Glass-fiber catalysts for selective catalytic reduction of nitrogen oxides by CO and hydrocarbons

Fibrous Material Structure Developments for Sustainable Heterogeneous Catalysis – An Overview

“…[142] An intensively studied material route is illustrated by Zagoruiko et al, highlighting the production of mechanically self-sustaining catalytic 3D cartridges with a tunable shape and internal geometry, avoiding the need for additional structuring and support elements. [143,[172][173][174][175][176] Such GFC cartridges are charac-terized by a quite high mass transfer efficiency and a low pressure drop. Various geometries are used to tune the structure of the packing (Figure 10).…”

“…This resulted in the promising use of these catalysts in various reactions such as the deep oxidation of hydrocarbons, organic and halogen-organic compounds, the oxidation of SO 2 and H 2 S, and the selective hydrogenation of acetylenes. [143,[172][173][174]176,177] Despite that these catalysts have a high industrial potential, there are still various optimizations that need to be investigated concerning amongst others diffusion limitations by improving the mass transfer, both experimentally and with modern advanced modeling methods (e. g. computational fluid dynamics (CFD)). [143] To model these complex systems, simplifications are required, such as reducing the channel geometry from 3D to 2D or using a stationary model instead of a non-stationary one.…”

“…Specifically, functional fibrous materials are very promising materials for catalysis, as they are highly porous, have a large [176] ).…”

“…The type of weaving influences the mass transfer, and hence the apparent activity of the samples. Different weavings can be studied, e. g. an openwork (d) or a sating weave (e) (Figure adapted from Golyashova et al 2022[176] ).…”