自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 24    No. 3    March 2017

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Experimental investigation of performance properties and agglomeration behavior of fly ash from gasification of corncobs
YAO Xi-wen(姚锡文), XU Kai-li(许开立), LI Yang(李洋)

College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China

Abstract:The gasification industries make use of biomass residue as feedstock to produce synthesis gas, but the gasification of this waste biomass generates tons of ash everyday. Performance properties and agglomeration behavior of corncob ash (CCA) collected from the gasification of corncobs in a pilot-scale gasification station were investigated by using some experimental methods. Based on the chemical composition results, the agglomeration tendency of CCA from combustion and gasification process was also analyzed. Chemical analysis shows that the fly ash is mainly composed of inorganic matters formed by K, Mg, Ca, Na, Fe, Al, S, etc. The agglomeration characteristics indicate that the slagging degree increases with the increase of ashing temperature, and the slagging tendency of these CCA samples from gasification or combustion is different with various slagging indices. All CCA samples from combustion or gasification can cause slagging/fouling problems in thermal conversion systems. The applications of CCA are closely related to its performances, and CCA has the potential to be used in various fields, for example, as a material for ceramic products and activated carbon, as an adsorbent, as a crude fertilizer, and as a structural material.

 

Key words: biomass gasification; corncob; fly ash; agglomeration behavior; characterization

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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