Photocatalytic reaction intensification using monolithic supports designed by stereolithography

• Published in: Chemical engineering and processing Vol. 49; no. 1; pp. 35 - 41
• Main Authors: Furman, M., Corbel, S., Wild, G., Zahraa, O.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.01.2010; Elsevier
• Subjects: Air pollutant; Applied sciences; Atmospheric pollution; Catalysis; Catalytic reactions; Chemical and Process Engineering; Chemical engineering; Chemical Physics; Chemistry; Engineering Sciences; Exact sciences and technology; General and physical chemistry; Heat and mass transfer. Packings, plates; Mass transfer; Monolithic support; Photocatalysis; Physics; Pollution; Reactors; Stereolithography; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Monolithic support; Stereolithography; Photocatalysis; Air pollutant; Mass transfer; Glass; Catalytic reactor; Monolithic construction; Photochemical reactor; Design; Pollutant; Gas solid; Air pollution; Kinetics; Catalyst; monolithic support; air pollutant; mass transfer; stereolithography
• ISSN: 0255-2701; 1873-3204
• DOI: 10.1016/j.cep.2009.11.002

An original photocatalytic reactor for the treatment of polluted air is designed. The titanium dioxide is supported on various supports that consist in photopolymers and are built using the stereolithography technique and placed in a glass tube illuminated from the outside, while the air containing the pollutant to be removed flows through the glass tube and the photocatalyst support. It is shown that the gas–solid mass transfer plays a role only at the very smallest gas velocities investigated. The global depollution kinetics are then determined for the different geometrical forms of the photocatalyst support and the efficiency of the forms compared.