2011
DOI: 10.1016/j.jaap.2010.11.006
|View full text |Cite
|
Sign up to set email alerts
|

Modeling biomass particle pyrolysis with temperature-dependent heat of reactions

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

2
58
0

Year Published

2011
2011
2022
2022

Publication Types

Select...
5
2
1

Relationship

1
7

Authors

Journals

citations
Cited by 103 publications
(60 citation statements)
references
References 35 publications
2
58
0
Order By: Relevance
“…Such methods lead to varying estimates ranging from endothermic to exothermic (see Table 1). One issue which contributes to the these discrepancies was originally highlighted by (Kung and Kalelkar, 1973) -and recently corroborated by (Haseli et al, 2011) -is related to whether the temperature-dependence of the heat of pyrolysis are accounted for in the single particle models. Based on the fitting, they concluded that the standard enthalpy of pyrolysis (at a reference temperature) is endothermic (25 kJ/kg); however, at elevated temperatures, the enthalpy of pyrolysis can be exothermic (due to differences in the heat capacities of products and reactants).…”
Section: Previous Estimates For the Heat Of Pyrolysismentioning
confidence: 98%
See 1 more Smart Citation
“…Such methods lead to varying estimates ranging from endothermic to exothermic (see Table 1). One issue which contributes to the these discrepancies was originally highlighted by (Kung and Kalelkar, 1973) -and recently corroborated by (Haseli et al, 2011) -is related to whether the temperature-dependence of the heat of pyrolysis are accounted for in the single particle models. Based on the fitting, they concluded that the standard enthalpy of pyrolysis (at a reference temperature) is endothermic (25 kJ/kg); however, at elevated temperatures, the enthalpy of pyrolysis can be exothermic (due to differences in the heat capacities of products and reactants).…”
Section: Previous Estimates For the Heat Of Pyrolysismentioning
confidence: 98%
“…The temperature and composition dependent specific heat capacities (J kg -1 K -1 ) of the solid pseudo components were modeled according to (Merrick, 1983): (10) where R is the ideal gas constant 8.314 J mol -1 K -1 and the average molecular weight of the solid pseudo component X (A,B,C) is calculated from its respective elemental composition,…”
Section: Specific Heat Capacitymentioning
confidence: 99%
“…They further proposed that vapor tar might undergo secondary reactions in terms of tar cracking reactions yielding additional light gases and char. There exist experimental evidences for both groups of primary and secondary reactions; which have been addressed by Haseli et al [12]. However, it is less likely that tar would experience carking reactions inside the particle due to short residence time of volatiles released during the pyrolysis process.…”
Section: Figmentioning
confidence: 99%
“…The common conclusion from these works was that the char yield was the main factor determining whether the overall pyroysis process is endothermic or exothermic. A survey on the wide range of heat of pyrolysis has been conducted in a recent study by Haseli et al [12].…”
Section: Introductionmentioning
confidence: 99%
“…When one fifth of species standard state enthalpy, namely total enthalpy, 965.6 kJ/kg is adopted, reasonable results can be obtained. However, this enthalpy value is slightly higher than the values obtained by other researchers [31] [32]. The species standard state enthalpy used in this numerical analysis is only for the decomposition of volatile gas, while other researchers' data may be for the total pyrolysis process of solid wood pieces, which includes exothermic reaction of char formation.…”
Section: Endothermic Reactionmentioning
confidence: 59%