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Investigation of Thermal Decomposition and Gases Release from Pre-Drying Municipal Solid Waste (PMSW) Via Pyrolysis Technology Cover

Investigation of Thermal Decomposition and Gases Release from Pre-Drying Municipal Solid Waste (PMSW) Via Pyrolysis Technology

Architecture, Civil Engineering, Environment
Volume 15 (2022): Issue 4 (December 2022)
By: ,  ,  ,  ,   and    
Open Access
|Feb 2023
Figures & tables

Figures & Tables

Table 1

Proximate and ultimate analyses of PMSW

SampleProximate Analysis (Wt. % db)Ultimate Analysis (Wt. % db)
Moisture contentVolatile mattersFixed carbon*AshCHO*NS
PMSW11.5472.285.810.3859.866.1332.390.611.01

Wt. %-weight percentage, db-dry basis,

* by difference

Figure 1

TGA-MS setup for pyrolysis of the PMSW

Table 2

Representative gas species evolved and key ion fragments according to their m/z ratio

Representative speciesIon fragmentsm/z ratio
HydrogenH2+2
MethaneCH3+15
WaterH2O+18
Carbon monoxideCO+28
EthaneC2H+228
ArgonAr+40
Carbon dioxideCO2+44
Figure 2

Thermogravimetric (TG) and Differential thermo-gravimetric (DTG) (b) profiles of pyrolysis of PMSW

Table 3

Temperature characteristics of the conversion phases obtained from pyrolysis of PMSW

RegimeHeating rate (°C/min)Stage 1Stage 2Stage 3Stage 4
Ti (°C)Tmax (°C)Tf (°C)Ti (°C)Tmax (°C)Tf (°C)Ti (°C)Tmax (°C)Tf (°C)Ti (°C)Tmax (°C)Tf (°C)
Pyrolysis550113180230334360360419500605652690
1550133182230438515------

[i] Note: Ti is the initial temperature of each phase; Tmax is the maximum (at peak) temperature of each phase; Tf is the final temperature of each phase

Figure 3

The generation rates of (a) H2, (b) CO, and (c) CH4, and (d) their total yields obtained from pyrolysis of PMSW at 5 and 15°C/min.

Figure 4

(a) Fitting curves and (b) plots of activation energy obtained from the pyrolysis of PMSW at different conversion degrees at heating rates of 5 and 15°C/min.

Table 4

Kinetic parameters at different conversion rates at heating rates of 5 and 15°C/min

EnvironmentHeating rate (°C/min)Conversion degree (α)Activation energy (kJmol−1)R2
Pyrolysis5526.21650.9972
10266.14190.9722
15122.30630.9967
20154.29120.9839
25154.68090.9849
30150.2120.9941
35142.16210.9932
15524.898660.9983
10263.31260.9701
15118.4880.9949
20150.20190.9811
25150.46020.9935
30145.87950.9922
35137.66650.9917
Figure 5

Experimental (dotted) and model (solid) lines through the FWO method were (a) and (b) show the pyrolysis at 5 and 15°C/min, respectively

DOI: https://doi.org/10.2478/acee-2022-0043 | Journal eISSN: 2720-6947 (formerly 1899-0142) | Journal ISSN: 1899-0142
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Language: English
Page range: 119 - 131
Submitted on: Aug 19, 2022
Accepted on: Nov 7, 2022
Published on: Feb 3, 2023
Published by: Silesian University of Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Circular Economy,
Municipal Solid Waste,
Waste Management,
Performance,
Sustainability
Related subjects:
Architecture and design,
Architecture,
Architects, buildings

© 2023 Imtiaz Ali Jamro, Salim Khoso, Syyed Adnan Raheel Shah, Sadaquat Ali, Fahmeed Ali, Haseeb Ul Hassane, published by Silesian University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 15 (2022): Issue 4 (December 2022)
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