Experimental evaluation and modeling of steam gasification and hydrogen inhibition in Chemical-Looping Combustion with solid fuel

► The steam and hydrogen influence on the rate of solid fuel conversion in CLC modeled. ► Higher steam concentration increases the rate of char conversion. ► Higher hydrogen concentration decreases the rate significantly. ► The best fitted model for Swedish wood char is the oxygen exchange model. ► The best fitted model for the El Cerrejon coal is the oxygen exchange model.