Abstract
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 (1,073K) was proposed based on the adsorption efficiency and adsorption volume of SO2, NO. It builds a theoretical basis for industrial applications of biomass.
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Acknowledgment
This work was supported by National Natural Science Foundation of China (51076067) and Jiangsu Provincial National Science Foundation of China (BK2010081).
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© 2013 Springer-Verlag Berlin Heidelberg & Tsinghua University Press
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Lu, F., Shu, T., Wang, K., Lu, P. (2013). Adsorption Characteristics of SO2, NO by Steam Activated Biomass Chars. In: Qi, H., Zhao, B. (eds) Cleaner Combustion and Sustainable World. ISCC 2011. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30445-3_42
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DOI: https://doi.org/10.1007/978-3-642-30445-3_42
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