Ni/凹凸棒石催化裂解生物质焦油组分甲苯  

CATALYTIC CRACKING OF BIOMASS TAR ON Ni/PALYGORSKITE

作　　者：陈天虎[1] 施培超[1] 张先龙[2] 宋磊[1] 石莹[1] 李金虎[1] 

机构地区：[1]合肥工业大学资源与环境工程学院,合肥230009 [2]合肥工业大学化学工程学院,合肥230009

出　　处：《太阳能学报》2011年第10期1506-1510,共5页Acta Energiae Solaris Sinica

基　　金：国家高技术研究发展(863)计划(2007AA06Z118);国家自然科学基金(50774027);安徽省自然科学基金(070415206)

摘　　要：以大比表面积的天然纳米矿物凹凸棒石为载体,利用等体积浸渍法制备出Ni/凹凸棒石催化剂。以甲苯为生物质焦油的模型化合物,在CO_2气氛下研究Ni/凹凸棒石催化剂对甲苯的催化裂解性能。采用XRD、TEM等分析手段对制备的催化剂进行表征,然后在气-固相催化实验装置中考查CO_2浓度、反应温度和Ni担载量对H_2产量和积碳量的影响。结果表明:随着CO_2浓度和反应温度的升高,H_2产量呈下降趋势;增加Ni担载量,有利于提高H_2产量;提高CO_2浓度和反应温度,积碳量减小。Large surface area palygorskite supported with Ni catalyst was prepared by equal volume impregnation. Catalytic cracking experiments on biomass tar were made on Ni/palygorskite with toluene as a model compound in the presence of CO2. The samples were characterized by XRD and TEM. The impacts of reaction temperature, amount of Ni and amount of CO2 on H2 yield and carbon deposit were researched in a temperature-ontrolling stove. The results showed that the H2 yield and amount of carbon deposit decreased with incresed of CO2 content and reaction temperature. However, the H2 yield increased.

关 键 词：甲苯 凹凸棒石 CO2 生物质焦油 催化重整 

分 类 号：S216.2[农业科学—农业机械化工程]