid dynamics and heat and mass transfer.