机构地区: 中国科学院广州能源研究所
出 处: 《太阳能学报》 2003年第3期376-379,共4页
摘 要: 以白云石为载体制备的Ni基催化剂对松木粉在 70 0℃下气化产生的焦油进行了催化裂解实验研究 ,并与重油裂解催化剂进行了对比。结果表明 :石油化工重油裂解催化剂对生物质气化焦油具有一定的催化裂解作用 ;Ni的掺入方式和催化剂的煅烧温度对催化剂的性能具有显著的影响。以 10 0~ 12 0目白云石粉为载体 ,90 0℃下煅烧的Ni基催化剂在 70 0℃下焦油裂解对H2 和CH4具有很好的选择性 (H2 为 78.3% ,H2 +CO为 92 .3% ,CH4为 2 .3% ) ;10 0h老化实验显示H2 /CO随催化剂活性降低而逐渐减小。 Study on biomass tar made of pine powder gasified using Ni base catalyst with dolomite carrier at 700°C was worked out and compared with heavy oil cracking catalyst. The result indicates: heavy oil catalyst has a role in cracking biomass tar, the impregnation type of nickel base on dolomite and calcinations temperature affect catalytic performance remarkably. Ni base catalyst was calcined at 900°C with good selectivity to H2 and CH4 (H2 78.3%, H2+CO 92.3%, CH4 2.3%), the ageing test (l00 h at 700°C) indicated that the ratio of H2/CO decreases with catalyst activity reducing.
领 域: [化学工程] [动力工程及工程热物理]