Experimental and kinetic study of SO2 oxidation on a Pt/γ-Al2O3 catalyst

NO dissociation and reduction by H 2 on Pd(1 1 1): A first-principles study

“…It should be noted that the rate constant of bond breaking increases while the coverages of adsorbates decreases with increasing temperature; the increase of the former is not fast enough to compensate for the decrease of the coverages of intermediates at high temperature, and consequently, a maximum conversion rate reaches at an optimum temperature range. Similar cases can also be found for some other catalytic reactions on metal surfaces [54][55][56]. Our result agrees with the experimental observation that N 2 reaches its maximum formation rate at around 600 K and NH 3 and H 2 O reach their maximum formation rates at around 530 K [22].…”

Acceleration of Trimethylamine Removal Process Under Synergistic Effect of Photocatalytic Oxidation and Surface Discharge Plasma Reactor

“…At high values of TMA inlet concentration, the TRE will tend to a limit. As expected, the behaviour is similar to what is reported in the literature for some VOCs and other pollutants such as NH 3 and SO 2 . Moreover, the increase of flowrate also leads to a decrease of TRE.…”

“…Numerous studies have explored oxidation with different catalysts such as Pt/γ‐Al 2 O 3, ZrO 2 ‐Supported Pd Catalysts, TiO 2, CeO 2 , ZrO 2 , and MgO . Moreover, several studies have been conducted to show the application of catalytic oxidation for NH 3 removal and for SO 2 oxidation . Other studies measured the ability of TiO 2 to treat air pollution .…”

Kinetic study of adsorption and desorption of SO2 over γ-Al2O3 and Pt/γ-Al2O3

“…A MKS MultiGas MG-2030 FT-IR analyzer was used for the gas phase concentration measurements in the TPD experiments. The instrument was set to measure a data point every 0.5 seconds at a resolution of 0.5 cm -1 and the outlet gas concentrations were measured using SO2 and SO3 calibration methods developed in-house [21].…”

“…We have shown in our previous work [21] that non-trivial SO2 oxidation on Pt/γ-Al2O3 starts at around 250°C which is outside the temperature domain commonly seen in the exhaust. The lower concentration of the resulting SO3 also implies lower H2SO4 formation.…”