作　　者： ; ; ; ; ; ;

机构地区： 中国科学院广州能源研究所

出　　处： 《工程热物理学报》 2008年第10期1791-1794,共4页

摘　　要： 采用分步浸渍法制备了Ni-Mg整体式催化剂,加入萘作为焦油模型化合物考察了低温等离子体耦合催化重整生物质粗燃气的性能,研究了放电条件及反应温度对催化重整制备合成气的调变作用.结果表明:高压高频放电产生等离子体耦合催化重整,对重整净化生物质粗燃气有明显效果.在重整温度为750℃,放电频率为22 kHz时CH_4的转化率可由催化重整时的86%提高到94%左右,放电条件下可以将合成气的H_2/CO比由1.06提高至1.15.温度对耦合重整影响较为显著,CH_4、CO_2的转化率均随温度的升高而升高,最高可分别达到94%和89%.加入脉冲电晕后生物质粗燃气中的焦油等复杂有机化合物的转化率达到99%以上. The Ni-Mg monolithic catalyst was prepared by impregnation. With naphthalene as tar model compound added in the experiments, the performance of plasma coupled with monolithic catalyst reforming of biomass fuel gas was investigated. The effect of discharge frequency and reforming temperature were investigated. The results show that plasma coupled with monolithic catalyst has an obvious effect on biomass fuel gas reforming. The conversion ratio of CH4 rose from 86% in dry reforming to 94% with discharge frequency at 22 kHz, the H2/CO ratio also raised from 1.06 to 1.15. Temperature is the key factor of coupled reforming, the conversion ratios of CH4 and CO2 raised with the temperature raised, the highest ratios reach to 94% and 89%. Over 99% tar in feed gas was converted to lighter hydrocarbons in both two reforming methods, but the tar species in outlet gas are different from each other, more n-alkahe were formed in coupled reforming.

关 键 词： 低温等离子体 整体式催化剂 净化重整 焦油转化

领　　域： [动力工程及工程热物理]