TY - JOUR
T1 - Characterization of solid char produced from pyrolysis of the organic fraction of municipal solid waste, high volatile coal and their blends
AU - Tokmurzin, Diyar
AU - Kuspangaliyeva, Botagoz
AU - Aimbetov, Berik
AU - Abylkhani, Bexultan
AU - Inglezakis, Vassilis
AU - Anthony, Edward J.
AU - Sarbassov, Yerbol
N1 - Funding Information:
The authors would like to thank Nazarbayev University ( NU ) for funding this work [Project number: 284–2019/012-2019 entitled: “Development of MSW combustion and incineration technology for Astana (Kazakhstan) and investigation of MSW blending effects on reactivity of coals in CFB combustion and gasification process” ]. Appendix A
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2020/1/15
Y1 - 2020/1/15
N2 - In this study, the organic fraction of municipal solid waste (Org-MSW) was blended with high-volatile coal (HVC) in proportions of 25/75%, 50/50%, 75/25% by weight. Pyrolysis of these mixtures was then investigated in a thermogravimetric analyzer (TGA) and a horizontal tube furnace under a nitrogen environment. The mass loss rate of samples, differential thermogravimetry (DTG) curves and kinetic analysis of the samples were compared for both blended and non-blended samples. Higher gas yields were seen with increasing pyrolysis temperature for both samples. In addition, the kinetic analysis indicated that the apparent activation energy values of org-MSW samples varied from 535 to 5284 kJ/kmol (over the temperature range of 100–887 °C), while the values for HVC were 247–962 kJ/kmol. The activation energy for HVC varied with temperature and the highest value of 2036 kJ/kmol was found in the temperature range of 336–490 °C. Comparable results were obtained between the TGA and fixed bed tests on the residual char fraction. The findings of this work will be very important in developing a co-firing technology for solid waste residuals and coal for energy production.
AB - In this study, the organic fraction of municipal solid waste (Org-MSW) was blended with high-volatile coal (HVC) in proportions of 25/75%, 50/50%, 75/25% by weight. Pyrolysis of these mixtures was then investigated in a thermogravimetric analyzer (TGA) and a horizontal tube furnace under a nitrogen environment. The mass loss rate of samples, differential thermogravimetry (DTG) curves and kinetic analysis of the samples were compared for both blended and non-blended samples. Higher gas yields were seen with increasing pyrolysis temperature for both samples. In addition, the kinetic analysis indicated that the apparent activation energy values of org-MSW samples varied from 535 to 5284 kJ/kmol (over the temperature range of 100–887 °C), while the values for HVC were 247–962 kJ/kmol. The activation energy for HVC varied with temperature and the highest value of 2036 kJ/kmol was found in the temperature range of 336–490 °C. Comparable results were obtained between the TGA and fixed bed tests on the residual char fraction. The findings of this work will be very important in developing a co-firing technology for solid waste residuals and coal for energy production.
KW - Char characterization
KW - High volatile coal
KW - Organic waste
KW - Pyrolysis
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U2 - 10.1016/j.energy.2019.116562
DO - 10.1016/j.energy.2019.116562
M3 - Article
AN - SCOPUS:85076230146
SN - 0360-5442
VL - 191
JO - Energy
JF - Energy
M1 - 116562
ER -
