Pyrolysis of coal, biomass and their blends: Performance assessment by thermogravimetric analysis

Ferrara, Francesca; Orsini, Alessandro; Plaisant, Alberto; Pettinau, Alberto

doi:10.1016/j.biortech.2014.08.104

Cited by 109 publications

(54 citation statements)

References 33 publications

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“…The magnitude of the effective diffusion coefficient ranges from 10 -10 -10 -8 m 2 ·s -1 . The value of the reaction rate constantly exceed the effective diffusion coefficient by about 2-3 magnitudes, which conforms well to the data measured by other researchers (Ferrara et al, 2014;Ishida, et al, 1968). In the non-isothermal thermodynamics, the reaction rate constant at a certain temperature is a momentary value, rather than a steady one.…”

Section: Study Of the Pyrolysis Kinetics Of Datong Coal Using A Sectisupporting

confidence: 90%

Study of the pyrolysis kinetics of Datong coal using a sectioning method

Yuan

et al. 2016

J. S. Afr. Inst. Min. Metall.

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Section: Study Of the Pyrolysis Kinetics Of Datong Coal Using A Sectisupporting

confidence: 90%

Study of the pyrolysis kinetics of Datong coal using a sectioning method

Yuan

et al. 2016

J. S. Afr. Inst. Min. Metall.

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“…The model assumes that an infinite number of first-order parallel reactions having unique kinetic parameters take place concurrently. The kinetic parameters could be calculated through thermogravimetric analysis (TGA) without considering complex chemical reactions during a thermal decomposition process [11]. The representative equation for the Miura-Maki model [12] is ln (…”

Section: Kinetic Studymentioning

confidence: 99%

Pyrolysis Characteristics of Wood-Based Panels and its Products

Mu¹,

Lai²

2017

Pyrolysis

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Wood-based panels containing urea formaldehyde (UF) resin will be focused on to make clear the influence of UF resin on pyrolysis products and transformation mechanism during pyrolysis of waste wood composites. Thermogravimetric analysis (TGA) will be used to study the thermal degradation reaction kinetics according to different heating rate. Thermogravimetric analyzer coupled to a Fourier transform infrared spectrometer analysis (TGA-FTIR), X-ray photoelectron spectroscopy (XPS) and gas chromatography coupled with mass spectrometry (GCMS) will be used to study the gas, solid, liquid products, respectively. Results from TG and differential thermogravimetric analysis (DTG) indicate that UF resin at first accelerated the degradation rate however inhibited the degradation of wooden composites over the whole pyrolysis process. Compared with wood, UF resin had an obvious effect on the release of HNCO and NH 3 . Mass loss of hydrogen is significantly inhibited by UF resin and nitrogen is much stable in the char with structure of the pyridine and pyrrole at relative content of 6.65% and 7.45% respectively. Influence of UF resin on pyrolysis liquids of wooden composites is mainly on nitrogen compounds and ketones rather than aldehydes and esters, which is probably due to the chemical reactions of UF resin with lignin constituent in wood.

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“…TGA is a simple but effective technique that is widely used to assess the mass loss of the materials as a function of temperature during the pyrolysis of composites . The first derivative of the thermogravimetric analysis curve (DTG) is used to illustrate the rate of mass loss during a given pyrolysis process more clearly …”

Section: Methodsmentioning

confidence: 99%

Thermal behavior and kinetics study of carbon/epoxy resin composites

Yang

Shen

et al. 2019

Polymer Composites

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Carbon/epoxy laminates and foam‐core sandwich composites are frequently used as engineering materials within the aerospace sector. However, epoxy resin matrix and foam‐core materials are highly flammable. In this work, the thermal behaviors of carbon/epoxy laminates and foam‐core sandwich composites were investigated using thermogravimetric analysis at different heating rates in atmospheric air. The morphological images of specimens and the residue after pyrolysis at different characteristic temperatures were further investigated using scanning electron microscopy. Additionally, thermogravimetric Fourier transform infrared spectroscopy was used to analyze the vapors and gases evolved during the thermal decomposition. It was determined that the pyrolysis reactions of carbon/epoxy laminates and foam‐core sandwich composites consist of three decomposition steps. Furthermore, an increase in the heating rate of each material results in higher initial and final temperatures for each thermal decomposition step. Kinetic parameters for the decomposition for carbon/epoxy composites were estimated using Kissinger, Flynn‐Wall‐Ozawa, and Starink methods, and the corresponding thermodynamic parameters were obtained. Through analysis of the reaction kinetics, it was determined that the pyrolysis reactions of carbon/epoxy composites are not easily activated, requiring significant activation energy, but the series of reactions take place easily once this energy barrier is overcome.

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Pyrolysis of coal, biomass and their blends: Performance assessment by thermogravimetric analysis

Cited by 109 publications

References 33 publications

Study of the pyrolysis kinetics of Datong coal using a sectioning method

Study of the pyrolysis kinetics of Datong coal using a sectioning method

Pyrolysis Characteristics of Wood-Based Panels and its Products

Thermal behavior and kinetics study of carbon/epoxy resin composites

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