BIOMASS GASIFICATION WITH DOLOMITE AS CATALYST IN A SMALL FLUDIZED BED: EXPERIMENTAL AND MODELING ANALYSIS
Purpose Actually, one of the main goals to be achieved in biomass gasification is the minimization of tar concentration together with the optimization of the gas composition. An extensive experimental campaign has been done to test the effect of Chinese dolomite as catalyst on tar cracking and gas composition. In this paper, the experimental data collected are presented. The data have been used to tune an equilibrium model up. Some results will be shown. Methods The biomass gasification tests have been run in a small-scale atmospheric fluidized bed gasifier using pure oxygen as gasifying agent. The plant is equipped with a ceramic and a catalytic filter. Different types of Chinese dolomites have been used as catalyst. The gas yielded has been analyzed before and after the catalyst. Results The dolomite cuts done the tar concentration. Furthermore, a slight effect on gas composition has been underlined. An equilibrium model, written in Matlab environment, has been developed to foreseen the syngas composition. The experimental data have been used to tune the model up. Main conclusions Several biomass gasification tests have been performed to assess the dolomite effect on the syngas and tar composition. The results have been used to tune an equilibrium model up. The model has been modified with some experimental data and it seems to predict with good accuracy the syngas composition.
biomass gasification dolomite equilibrium model
M. BARATIERI E. PIERATTI T. NORDGREEN M. GRIGIANTE
Free University of Bozen, Faculty of Science and Technologies, Bozen, Italy University of Trento, Department of Civil and Environmental Engineering, Trento, Italy Department of Chemical Engineering and Technology, KTH, Stockholm, Sweden
国际会议
北京
英文
348-353
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）