Toluene Removal By A Sequential Adsorption-Thermal Catalytic Process On Ag/Hopcalite

Sonar, Shilpa
Giraudon, Jean-Marc
Lamonier, Jean-Francois
Morent, R.
de Geyter, N.
Löfberg, Axel

Open link

Publication date

December 2022

DOI

10.1002/cctc.202200926

Publisher

Wiley

Abstract

International audienceHopcalite supported Ag (wt.%: 0.5; 1; 2; 10)-containing materials were prepared by wet impregnation followed by calcination at 400 °C for adsorption-thermal catalytic oxidation of toluene. Based on breakthrough experiments, the duration of the adsorption step was set around 38 min to minimize toluene loss at the outlet of the reactor (<3 mol% of the amount of toluene adsorbed) allowing to determine a dynamic useful adsorption capacity for toluene. Thermal oxidation was performed in a He : O2 (75 : 25) gaseous mixture from 20 °C to 250 °C (90 min) to assess the catalytic properties of the bifunctional materials throughout on-line monitoring of unreacted toluene and CO2 during the temperature programmed reaction. Hop-0.5...