摘要
以堇青石为载体，采用真空浸渍法制备整体式镍基催化剂，研究了不同干燥方法对整体式催化剂内表面活性组分轴向分布的影响及不同工艺条件下的催化性能。结果表明：微波干燥法所得催化剂内表面活性组分轴向分布最均匀；重时空速对焦油裂解率的影响较大，当重时空速为177kg／（h·m3）时，焦油裂解率高达92．62％，H2的体积分数为46．53％；在较低温度条件（700～800％）下，催化温度对焦油裂解的影响较小，当催化温度上升到900℃时，焦油裂解率大幅上升，单位质量生物质气体产率高达1．22Nm3／k。
The Ni-based monolithic catalyst was prepared by vacuum impregnation with the support of cordierite. The influences of different drying methods to the axial distribution of active constituent in monolithic catalyst internal surface and the catalytic performance under different process conditions was studied. The results show that the axial distribution of catalyst internal surface active constituent is more homogeneous after microwaves drying. The weight hour space velocity （WHSV） has great influence on tar cracking rate. When the WHSV is 177kg/（h·m3）, the tar crocking rate is 92.62% and H2 volume content is 46.53%. When the catalytic temperature is between 700- 800℃, the variety of tar cracking rate is small, but when catalytic temperature rises to 900℃, the tar cracking rate can increase greatly and the gas yield can reach 1.22Nm3/kg per dried biomass.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2011年第4期451-455,共5页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(50606037)
中国科学院知识创新工程重要方向项目(KGCX2-YW-335)
关键词
堇青石
整体式催化剂
焦油裂解率
重时空速
催化温度
cordierite
monolithic catalyst
tar conversion
weight hour space velocity
catalytic temperature
