Adsorption characteristics of SO2 NO by steam activated biomass chars
Wheat straw and rice husk collected from the suburb of Nanjing,China,were prepared to different kinds of steam activated biomass-based chars,and the adsorption characteristics of the biomass-based chars was carried out in a fixed bed reactor.The specific surface area and pore structure of different biomass chars were measured by nitrogen adsorption-desorption analysis instrument at 77K.The effects of biomass type,pyrolysis temperature,heating rate,activation temperature and concentration of SO2,NO on the adsorption efficiency of SO2,NO were analyzed.The results indicated that the steam activation has significant effects on the specific surface area,total pore volume and micro-morphology of biomass chars by improving the internal structure.The adsorption efficiency of SO2,NO increased with the decreasing of SO2,NO concentration in the experimental range.The optimal condition of char preparation (873K,fast pyrolysis) and steam activation (1073K) was proposed based on the adsorption efficiency and adsorption volumn of SO2,NO.It builds a theoretical basis for industrial applications of biomass.
biomass char steam activation adsorption SO2 NO
Fei Lu Tong Shu KuanWang Ping Lu
School of Energy and Mechanical Engineering,Nanjing Nomnal University,Nanjing 210042,China
国际会议
The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)
哈尔滨
英文
209-212
2011-07-19（万方平台首次上网日期，不代表论文的发表时间）