Thermogravimetric characteristics of typical municipal solid waste fractions during co-pyrolysis

Zhou, Hui; Long, Yanqiu; Meng, Aihong; Zhang, Yanguo

doi:10.1016/j.wasman.2014.09.027

Cited by 89 publications

(35 citation statements)

References 20 publications

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“…The mass of the residue at the starting temperature of the overlap increased with the increase of the plastic content in the mixture as the active pyrolysis of plastics occurred at much higher temperature than that of wood. Similar results about the effect of plastics content in MSW on its pyrolytic characteristics were reported in the literature (Cozzani et al, 1995;Zhou et al, 2015aZhou et al, , 2015b. Fig.…”

Section: Co-pyrolysis Of the Biomass And Plastic In Msw At Different supporting

confidence: 88%

“…However, it is a complex process to pyrolyze MSW due to a wide variation in the properties of MSW components. The MSW components do not act independently during pyrolysis (Velghe et al, 2011;Zhou et al, 2015aZhou et al, , 2015b. Several studies showed that the interaction among the MSW components with the same origin such as paper and wood was minimal while the interaction between plastics such as polyethylene and biomass was significant during co-pyrolysis of organic MSW components (Sørum et al, 2001;Zheng et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Thermogravimetric and calorimetric characteristics during co-pyrolysis of municipal solid waste components

2016

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The thermogravimetric and calorimetric characteristics during pyrolysis of wood, paper, textile and polyethylene terephthalate (PET) plastic in municipal solid wastes (MSW), and co-pyrolysis of biomass-derived and plastic components with and without torrefaction were investigated. The active pyrolysis of the PET plastic occurred at a much higher temperature range between 360°C and 480°C than 220-380°C for the biomass derived components. The plastic pyrolyzed at a heating rate of 10°C/min had the highest maximum weight loss rate of 18.5wt%/min occurred at 420°C, followed by 10.8wt%/min at 340°C for both paper and textile, and 9.9wt%/min at 360°C for wood. At the end of the active pyrolysis stage, the final mass of paper, wood, textile and PET was 28.77%, 26.78%, 21.62% and 18.31%, respectively. During pyrolysis of individual MSW components at 500°C, the wood required the least amount of heat at 665.2J/g, compared to 2483.2J/g for textile, 2059.4J/g for paper and 2256.1J/g for PET plastic. The PET plastic had much higher activation energy of 181.86kJ/mol, compared to 41.47kJ/mol for wood, 50.01kJ/mol for paper and 36.65kJ/mol for textile during pyrolysis at a heating rate of 10°C/min. H2O and H2 peaks were observed on the MS curves for the pyrolysis of three biomass-derived materials but there was no obvious H2O and H2 peaks on the MS curves of PET plastic. There was a significant interaction between biomass and PET plastic during co-pyrolysis if the biomass fraction was dominant. The amount of heat required for the co-pyrolysis of the biomass and plastic mixture increased with the increase of plastic mass fraction in the mixture. Torrefaction at a proper temperature and time could improve the grindability of PET plastic. The increase of torrefaction temperature and time did not affect the temperature where the maximum pyrolytic rates occurred for both biomass and plastic but decreased the maximum pyrolysis rate of biomass and increased the maximum pyrolysis rate of PET plastic. The amount of heat for the pyrolysis of biomass and PET mixture co-torrefied at 280°C for 30min was 4365J/g at 500°C, compared to 1138J/g for the pyrolysis of raw 50% wood and 50% PET mixture at the same condition.

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Section: Co-pyrolysis Of the Biomass And Plastic In Msw At Different supporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Thermogravimetric and calorimetric characteristics during co-pyrolysis of municipal solid waste components

2016

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“…2b, the DTG curve of FW&FP, which is composed of rice and banana peel in a mass ratio of 4:1, presented three peaks. The first tiny peak of banana peel devolatilization occurred at a lower temperature of 205.7 °C, revealing the degradation of pectin, hemicelluloses, and sugars (Branca and Blasi 2015;Zhou et al 2015). Based on the previous studies, the second peak at 317.8 °C was the primary peak caused by the cellulose and starch decomposition and part of lignin combustion Branca and Blasi 2015;Fang et al 2015).…”

Section: Mswmentioning

confidence: 89%

“…Figure 2a displays the first and second mass loss peaks of paper and BB&WD presented similar temperature zone of mass loss because they had similar components of lignocellulose. The first peak occurred at 339.5 °C and 334.6 °C, respectively, and accounted for devolatilization of lignocellulosic fractions, in which the hemicelluloses and cellulose had high reactivity and burned completely around 340 °C, while lignin burned within a broader temperature range (Lai et al 2012;Zhou et al 2015). The second mass loss stage occurred from about 390 to 560 °C and was mainly due to the further decomposition and burning of lignin and afterwards, the combustion of chars Fan et al 2016).…”

Section: Mswmentioning

confidence: 99%

Co-Combustion Characteristics and Kinetic Analyses of Biomass Briquette and Municipal Solid Waste in N2/O2 and CO2/O2 Atmospheres

et al. 2017

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The thermal behavior of cotton straw briquette (CSB), municipal solid waste (MSW), and their blends was investigated using a thermogravimetric analyzer under N2/O2 and CO2/O2 atmospheres at 20 °C/min from an ambient temperature to 1000 °C. The kinetics and synergistic interaction between MSW and CSB in the co-combustion process were evaluated. The results indicated that MSW blended with CSB improved the ignition and burnout characteristics of the blends, while decreasing the comprehensive combustion characteristics index. The suitable proportions of CSB were less than 60% and 40% separately under 80N2/20O2 and 80CO2/20O2 atmospheres, respectively. The inhibitory effect of CO2 induced burnout temperature and residual mass increased, and the high-temperature stage reaction varied. Kinetic analysis of the blends indicated that blending with CSB could promote MSW combustion in the first reaction stage, while the second and third decomposition stages were complicated because of the synergistic interaction between MSW and CSB in the co-combustion process. The nth order reaction model fit the mass loss of theca-combustion process for the blends very well.

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“…PVC and biomass. PVC contains a high amount of chlorine and hydrocarbons [15], while the main components of biomass are cellulose, hemicellulose, lignin, as well as a spot of starch and pectin [16,17]. Therefore, every stage from the four stages of decomposition reaction as shown in Fig.…”

Section: Thermal Analysismentioning

confidence: 99%

Exploring the potential of municipal solid waste (MSW) as solid fuel for energy generation: Case study in the Malang City, Indonesia

Sukarni

2016

AIP Conference Proceedings

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Thermogravimetric characteristics of typical municipal solid waste fractions during co-pyrolysis

Cited by 89 publications

References 20 publications

Thermogravimetric and calorimetric characteristics during co-pyrolysis of municipal solid waste components

Thermogravimetric and calorimetric characteristics during co-pyrolysis of municipal solid waste components

Co-Combustion Characteristics and Kinetic Analyses of Biomass Briquette and Municipal Solid Waste in N2/O2 and CO2/O2 Atmospheres

Exploring the potential of municipal solid waste (MSW) as solid fuel for energy generation: Case study in the Malang City, Indonesia

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