Solids undergo combustion by first pyrolyzing or vaporizing into the gas phase where oxidation occurs
the verdict
SUPPORTED
the evidence backs this
confidence 84/100
Solids undergoing combustion typically first thermally decompose or vaporize into volatile gases, which subsequently react with oxygen in the gas phase.
Evidence for · 3
Smoldering and spontaneous transition to flaming over horizontal cellulosic insulation
2019 · cited by 30
Paper 0 describes solid fuel combustion transitions involving pyrolysis supplying volatile gaseous fuel for subsequent gas-phase oxidation reactions.
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More for · 2
Structural analysis of biomass pyrolysis and oxidation using in-situ X-ray computed tomography
2021 · cited by 28
Paper 1 measures the heterogeneous processes of biomass combustion, separating the propagation of the solid pyrolysis front from gas-phase temperatures and flame anchoring.
A Methodology for Measuring the Heat Release Efficiency in Bubbling Fluidised Bed Combustors
2020 · cited by 15
Paper 2 discusses how thermal conversion of solid fuels releases pyrolysis products into the freeboard where they undergo further gas-phase oxidation.