Pyrolysis kinetics of short rotation coppice poplar biomass

Rego, Filipe; Dias, Ana Paula Soares; Casquilho, Miguel; Rosa, Fátima; Rodrigues, Abel

doi:10.1016/j.energy.2020.118191

Cited by 49 publications

(15 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Biomass can be converted into chemical substances under high temperature or anoxic conditions, forming high‐value solids, liquids and gas 6 . Various kinds of biomass materials such as short rotation coppice poplar, sawdust, pine and shell have been studied as renewable energy by examining pyrolysis kinetics and thermal behavior 7‐10 …”

Section: Introductionmentioning

confidence: 99%

Pyrolysis of Phragmites hirsuta study on pyrolysis characteristics, kinetic and thermodynamic analyses

Liu

Zhang

Zhao

et al. 2021

Intl J of Energy Research

View full text Add to dashboard Cite

This study is dedicated to the pyrolysis behavior and kinetic characteristics of bioenergy potential Phragmites hirsuta (root, stem and leave) by thermogravimetric analyzer using five different heating rates (10, 20, 30, 40, 50 C/ min). The pyrolysis of three parts can be divided into dehydration, volatilization and carbonization, which the main decomposition temperature was 280 C to 350 C with weight losses of 60%. Kinetics thermodynamic characteristics were carried out using three model-free iso-conversional methods, including Flynn-Wall-Ozawa, DAEM and Friedman methods, in which the activation energy of root, stem and leaf were 130 to 177, 128 to 159 and 124 to 157 kJ/mol, respectively. The activation energy in the root higher than stem and leaf indicated higher reactivity of the pyrolysis. The reaction mechanisms of root, stem and leaf fit well with different Avarami-Erofeev reaction models.The pyrolysis of different parts can be separately resolved into three pyrolysis peaks, which represent the pyrolysis of hemicellulose, cellulose and lignin, respectively. The corresponding temperature of hemicellulose pyrolysis peak is leaf < stem < root. This research will provide theoretical basis for high-value utilization of biomass and new ideas for selective pyrolysis of biomass.

show abstract

Section: Introductionmentioning

confidence: 99%

Pyrolysis of Phragmites hirsuta study on pyrolysis characteristics, kinetic and thermodynamic analyses

Liu

Zhang

Zhao

et al. 2021

Intl J of Energy Research

View full text Add to dashboard Cite

show abstract

“…The advantage of KAS and FWO methods is that the calculated activation energy (Ea) is allowed without any prior knowledge f the analytical form of the conversion function (fa) [31]. This method also can provide a capability to describe the kinetic mechanics of pyrolysis [32].…”

Section: Hemicellulose Vh + (1-vh) Volatiles Cellulose Vc + (1-vc) Volatiles (1) Lignin VI + (1-vi) Volatilesmentioning

confidence: 99%

Thermogravimetric analysis kinetic study of Spirulina platensis residue pyrolysis

Jamilatun

Aktawan

Budiman

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Bio-oil from microalgae pyrolysis has excellent potential to be developed as a renewable, sustainable, and environmentally friendly energy fuel. Using pyrolysis technology to use the solid waste from microalgae extraction of spirulina platensis as an energy source is a solution for pollution due to biomass extraction. The solid residue is known as Spirulina Platensis Residue (SPR). SPR pyrolysis will produce liquid fuel (bio-oil), gas, and biochar. This paper discusses the study of the pyrolysis kinetics of SPR with Thermogravimetric analysis (TGA) by flowing nitrogen, the settlement method using Kissinger - Akahira - Sunose (KAS) and Flynn -Wall - Ozawa (FWO). The samples were heated at a temperature ranging from 30°C to 1000°C with three different heating levels, namely 10, 30, and 50°C/min yang injected 20 mL/min Nitrogen (N2). The results obtained from the thermal decomposition process show three main stages, namely dehydration, active and passive pyrolysis. The activation energy (Ea) and the pre-exponential factor (A) obtained by the KAS method were around 42.241 kJ/mol, 51.290 kJ/mol, 54.556 kJ/mol, and 61.604 kJ/mol with conversion of 0.2%, 0.3%, 0.4%, while the estimation of activation energy from FWO 48.963 kJ/mol, 58.107 kJ/mol, 61.498 kJ/mol, and 68.457 kJ/mol with conversion of 0.2%, 0.3%, 0.4%, and 0.5% respectively. the kinetic parameter can be described by using this method. The experimental results show that the kinetic parameters obtained from the two methods are slightly different. However, the KAS and FWO methods are quite efficient in explaining the mechanism of the degradation reaction.

show abstract

“…The pre-exponential factor (A) is crucial for biomass pyrolysis optimization. For the model-free kinetic approach, Eα and A factor have a mathematical relationship such that changing (Eα) according to the pyrolysis extent changes (A) as well [52]. In the current research, the pre-exponential factor was calculated by using Coats-Redfern method as given in equation (12).…”

Section: Kinetic Analysismentioning

confidence: 99%

Experimental Investigation of Kinetic Parameters of Bamboo and Bamboo Biochar Using Thermogravimetric Analysis Under Non-isothermal Conditions

2022

View full text Add to dashboard Cite

The subject of this research is the thermogravimetric analysis of bamboo and bamboo biochar in an inert environment at 10, 20, and 30 °C/min. The physicochemical characterizations of bamboo and bamboo biochar were carried out as per the standard methods. Vacuum pyrolysis was used for the bamboo biochar. The FWO (Flynn-Wall-Ozawa) and KAS (Kissinger-Akahira-Sunose), methods determined thermodynamic and kinetic parameters within the active pyrolysis zone. Thermal degradation bamboo biomass undergoes several steps of loss of mass, including moisture loss, passive and active pyrolysis. Between 180 °C and 395 °C, the active pyrolysis zone accounted for 50 to 55 percent of the mass loss. For FWO and KAS models, bamboo biochar had lower activation energy values (99.23 and 96.07 kJ/mol) than bamboo biomass (262.5303 and 266.62 kJ/mol). The findings of the study for bamboo and its biochar revealed a significant opportunity in the agro industry for designing and building pyrolysis reactors for long-term biofuel generation.

show abstract

Pyrolysis kinetics of short rotation coppice poplar biomass

Cited by 49 publications

References 41 publications

Pyrolysis of Phragmites hirsuta study on pyrolysis characteristics, kinetic and thermodynamic analyses

Pyrolysis of Phragmites hirsuta study on pyrolysis characteristics, kinetic and thermodynamic analyses

Thermogravimetric analysis kinetic study of Spirulina platensis residue pyrolysis

Experimental Investigation of Kinetic Parameters of Bamboo and Bamboo Biochar Using Thermogravimetric Analysis Under Non-isothermal Conditions

Contact Info

Product

Resources

About