镧对镍基催化剂催化生物油模型物重整制氢的影响  

Effect of lanthanum additive on nickel-based catalyst for hydrogen production by catalytic steam reforming of ethanol

作　　者：沈朝萍[1] 陈明强[1] 刘少敏[2] 杨忠连[1] 王一双 朱传浩[1] 

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001 [2]安徽理工大学地球与环境学院,安徽淮南232001

出　　处：《现代化工》2015年第8期133-136,共4页Modern Chemical Industry

基　　金：国家自然科学基金(21376007);国家科技支撑计划(2014BAD02B03);安徽省教育厅自然科学基金重点项目(KJ2012A070)

摘　　要：以镍基催化剂为主体,镧为助剂,采用浸渍法制备负载型镍基催化剂,并用于固定床生物油模型物(乙醇)水蒸气重整制氢工艺。考察了La2O3的负载量、催化剂质量、反应温度以及催化剂重整反应时间对重整反应制氢的影响。实验结果表明,获得最高氢气产率的较优工艺条件为:La2O3的负载量为6%,催化剂质量为75 g,反应温度为700℃;镧助剂提高了镍基催化剂的稳定性。Using lanthanum as the additive, the nickel-based catalysts are prepared by the impregnation method and are applied in fixed bed bio-oil model compound （ethanol） steam reforming for hydrogen production. The influences of the La2O3 loading of catalysts, the amount of catalyst, reaction temperature and the time of reforming reaction on the catalytic reforming for hydrogen are studied. The optimal operating conditions to obtain highest yield are shown as follows：6% of La2 O3 loading,75 g of the amount of catalysts and 205 ℃ of reaction temperature. The lanthanum additives improve the stability of the nickel-based catalyst.

关 键 词：乙醇 镍基催化剂 镧助剂 固定床 制氢 

分 类 号：TK6[动力工程及工程热物理—生物能]