Pyrolysis and combustion of polycoated cartons: kinetic model and MS-analysis

Reyes, Jonathan; Conesa, Juan A.; Marcilla, A.

doi:10.1016/s0165-2370(00)00123-6

Cited by 26 publications

(11 citation statements)

References 20 publications

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“…However, literature that includes detailed kinetic studies, fitting experimental curves at different heating rates and oxygen content is extremely sparse. Different models have been found in literature, concerning the decomposition of tannery waste under oxygenated atmosphere [11], polycoated materials such as milk cartons [12], polytetrafluoroethylene [13] and also of tire wastes [14]. No models for combustion of cotton or used cotton fabrics have been found, as commented previously.…”

Section: Combustion Modelmentioning

confidence: 99%

Thermogravimetric analysis during the decomposition of cotton fabrics in an inert and air environment

Moltó

Font

Conesa

et al. 2006

Journal of Analytical and Applied Pyrolysis

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The thermal degradation of samples of used cotton fabrics has been investigated using thermogravimetric analysis (TGA) between room temperature and 700 8C. Experiments were carried out with about 5 mg of sample in three different atmospheres: helium, 20% oxygen in helium and 10% oxygen in helium. Three different heating rates were used at each atmosphere condition. A kinetic model for the decomposition of used cotton fabrics explaining the behavior of all the runs performed has been proposed and tested. For the pyrolysis of the cotton, the model comprises two parallel reactions. For the combustion process, one competitive reaction was added to each parallel reaction of the pyrolysis model and four combustion reactions of the different solid fractions to obtain volatiles. One single set of parameters can explain all the experiments (pyrolysis, oxidative pyrolysis and combustion) at the three different heating rates used.

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Section: Combustion Modelmentioning

confidence: 99%

Thermogravimetric analysis during the decomposition of cotton fabrics in an inert and air environment

Moltó

Font

Conesa

et al. 2006

Journal of Analytical and Applied Pyrolysis

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“…TGA is widely employed to study the degradation and decomposition reaction of various types of materials (Díez et al, 2004;Reyes et al, 2001).The TGA results shows the mass loss rate is low, under 200 °C, but increases gradually as the temperature rises and peaks at 373 °C. This mass change stops after the temperature reaches 700 °C, at which point the pyrolysis is deemed complete.…”

Section: Resultsmentioning

confidence: 99%

Studies on pyrolysis and gasification of automobile shredder residue in China

Chen

2014

Waste Manag Res

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With increasing automobile ownerships in China, the number of end-of-life vehicles has also rapidly increased. However, the automobile shredder residue generated during the dismantling of end-of-life vehicles in China is not treated properly and has caused great resource waste and environmental problems. In this work, automobile shredder residue from a domestic end-of-life vehicles dismantling company was comprehensively studied through element analysis, combustion heat experiment, proximate analysis, and thermogravimetric analysis. The feasibility of using pyrolysis combined with gasification to treat and recycle automobile shredder residue was investigated. The produced gas, oil, and residue yield was measured and the correlation between their yield and the experimental temperature and ratio of air to automobile shredder residue feed was studied. It is found that when ratio of air and experimental temperature are 1.5 mol kg(-1) and 900 °C, respectively, the heat energy of the gas produced per kilogram treated automobile shredder residue reaches a maximum value of 11.28 MJ. The characteristics of pyrolysis oil and solid residue were studied. The solid residue takes up 4.65%~5.57% of the original end-of-life vehicles weight. This greatly helps to reach the target of a 95% recycling rate.

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“…The tests were conducted using the selected ion monitoring mode in which the ion current signal intensities of the selected ions were monitored. The intensities of selected ions should be normalized to the sample mass to compare the test results obtained for different samples at different conditions [29]. Because there are great differences in ash content between oil shale and p-kerogen samples, the MS data are compared on dry ash-free basis in order to more suitably reflect the emission differences of gaseous products [28].…”

Section: Tga-ms Analysismentioning

confidence: 99%

A Tga-MS Investigation of the Effect of Heating Rate and Mineral Matrix on the Pyrolysis of Kerogen in Oil Shale

Huang¹,

Fan²,

Han³

et al. 2016

Oil Shale

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A demineralized Dachengzi oil shale sample, p-kerogen, is obtained through hydrochloric & hydrofluoric (HCl&HF) treatment. Themogravimetric analysis combined with on-line mass spectrometry (TGA-MS) tests on original oil shale and p-kerogen were carried out at two heating rates, 5 °C/min and 15 °C/min, to study the effect of heating rate and mineral matrix on the pyrolysis of kerogen in oil shale. In the pyrolysis products, the amounts of both the organic and inorganic gases generated are significant with the evolution of oil in the temperature range of 370-570 °C. Increasing the heating rate from 5 °C/min to 15 °C/min leads to the decrease of most of the small molecule products of interest in this research, which indicates that in the oil shale pyrolysis the secondary cracking reactions may be inhibited by such increase. With increasing heating rate the thermogravimetric (TG) curves shift to a higher temperature region with an increase of about 10 °C due to the temperature difference between the surface and the center of the sample particles. The amount of alkenes generated is higher than that of alkanes and the alkene/alkane ratio increases with heating rate. At the same heating rate, the amounts of both the inorganic and organic compounds generated in the oil shale pyrolysis are higher than those produced in the pkerogen pyrolysis, suggesting that mineral matrix has an obvious catalytic effect on the pyrolysis of kerogen. Hydrogen release is markedly strengthened in the oil evolution process because of the resultant effect of mineral matter which promotes the cracking reactions in the pyrolysis of kerogen. Compared with oil shale, the TG curves of p-kerogen shift to a lower temperature zone with a decrease of about 10 °C because the pore channels formed in the demineralization treatment intensify the heat and mass transfer in the sample particles.

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Pyrolysis and combustion of polycoated cartons: kinetic model and MS-analysis

Cited by 26 publications

References 20 publications

Thermogravimetric analysis during the decomposition of cotton fabrics in an inert and air environment

Thermogravimetric analysis during the decomposition of cotton fabrics in an inert and air environment

Studies on pyrolysis and gasification of automobile shredder residue in China

A Tga-MS Investigation of the Effect of Heating Rate and Mineral Matrix on the Pyrolysis of Kerogen in Oil Shale

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