Naslov
Emerging monolithic catalysts for the catalytic oxidation of aromatic volatile organic compounds

Autori
Car, Filip ; Tomašić, Vesna ; Vrsaljko, Domagoj

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
27th Croatian Meeting of Chemists and Chemical Engineers / Marković, Dean ; Meštrović, Ernest ; Namjesnik, Danijel ; Tomašić, Vesna - Zagreb, 2021, 296-296

Skup
27. hrvatski skup kemičara i kemijskih inženjera (27HSKIKI)

Mjesto i datum
Veli Lošinj, Hrvatska, 05.10.2021. - 08.10.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
aromatic volatile organic compounds (AVOCs), catalytic oxidation, monoliths, 3D printing

Sažetak
The preparation of monolithic catalysts with high activity and stability is crucial for the catalytic oxidation of aromatic volatile organic compounds (AVOCs). Monoliths are mainly used as inert carriers for various catalytically active components, which are subsequently deposited on the monolithic structure. This work aimed to examine the adhesion between 3D-printed ceramic (SiO2) catalyst carriers (plates) and the catalytically active layer (manganese based mixed oxides). Two methods, impregnation and sol-gel method, were chosen for the deposition of the catalyst layer on inert ceramic carriers (Figure 1). The mechanical stability, i.e. the adhesion of the catalytic layer to 3D-printed ceramic plates was tested by exposing the coated plates to the ultrasonic vibrations, i.e. by determining the difference in mass of individual plates before and after the exposure. Due to the low mass loss of the catalyst (<2 %) for all prepared carriers, both methods of applying the catalytically active layer showed to be suitable for their production from the point of view of mechanical stability. However, there is a possibility of partial blocking of the catalytically active sites due to the structure of the sol, which could negatively affect the catalytic properties of the prepared monolithic catalysts in the same temperature range compared to the impregnation method. To test this hypothesis in the continuation of the research, special emphasis will be placed on these tests in the monolithic reactor.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA