2Ohtsuka Y,Wu Z,Furimsky E.Effect of alkali and alkaline earth metals on nitrogen release during temperature programmed pyrolysis of coal[J].Fuel,1997,76(14-15):1361-1367.
3Wu H,Hayashi J,Chiba T,et al.Volatilization and catalytic offects of alkali and alkaline earth metallic species during the pyrolysis and gasitication of Victorian brown coal.Part V.Combined effects of Na concentration and char structure on char reactivity[J].Fuel,2004,83(1):23-30.
