生物质催化气化重整制取富氢气体的实验研究  

Experimental Research on Biomass Gasification and Reforming to Produce Hydrogen-Rich Gas

作　　者：谢玉荣[1] 沈来宏[1] 肖军[1] 谢大幸[1] 

机构地区：[1]东南大学热能工程研究所,南京210096

出　　处：《西安交通大学学报》2008年第5期634-638,共5页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目(50306002);国家自然科学基金资助重大项目(20590367);国家重点基础研究发展规划资助项目(2003CB214500;2007CB210208)

摘　　要：以流化床为气化反应器，以固定床为重整反应器，进行了生物质气化与重整制取富氢气体的实验研究．在不同的气化温度条件下，探讨Ni基催化剂、Ca基催化剂和两者的机械混合型催化剂对制取富氢气体的影响．实验结果表明：随着气化反应器温度的提高，3种催化剂均促进了重质烃类的分解转化，而Ni基和混合型催化剂使轻质烃的催化转化能力得到提升；在750-950℃范围内，混合型催化剂具有最佳的催化效果，H2产率达到79．4g／kg，产物气中的H2体积分数为53．6％～59．7％；分别添加Ni基和Ca基催化剂时，H2产率分别达到64．0g／kg和57．9g／kg，产物气中的H2体积分数均达到40．3％以上．Experiments of biomass conversion to produce hydrogen-rich gas are carried out in gasification and reforming reactors. Three types of catalysts, i.e. nickel-based catalyst, calciumbased catalyst and mechanical mixture of the two catalysts, are adopted to catalyze gasification and reforming for hydrogen-rich gas. With temperature increasing,three types of catalysts show the enhanced catalytic conversion capabilities of heavy hydrocarbon, while Ni-based catalyst and mechanical mixture of the two catalysts demonstrate the upgraded catalytic reforming capacities of light hydrocarbon. In the range of 750 to 950 ℃, the mechanical mixture exerts the optimum catalytic effect. The hydrogen concentration gets 40. 3% - 49.3%, 47.9% - 54. 1% and 53. 6% - 59. 7%, respectively; and the Hz yield reaches 64. 0, 57. 9, and 79.4 g/kg, respectively, corresponding to these catalysts.

关 键 词：生物质 气化 重整 氢 催化剂 

分 类 号：TK6[动力工程及工程热物理—生物能]