Kinetics analysis of sulfur gasification during clinker production in cement kiln
Source abstract
Abstract
During clinkering, the release of volatile sulfur elements poses a threat to the surrounding atmosphere and environment. Thus, it becomes imperative to investigate the gasification process of sulfur elements during the collaborative disposal of cement kilns. Thermogravimetric analysis was employed to determine the main gasification reaction temperature range, followed by kinetic and thermodynamic analysis. The results revealed that using Friedman, Flynn–Wall–Ozawa (FWO), Kissinger–Akahira–Sunose (KAS) and Starink, the average activation energies of sulfur gasification reaction were determined to be 226.56, 270.54, 259.90 and 260.58 KJ/mol, respectively. The KAS model exhibited a favourable fit with the experimental results, enabling the estimation of the pre-exponential factor. In terms of thermodynamic properties, the gasification reaction displayed positive ΔH and ΔG values, indicating it is highly endothermic and non-spontaneous. From a reaction function perspective, sulfur gasification is predominantly influenced by diffusion. The established mathematical prediction model of the sulfur gasification ratio demonstrated minimal deviation from the experimentally measured value. The thermodynamic and kinetic parameters presented in this study provide a theoretical foundation for the precise control and capture of harmful sulfur elements during clinkering.
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Research context
OpenAlex topics: Thermal and Kinetic Analysis · Coal Combustion and Slurry Processing · Environmental and Industrial Safety
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Dongguan University of Technology School of Environment and Civil Engineering, , Dongguan, PR ; Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin, PR China; Jiangsu Key Laboratory for Construction Materials, Southeast University, Nanjing, PR China
Tianjin Chengjian University Tianjin Key Laboratory of Building Green Functional Materials, , Tianjin, PR ; School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin, PR China
Southeast University Jiangsu Key Laboratory for Construction Materials, , Nanjing, PR
Suzhou University of Science and Technology School of Civil Engineering, , Suzhou, PR
Qingdao University of Technology Department of Civil Engineering, , Qingdao, PR
Dongguan University of Technology School of Environment and Civil Engineering, , Dongguan, PR
Funding
National Key Research and Development Program of China · National Natural Science Foundation of China · Open Research Fund of Tianjin Key Laboratory of Building Green Functional Materials · Natural Science Foundation of Jiangsu Province · Fundamental Research Funds for the Central Universities
References (34)
Show source-provided references
1. Gasification kinetic and thermodynamic parameters of fine coal using thermogravimetric analysis10.1016/j.energy.2023.126666 ↗
2. ASEM 29 (American Standard EPA-Method 29) · 1996
3. CO2 gasification of char derived from waste tire pyrolysis: Kinetic models comparison10.1016/j.fuel.2020.117745 ↗
4. A random pore model for fluid–solid reactions: I. Isothermal, kinetic control10.1002/aic.690260308 ↗
5. A random pore model for fluid–solid reactions: II. Diffusion and transport effects10.1002/aic.690270211 ↗
6. Applicability of the master plots in kinetic analysis of non-isothermal data10.1016/0040-6031(89)85192-5 ↗
7. Thermal decomposition kinetics of sorghum straw via thermogravimetric analysis10.1016/j.biortech.2017.08.189 ↗
8. Synergistic effect, kinetic and thermodynamics parameters analyses of co-gasification of municipal solid waste and bituminous coal with CO210.1016/j.wasman.2020.10.028 ↗
9. Estimating isothermal life from thermogravimetric data10.1002/app.1962.070062406 ↗
10. Kinetics of thermal degradation of char-forming plastics from thermogravimetry. Application to a phenolic plastic10.1002/polc.5070060121 ↗
11. Non-isothermal degradation kinetics of ethylene-vinyl acetate copolymer nanocomposite reinforced with modified bacterial cellulose nanofibers using advanced isoconversional and master plot analyses10.1016/j.tca.2017.06.014 ↗
12. The co-processing of municipal waste in a cement kiln in Mexico. A life-cycle assessment approach10.1016/j.jclepro.2015.05.085 ↗
13. Reactivity prediction and mechanism analysis of raw and demineralized coal char gasification10.1016/j.energy.2021.120724 ↗
14. Soot formation during biomass gasification: a critical review10.1016/j.rser.2021.110710 ↗
15. Effect of hydrothermal carbonization on woody biomass: from structure to reactivity10.1016/j.fuel.2022.125586 ↗
16. Complete heavy metal removal from fly ash by heat treatment: Influence of chlorides on evaporation rates10.1021/es960059z ↗
17. Heavy metal removal and speciation transformation through the calcination treatment of phosphorus-enriched sewage sludge ash10.1016/j.jhazmat.2014.09.052 ↗
18. Experimental study on the effect of limestone on SO2 and NO emission characteristics during coal/coke combustion10.1016/j.joei.2023.101403 ↗
19. Pyrolytic characteristics, kinetics, thermodynamics, volatile products and chemical reactions of micron polypropylene infiltrated with kerosene10.1016/j.jaap.2023.105939 ↗
20. Evaluation of synergy during co-pyrolysis of torrefied sawdust, coal and paraffin. A kinetic and thermodynamic study10.1016/j.fuel.2021.120305 ↗
21. Discernment of synergism in pyrolysis of biomass blends using thermogravimetric analysis10.1016/j.biortech.2018.04.011 ↗
22. Extensive thermogravimetric and thermo-kinetic study of waste motor oil based on iso-conversional methods10.1016/j.enconman.2020.113194 ↗
23. A new method of analyzing thermogravimetric data10.1246/bcsj.38.1881 ↗
24. Thermal degradation characteristics and gasification kinetics of camel manure using thermogravimetric analysis10.1016/j.jenvman.2021.112345 ↗
25. Rational approximations of the integral of the Arrhenius function10.1007/BF01903696 ↗
26. Incorporation mechanism of titanium in Portland cement clinker and its effects on hydration properties10.1016/j.conbuildmat.2017.03.129 ↗
27. Dynamic thermal decomposition of linear polymers and its study by thermo analytical methods10.1007/BF02331766 ↗
28. The determination of activation energy from linear heating rate experiments: a comparison of the accuracy of isoconversion methods10.1016/S0040-6031(03)00144-8 ↗
29. ICTAC kinetics committee recommendations for performing kinetic computations on thermal analysis data10.1016/j.tca.2011.03.034 ↗
30. Effects of chlorine on the volatilization of heavy metals during the co-combustion of sewage sludge10.1016/j.wasman.2017.02.029 ↗
31. Influence of sulfur on the fate of heavy metals during clinkerization10.1016/j.conbuildmat.2018.06.084 ↗
32. Influence of chlorine on the fate of Pb and Cu during clinkerization10.1021/acs.energyfuels.8b01111 ↗
33. Clarifying the decomposition process of pyrite and SO2 release in the cyclone preheater of a dry rotary cement kiln system10.1016/j.jclepro.2019.118422 ↗
34. Migration and solidification behavior of the semivolatile heavy metal elements Zn and Cd during high ferrite cement clinker (HFCC) calcination10.1016/j.cemconcomp.2023.105032 ↗