前驱体对Ni/ZSM-5催化重整松木屑制氢性能的影响  

Effect of precursors on pine sawdust steam reforming over Ni/ZSM-5 catalyst for hydrogen production

作　　者：苏砚鑫 王学涛[1] 邢利利 李浩杰[1] 张兴宇 SU Yanxin;WANG Xuetao;XING Lili;LI Haojie;ZHANG Xingyu(Department of Energy and Power Eengineering,Henan University of Science and Technology,Luoyang 471003,China;School of Energy and Power Engineering,Qilu University of Technology,Jinan 250353,China)

机构地区：[1]河南科技大学能源与动力工程系,河南洛阳471003 [2]齐鲁工业大学能源与动力工程学院,济南250353

出　　处：《综合智慧能源》2023年第5期32-38,共7页Integrated Intelligent Energy

基　　金：国家自然科学基金项目(50806020);河南省科技创新杰出青年基金项目(114100510010);河南省科技攻关计划项目(152102210280)。

摘　　要：以生物质为原料的可再生资源具有运输便捷、资源丰富、来源广泛、减少薪柴类废弃物焚烧等优点,开发以生物质为原料的高效蒸汽重整制氢对实现绿色清洁燃料的工业应用具有重要意义。采用浸渍法分别以乙酸镍、硝酸镍、氯化镍、硫酸镍为前驱体负载于ZSM-5分子筛载体制备了4种催化剂,用固定床反应器考察4种催化剂对松木屑生物质催化重整的催化活性,分析合成气中氢的体积分数并对催化剂进行X射线衍射、氨程序升温脱附、氢程序升温还原、扫描电子显微镜表征测试。结果表明:乙酸镍与载体之间有较高的相互作用,镍物种在催化剂表面均匀分散,降低了颗粒的聚集、积碳,Ni-AC催化剂对松木屑的催化重整活性最高,合成气中氢气的体积分数达60.47%,Ni-S催化剂对生物质催化重整活性最低。研究结果可为生物质资源高效回收利用提供理论支撑。Since the renewable resources made from biomass are convenient in transportation,abundant in reserves,easy to access and able to reduce the consumption of fuel wood,the development of efficient hydrogen production from steam reforming of biomass is important for the industrial application of green and clean fuels.The impregnation method was used to prepare four kinds of catalysts with nickel acetate,nickel nitrate,nickel chloride and nickel sulfate as precursors loaded on ZSM-5 molecular sieve carriers.The catalytic activity of the four catalysts in the catalytic reforming of pine sawdust biomass was investigated on a fixed bed reactor.The volume fraction of hydrogen in the syngas was analyzed,and the catalysts were characterized by XRD,NH3-TPD,H2-TPR and SEM.The results showed that nickel acetate demonstrated fairly active interactions with the carrier,and the nickel species uniformly dispersed on the surface of the catalyst,so as to reduce the aggregation and carbon deposition of particles.The Ni-AC catalyst was of the highest activity in the catalytic reforming of pine chips,and the volume fraction of hydrogen in the syngas reached 60.47%,while the Ni-S catalyst was of the lowest activity on the catalytic reforming of biomass.The study results can provide theoretical support for the efficient recycling of biomass resources.

关 键 词：生物质 绿色清洁燃料 高效蒸汽重整制氢 松木屑 前驱体 催化剂 催化重整 

分 类 号：TK6[动力工程及工程热物理—生物能] O643.3[理学—物理化学]