The integration of TG-FTIR-MS with a novel M-DAEM kinetic model offers robust insights into reaction mechanisms and pollutant formation. However, two critical questions arise:
1. The M-DAEM model demonstrates reduced activation energy for volatile decomposition with RS addition, but how transferable are these kinetic parameters to other biomass types or operational scales (e.g., pilot-scale reactors)? The sensitivity analysis focuses on local deviations (±20%), but global sensitivity methods (e.g., Sobol indices) could better quantify interactions between parameters and their impact on model predictions.
2. While RS suppresses NOx precursors (HNCO, NH3) and alkali metals in SS catalyze NO reduction, what is the quantitative contribution of each pathway (e.g., CO2-mediated vs. alkali-metal-catalyzed reduction) to overall NOx abatement? A detailed speciation of nitrogen intermediates (e.g., HCN/NCO ratios) via additional MS data or isotopic labeling could clarify dominant reaction pathways under varying blend ratios.