Journal
BIORESOURCE TECHNOLOGY
Volume 179, Issue -, Pages 414-420Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.12.025
Keywords
Co-pyrolysis; Biomass; Coal; TGA
Funding
- National Basic Research Program of China [2011CB200906]
- 'Program for New Century Excellent Talents in University' - China [NCET-12-0854]
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Co-pyrolysis characteristics of biomass and bituminous coal have been studied in this work. The temperature was up to 900 degrees C with the heating rates of 10, 15, 20, 25 and 30 degrees C/min. Rice straw, saw dust, microcrystalline cellulose, lignin and Shenfu bituminous coal were chosen as samples. Six different biomass ratios were used. The individual thermal behavior of each sample was obtained. The experimental weight fractions of the blended samples and the calculated values were compared. The results show that the weight fractions of the blended samples behave differently with calculated ones during the co-pyrolysis process. With the increasing biomass ratio, relative deviations between experimental weight fractions and calculated ones are larger. H/C molar ratio, heat transfer properties of biomass would affect to the interaction between biomass and coal. The maximum degradation rates are slower than the calculated ones. The activation energy distributions also changed by adding some biomass into coal. (C) 2014 Elsevier Ltd. All rights reserved.
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