Fig. 3: ABS trapping model by liquid phase migration.
From: Simple physical mixing of zeolite prevents sulfur deactivation of vanadia catalysts for NOx removal
a Arrhenius plots of ABS/VWTi + Z (black dot) and ABS/VWTi+Z PM L (red dot) during transient NH3-SCR reaction (temperature from 100 °C to 220 °C with ramp rate 1 °C/min, Reaction gas contains 500 ppm NO, 500 ppm NH3, 10% O2, 5% CO2, and 10% H2O balanced with N2; NOx conversion profiles in Supplementary Fig. 11a). b DFT calculation results regarding the stability of hydrated ABS by two H2O molecules on the VWTi and H–Y zeolite. c Schematic illustration of an operating principle of the ABS trapping in the VWTi + Z system.
