 Isoconversional kinetic analysis of co-combustion of sewage sludge with straw and coalHan-min Xiao, Xiao-qian Ma and Zhi-yi Lai Applied Energy, 2009, vol. 86, issue 9, 1745 pages Abstract: In this paper, the co-combustion behaviour of sewage sludge with straw and coal were carried out in a thermogravimetric analyzer under different atmospheres and at different heating rates (10, 20 and 40 K min-1) in the temperature range from ambient temperature to 1000 °C. TG and DTG curves were analysed. The Flynn-Wall-Ozawa's (FWO) and Kissinger-Akahira-Sunose's (KAS) isoconversional methods were used to yield dependency of the activation energy of reduction process on the degree of conversion. The values of E[alpha] were obtained. The results indicate that: with the increase of heating rate, the maximum weight loss rate of samples increase obviously. The activation energy is practically constant in the 0.2 [less-than-or-equals, slant] [alpha] [less-than-or-equals, slant] 0.9 range, with the average values of E[alpha] = 137.27 and 132.38 kJ mol-1 calculated by FWO and KAS methods, respectively. Keywords: Co-combustion; Sewage; sludge; Straw; Thermogravimetry; Isoconversional (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:86:y:2009:i:9:p:1741-1745 Ordering information: This journal article can be ordered from Access Statistics for this article Applied Energy is currently edited by J. Yan More articles in Applied Energy from Elsevier |
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