(62c) The Performance of Mn in Dry-Reforming Toluene As a Model Compound of Tar for Biomass Gasification

Tar as a by-product which derived from biomass gasification will decrease calorific value of produced flammable gases and block proceeding tubes. In this contribution, carbon dioxide reforming with toluene was selected as a modle reaction to produce syngas, the performance of Mn additives in Ni/MgO catalyst was investigated to improve further the conversion of toluene. It was found that the adding method plays a crucial role in catalytic activity. By the general impregnation and precipitation method, the presence of Mg₆MnO₈ phase caused a worse conversion of toluene because of the damagement in solid solution enviroment between NiO and MgO. However, adding MnO₂ into catalyst by a simple physical milling method, catalytic performance was improved due to MnO can redistribute the active Ni species which facilities a higher reduction degree and a suitable particle size of Ni.