Journal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
Volume 37, Issue 13, Pages 1383-1391Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15567036.2011.605428
Keywords
kinetic analysis; microalgae; pyrolytic characteristics; thermal behavior
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Thermal behavior and pyrolytic characteristics of Scenedesmus sp. biomass was investigated under five different heating rates of 5, 10, 20, 30, and 40 degrees C/min by using thermogravimetric analysis. The calorific value and carbon content of the tested biomass sample was 17.65 kJ g(-1) and 46.60%, respectively. The data generated for thermogravimetric analysis showed that three stages of thermal decompositions occurred for selected biomass materials for all of the tested heating rates. The maximum volatile matter was evolved in the second stage of thermal decomposition, with temperatures between 273 and 399 degrees C. The maximum thermal decomposition temperature increased from 294 to 330 degrees C as the heating rates increased from 5 to 40 degrees C/min. The average apparent activation energy of selected biomass determined by Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS) methods were found to be closer values 203 kJ mol(-1).
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