Name : The 46th Conference of Coal Science
Number : 46
Location : [in Japanese]
Date : November 26, 2009 - November 27, 2009
Pages 74-75
Steam gasification of low rank coals has been studied with a fixed bed quartz reactor. Composite Na/Fe catalysts prepared by using inexpensive natural soda ash and limonite ore are more active at 700℃ than each component, and the largest char conversion reaches 85% after 1h. The XRD measurements after reaction reveal the transformation of Fe_3O_4 and FeO into FeO and α-Fe as the amount of the soda ash co-loaded increases. The formation of the more highly-reduced Fe species may account for the higher activities of the binary catalysts.
