Hydrogasification of wood for high heating-value gas production X: effect of pretreatment of Japanese oak bark by HNO3 oxidation on subsequent iron-catalyzed hydrogasification.

摘要: Japanese oak bark, which is one of the most difficult woody biomass materials for iron-catalyzed lowtemperature (<700°C) hydrogasification, was subjected to HNO3 oxidation as pretreatment after prewashing with water. The effect compared that HCl demineralization from four points view: (1) removal catalyst poisons; (2) development porosity in cell tissue; (3) introduction ion-exchanged iron; and (4) reduction nitrogen sulfur. It found HNO3-oxidized bark char loaded iron by ion-exchange method gave a satisfactory reactivity agreement corresponding larch previously used. Also, contained only small amounts These situations confirmed high suitability combined water biomass.