【作者】 刘海波；

【导师】 陈天虎；

【作者基本信息】 合肥工业大学 ， 环境工程， 2010， 硕士

【摘要】 本文在国内外专家学者研究的基础上,建立了实验室规模的固定床生物质焦油催化裂解室验系统和整套的气体分析、积炭分析、固体催化剂分析方法。探究了凹凸棒石粘土/白云石比对催化裂解生物质焦油的影响。选用了几种常见催化裂解生物质焦油的天然矿物催化剂负载相同组分的镍催化裂解焦油并与石英砂的热裂解对比,结果表明凹凸棒石粘土负载镍催化剂对焦油具有较好的催化效果。随后考察了不同助剂及助剂负载量对凹凸棒石粘土镍基催化剂催化裂解焦油的影响,发现Fe、Mg、Mn、Ce中,Fe对催化剂具有最佳的修饰效果,大大提高了生物质焦油的去除率和氢产率。最后着重探究了镍负载(铁负载量)对凹凸棒石粘土负载6%铁(镍)的影响,并初步探究了催化剂制备方法对催化裂解生物质焦油的影响以及简单概述了凹凸棒石粘土负载铁镍纳米材料催化裂解生物质焦油的机理。更多还原

【Abstract】 Based on the previous work, a system with a laboratory-scale fixed-bed reactor to catalytic cracking of biomass tar and a complete method of gases analysis, carbon deposition analysis and solid catalyst characterization are established in this paper. Effect of the ratio between palygorskite clay and dolomite on catalytic cracking of biomass tar is investigated. The same loading of Ni is supported on different natural mineral to catalytic cracking of biomass tar, which is compared with thermal cracking of biomass tar over quartz. The result shows that palygorskite-supported Ni perenst the best catalytic activity. Then effect of different additives and additives loading on catalytic cracking of biomass tar is studied. The result presents that catalyst have the best tar conversion and hydrogen yield when it is modified by Fe during the additives of Fe, Mg, Mn, Ce. The effect of Ni (Fe) loading on catalytic cracking of biomass tar over palygorskite-supported 6% Fe (Ni) catalyst is researched. The effect of catalyst preparation method on catalytic cracking of biomass tar is investigated and the mechanism of catalytic cracking of tar over palygorskite-supported Fe/Ni nanomaterials is analyzed simply.更多还原