Compact, Global-Skeletal Reaction Mechanisms for Combustion of o-Xylene/Air and 1-Butanol/Air

Spray flame pyrolysis is a versatile method to produce metal oxide nanoparticles in a cost-effective and material-effective way. The spray of dissolved metal salts allows one to circumvent the limit of vapor pressure for gaseous particle precursors. Some of the widely used combustible, low-cost solvents for metal salts are xylene and 1-butanol. Coupling global fuel breakdown reactions with the skeletal reaction kinetics of C-2 and hydrogen components is an elegant path to develop compact and sufficiently detailed combustion mechanisms. In our current work, we present the development, reduction, and validation of the global-skeletal reaction schemes for o-xylene and 1-butanol combustion for a wide range of equivalence ratios at low and atmospheric pressure. The reduced mechanisms of o-xylene and 1-butanol consist each of 24 species and 36 reactions. The developed mechanisms are in good agreement with the reference data for the laminar flame speed, temperature profiles, and concentration profiles of selected species. Overall, the reduced skeletal mechanisms show good performance with a short computational time, making them suitable for fluid dynamics simulations using a finite-rate chemistry approach.