Coal–biomass blended char was gasified with CO2 in the presence of CO.
Inhibition effect of CO on char-CO2 gasification was studied.
Langmuir–Hinshelwood (L-H) equation was used to describe the CO inhibition effect.
Random pore model was used to interpret the carbon conversion data.
L–H kinetic parameters were obtained and expressed in an Arrhenius equation form.