Non-premixed fluidized bed combustion of C1-C4n-alkanes

► We investigated C1-C4 n-alkane non-premixed combustion in a fluidized bed of inert particles at temperatures: 923 K ⩽ TB ⩽ 1123 K. ► In-bed conversion increased with rising bed temperature and was estimated for C2-C4n-alkanes with one set of critical bed temperatures. ► The combustion was modeled with first-order global kinetics and one PFR model for the main fluidized bed body. ► The measured global reaction rates for C2-C4n-alkanes were characterised by a uniform Arrhenius expression. ► Methane combustion was characterized by higher critical temperatures and slower global kinetics.