Abstract
The aim of this study was to identify the changes in fuel properties and pyrolysis characteristics of the torrefied real components of corn stalk. The isolated components were torrefied with simulated flue gas and nitrogen in a thermogravimetric analyzer at 230, 260 and 290 °C for 30 min. The ultimate analysis indicated that flue gas atmosphere was beneficial to improving the fuel properties of isolated components. Compared to non-oxidative atmosphere, the flue gas had a greater impact on the initial pyrolysis temperature and char yield of the isolated components. The results of mathematical deconvolution analysis (MDA) demonstrated that the pyrolysis weight losses of native mixture could be quantitatively represented by the linear summation of isolated components. The differential thermogravimetric (DTG) characteristic curves could be used to qualitative analyze the changes in relative contents of the structural components of the torrefied biomass.
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