Kinetic study and thermal decomposition behavior of viscoelastic memory foam

Abstract

8A systematic investigation of the thermal decomposition of viscoelastic memory 9 foam (VMF) was performed using thermogravimetric analysis (TGA) to obtain the 10 kinetic parameters, and thermogravimetric analysis coupled to Fourier Transformed and Management. 2016and Management. , 119: 327-337. doi:10.1016and Management. /j.enconman.2016 TGA-FTIR analysis showed that the main gases released during the pyrolysis of VMF 22 were determined as ether and aliphatic hydrocarbons, whereas in combustion apart from 23 the previous gases, aldehydes, amines and CO2 have also been detected as the main gases.1 This is a previous version of the article published by Elsevier in Energy Conversion 24These results were confirmed by the TGA-MS.

Kinetics of the Catalytic Thermal Degradation of Sugarcane Residual Biomass Over Rh-Pt/CeO2-SiO2 for Syngas Production

“…Thereby, differences in product distribution and kinetic parameters under catalytic and non-catalytic conditions must be addressed for different degradation atmospheres. Thus, pyrolysis (N 2 ) is commonly compared to combustion (O 2 ) [40][41][42][43], because the latter is the traditional thermal degradation process employed to handle lignocellulosic solid wastes. For that purpose, TG analysis have been widely used in the characterization of thermal degradation of different types of biomass, such as nutshell, pine sawdust [1], other lignocellulosic biomass [40] and plastics [41].…”

“…Thus, pyrolysis (N 2 ) is commonly compared to combustion (O 2 ) [40][41][42][43], because the latter is the traditional thermal degradation process employed to handle lignocellulosic solid wastes. For that purpose, TG analysis have been widely used in the characterization of thermal degradation of different types of biomass, such as nutshell, pine sawdust [1], other lignocellulosic biomass [40] and plastics [41]. TG analysis provides real-time information on the thermal degradation of the sample as a function of time and temperature [44,45].…”

“…Degradation kinetics are an important tool to understand the progress of decomposition reactions [46]. Besides, kinetic study provides kinetic parameters as activation energy (E i ), pre-exponential factor (k) and reaction models that describe the thermal degradation and allow for the design of thermochemical units suitable for this type of residues [41]. Kinetic models of biomass pyrolysis are determined based on the correlation between thermal degradation analysis and information about the released products.…”

“…Parameters were calculated using different relations from literature such as Coast and Redfern, Agrawall and Sivasubramanian methods in order to compare the values obtained [24]. Meanwhile, Garrido et al [41] studied the thermal decomposition of viscoelastic memory foam by TG Analysis under different atmospheres and proposed a model with three consecutive reactions and the kinetic parameters using integral methods that involve all the heating rates evaluated, which gives more accurate parameters [49,50]. The above agree with Anca-Couce et al [51], who compared kinetic parameters obtained by model free methods and model fitting methods during beechwood pyrolysis and concluded that model fitting methods are more reliable and show a better fit.…”

Elucidating the thermal degradation of carbazole‐containing platinum–polyyne polymers

“…The aliphatic units of these decomposed compounds were also confirmed by the bands characteristic of the CH stretching vibrations of methylene and methyl groups in the range 2800–3000 cm −1 (a 5 ) . In the second stage, namely, at temperatures exceeding 415 °C, other characteristic bands at 665, 1371, 1458, and 1514 cm −1 were identified as the products of aromatic hydrocarbons . To gain further information on the thermal decomposition of the platinum–polyyne polymers, the FTIR spectra obtained for the residues after heating to 395 °C (27CbzPtP) or 425 °C (36CbzPtP) and 670 °C were also analyzed (Figures and ).…”