林产化学与工业Issue(2)：17-24,8.DOI:10.3969/j.issn.0253-2417.2015.02.003
生物质热裂解反应器对镍/木炭催化剂重复使用过程中积炭的影响研究
Effect of Biomass Pyrolysis Reactor on Carbon Deposition of Ni/Char Catalysts during Repeat Experiments
摘要
Abstract
In order to investigate the effect of the type of reactor on carbon deposition and service life of Ni based catalysts in the process of biomass pyrolysis, a Ni/char catalyst was reused in a two-stage reactor and a three-stage reactor. The effects of pyrolytic volatiles from fir wood sawdust on the weight of catalyst were also studied. The results showed that the changes in the Ni/char weight depended on the two pathways, i. e. , the carbon deposition on the catalyst by the thermal cracking, and carbon losing by oxidation in the cracking process of fir wood sawdust. It was found that the carbon deposited on the Ni/char catalyst was more difficult to be oxidized than the char used as the carrier. The deposited carbon was presented in a form of carbon nanofibers. The Ni/char catalyst has longer cycle life in the three-stage reactor than that in the two-stage one. As a result, the three-stage reactor was recommended in the process of biomass gasification due to remarkable reduction of the cost in biomass gasification.关键词
生物质热解/Ni/木炭催化剂/使用寿命/积炭Key words
biomass pyrolysis/Ni/char catalyst/service life/carbon deposition分类
化学化工引用本文复制引用
邵晴莉,左宋林,肖志良,夏海岸..生物质热裂解反应器对镍/木炭催化剂重复使用过程中积炭的影响研究[J].林产化学与工业,2015,(2):17-24,8.基金项目
国家自然科学基金资助项目(31270621) （31270621）
