Applicability of Fraser–Suzuki function in kinetic analysis of DAEM processes and lignocellulosic biomass pyrolysis processes

Cheng, Zhicai; Wu, Weixuan; Ji, Peng; Zhou, Xiaotong; Liu, Ronghou; Cai, Junmeng

doi:10.1007/s10973-014-4215-3

Cited by 71 publications

(18 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The E values changed from 150.25 to 185.61 kJ mol -1 and the values of A change from 1.34 9 10 11 to 8.99 9 10 15 s -1 . The average E value of S. plumbizincicola lower than other types of biomass (Giuntoli et al 2009;Cheng et al 2015), possibly because the chemical composition of individual species plays a fundamental role in determining the kinetics or may be associated with the presence and absence of mineral content in various biomass materials (Giuntoli et al 2009;Cheng et al 2015).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Pyrolysis of Sedum plumbizincicola, a zinc and cadmium hyperaccumulator: pyrolysis kinetics, heavy metal behaviour and bio-oil production

Zhong

et al. 2016

Clean Techn Environ Policy

View full text Add to dashboard Cite

Appropriate disposal of hyperaccumulator biomass is a problem inhibiting the widespread use of phytoremediation technology. In the present study, kinetic analysis of the pyrolysis process of Sedum plumbizincicola, the behaviour of heavy metals and bio-oil composition were studied. The kinetic analysis of the pyrolysis process shows that activation energy (E) changed from 150 to 186 kJ mol -1 and the frequency factor (A) changed from 1.34 9 10 11 to 8.99 9 10 15 s -1 . At temperatures of 450-750°C more than 66.3 % of zinc (Zn) remained in the char. More than 87.6 % of the cadmium (Cd) was found in the bio-oil. Pyrolysis at 650°C led to the highest yield of alkanes with low-oxygen compounds found in the bio-oil. Pyrolysis at 650°C can likely offer a valuable processing method for S. plumbizincicola and recovery of Zn from the char and recovery of Cd from the bio-oil will be attempted in future research.

show abstract

Section: Resultsmentioning

confidence: 99%

“…In the present study, thermal conversion process of S. plumbizicicola under an inert atmosphere is composed of a set of irreversible single (first-order) reactions occurring successively (Cheng et al 2015;Li et al 2013). The model is expressed as follows (Miura 1995…”

Section: Kinetic Analysis Using Daemmentioning

confidence: 99%

Pyrolysis of Sedum plumbizincicola, a zinc and cadmium hyperaccumulator: pyrolysis kinetics, heavy metal behaviour and bio-oil production

Zhong

et al. 2016

Clean Techn Environ Policy

View full text Add to dashboard Cite

show abstract

“…Assuming the usual values for the pre exponential factors, obtaining values of E = 0 or E < 0 corresponds to events that occurs below ambient temperature, so, the change of the limit of the equation does not interfere in the value of the integral (Várhegyi, Szabó, & Antal, 2002). Assuming that a Gaussian distribution function, usually employed for this kind of processes (Cheng, et al, 2015;Janković, 2014), with an apparent media activation energy E 0j and an standard deviation s j can be obtained.…”

Section: Resultsmentioning

confidence: 99%

“…DAEM model uses the assumption that a series of irreversible parallel first order reactions occurs, characterized for a continuous distribution of activation energy that can be represented by a distribution function D j (E) (N. Cheng et al, 2015). This model describes the processes of pyrolysis, where the fraction of unreacted material as function of time is (Várhegyi, 2007):…”

Section: Distributed Activation Energy Model (Daem)mentioning

confidence: 99%

Devolatilization of African Palm (Elaeis guineensis) Husk studied by TG-MS

Albis¹,

Ortiz²,

Piñeres³

et al. 2018

Ing. Inv.

