Ni-Zn/玄武岩催化剂生物质催化气化实验  

Experiment on Biomass Catalytic Gasification of Ni-Zn/Basalt Catalyst

作　　者：牛永红[1] 田一鸣 NIU Yonghong;TIAN Yiming(School of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou 014010,China;Jincheng Urban Planning and Design Institute,Jincheng 048000,China)

机构地区：[1]内蒙古科技大学能源与环境学院,包头014010 [2]晋城市规划设计研究院,晋城048000

出　　处：《农业机械学报》2019年第6期331-337,共7页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金地区科学基金项目(51768054、51764046);内蒙古自治区自然科学基金面上项目(2017MS(LH)0524);内蒙古自治区教育科学研究“十三五”规划项目(NGJGH2017089);校企合作项目(2018073)

摘　　要：采用一步水热法原位合成工艺制备了Ni-Zn/玄武岩复合催化剂,对催化剂微观形貌和表面元素分布进行了表征。以松木颗粒为原料、水蒸气为气化剂,采用下吸式管式气化炉实验平台,研究了Ni-Zn/玄武岩复合材料在不同温度下高温蒸汽的催化气化效果,通过考察气体组分变化,探讨NiZn/玄武岩复合催化剂催化性能随温度变化的规律,并与无催化剂和以白云石为催化剂的催化性能进行实验对比。实验结果表明:水热反应温度为130℃,反应时间为12h时,Ni、Zn能很好地负载在玄武岩纤维表面;与不加催化剂和加入白云石催化剂相比,Ni-Zn/玄武岩复合催化剂气化温度在950℃时催化效率明显提升,氢气体积分数增加明显,分别由无催化剂时的58.6%、加入白云石催化剂时的50.02%升高至63.28%。The Ni-Zn/basalt composite catalyst was prepared by the method of in-situ hydrothermal. The microstructure and surface element distribution of the catalyst was characterized. Taking the pine particles as raw materials and water vapor as the gasification agent,and the test system platform of the lower suction tubular gasifier was adopted. Ni-Zn/basalt composite material was studied at different temperatures of high temperature steam catalytic gasification effect. Through investigating the changes in gas composition,the variation laws of the catalytic properties of Ni-Zn/basalt composite catalyst with temperature variation were studied. The result was compared with the contrast experiments with no catalyst and dolomite as catalyst performance. The experimental results showed that Ni and Zn could be well supported on the surface of basalt fiber with the reaction temperature of 130℃ and the reaction time of 12 h. Compared with no catalyst and adding dolomite catalyst,Ni-Zn/basalt composite catalyst gasification temperature at 950℃,the catalytic efficiency was improved significantly and the hydrogen volume fraction was significantly increased. The hydrogen volume fraction was increased to 63. 28% while without catalyst,the hydrogen volume fraction was only 58. 6% and with dolomite catalyst,the hydrogen volume fraction was 50. 02%. It can be seen that Ni-Zn/basalt composite catalyst has high efficiency in the catalytic gasification reaction of pine sawdust. It can provide theoretical and experimental basis for further improving biomass gasification technology.

关 键 词：NiZn/玄武岩 松木屑 催化 生物质气化 

分 类 号：TK6[动力工程及工程热物理—生物能]