Steam pulsed gasification of Na2CO3 or Fe(NO3)3 loaded Yallourn coal char

Abstract Pulsed H2O gasification of Yallourn coal char (prepared at 1073 K for 30 min under argon) loaded with Na2CO3 or Fe(NO3)3 revealed that reaction of H2O with metallic Na or Fe, formed during preheat-treatment of the char at 1273 K under flowing helium, occurred at a temperature as low as 873 K to give H2 and metal oxides. However, oxygen transfer from the metal oxides to carbon in the char to give CO was only observed above 1023 K.