View full text Add to dashboard Cite

Using simultaneous thermogravimetrical analysis coupled with mass spectroscopy, the pyrolysis of African palm husk, using several heat rates and programs was performed. Seven relations of mass/charge were followed of the evolved gas of the pyrolysis process, fitting the kinetics and the mass spectroscopy signals to the distributed activation energy model (DAEM) with different numbers of pseudo-components. Fitting with four pseudo-components proved to be the best for modeling the thermal degradation process. Kinetic parameters were not affected by the heating rate or program employed, which agrees with other reports for similar biomass. Methane, methanol formaldehyde, furfural were successfully fitted to the DAEM model, nevertheless CO 2 and NO 2 were not able to be represented by this model due to its production in secondary reactions in gaseous phase.Keywords: TG-MS, pyrolysis, African Palm, husk. RESUMENSe estudió la pirólisis del cuesco de palma africana utilizando diferentes programas de calentamiento, recurriendo al uso de la técnica simultánea de análisis termogravimétrico acoplado a espectrometría de masas. En los gases de evolución, se siguieron las intensidades de señal de espectrometría de masas de siete relaciones m/z. La cinética de pirólisis de este residuo del procesamiento de aceite de palma se ajustó al modelo de distribución de energías de activación con diferentes números de pseudo-componentes. Los resultados del ajuste mostraron que son necesarios al menos cuatro pseudo-componentes para modelar satisfactoriamente los perfiles termogravimétricos de la pirólisis del cuesco de palma. Se encontró que la velocidad de calentamiento no afecta significativamente los parámetros del modelo cinético, los cuales se encuentran en concordancia con los reportados en la literatura para biomasas similares. Los perfiles de las curvas de intensidad de señal para las relaciones m/z seleccionadas se modelaron utilizando los parámetros cinéticos obtenidos del ajuste de los datos termogravimétricos, lográndose resultados satisfactorios para las relaciones m/z correspondientes a fragmentos de moléculas como metano, metanol, formaldehído y furfural. La falta de ajuste de las intensidades de señal correspondientes a CO 2 y NO 2 se atribuyó a que la formación de estos compuestos es consecuencia no sólo de la descomposición de la biomasa, sino también a su aparición resultado de reacciones secundarias en fase gaseosa.Palabras clave: TG-MS, pirólisis, palma africana, cuesco.

show abstract

“…Kinetic parameters such as mean activation energy, pre-exponential factor, and standard deviation can be determined using DAEM, and the activation energies of the reactions can be represented by continuous distribution. However, there are only a few reports analyzing pyrolysis of VR with DAEM [16].…”

Section: Introductionmentioning

confidence: 99%

Kinetic analysis using thermogravimetric analysis for nonisothermal pyrolysis of vacuum residue

Shin

Nho

et al. 2016

J Therm Anal Calorim

View full text Add to dashboard Cite

Pyrolysis is a relatively simple upgrading process that can produce light oil from unconventional oil and heavy residue. For effective utilization of pyrolysis processes, it is important to understand its kinetic parameters. In this study, the nonisothermal pyrolysis of vacuum residue (VR) was analyzed using a thermogravimetric analyzer and the activation energy of the VR pyrolysis reaction was estimated by several theoretical methods. It was found that isoconversional methods were more suitable than nonisoconversional methods for analyzing complex pyrolysis reaction of VR. The Friedman method, a differential isoconversional method, is thought to be the most appropriate among the various methods tested because it can describe the complexity of the pyrolysis reaction of VR and there is no need for information of exact reaction model and mathematical assumptions for temperature integral, which can raise systematic errors in the kinetic analysis. Finally, the kinetic parameters of VR pyrolysis were determined based on the results of Friedman analysis and distributed activation energy model (DAEM), and VR pyrolysis behavior was well expressed with the kinetic parameters obtained from DAEM analysis.

show abstract

Applicability of Fraser–Suzuki function in kinetic analysis of DAEM processes and lignocellulosic biomass pyrolysis processes

Cited by 71 publications

References 29 publications

Pyrolysis of Sedum plumbizincicola, a zinc and cadmium hyperaccumulator: pyrolysis kinetics, heavy metal behaviour and bio-oil production

Pyrolysis of Sedum plumbizincicola, a zinc and cadmium hyperaccumulator: pyrolysis kinetics, heavy metal behaviour and bio-oil production

Devolatilization of African Palm (Elaeis guineensis) Husk studied by TG-MS

Kinetic analysis using thermogravimetric analysis for nonisothermal pyrolysis of vacuum residue

Contact Info

Product

Resources

About