Investigation of the slow pyrolysis kinetics of olive oil pomace using thermo-gravimetric analysis coupled with mass spectrometry

Özveren, Uğur; Özdoğan, Z. Sibel

doi:10.1016/j.biombioe.2013.08.011

Cited by 57 publications

(34 citation statements)

References 69 publications

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“…Other researchers that carried out the TGA analysis at different HRs [16,17] found similar behavior.…”

Section: S555supporting

confidence: 48%

“…This peak is mostly due to the thermal degradation of Hem, since this biomass component usually volatilizes between 150 °C and 310 °C [17,30].…”

Section: S555mentioning

confidence: 99%

“…This experimental and analytical procedure is very frequently utilized in the studies concerning wood carbonization and thermal decomposition of solid components, among these the biomass [4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Kinetic of the Pyrolysis Process of Peach and Apricot Pits by TGA and DTGA Analysis

Gagliano¹,

Nocera²,

Patania³

et al. 2016

IJHT

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The kinetic constant rate of the slow pyrolysis process has been estimated, at non-isothermal states, through TGA analysis (Thermogravimetry) for two typologies of biomass: peach and apricot pits. Thermal degradation was implemented using two heating rates (HR), 10 °C/min and 20 °C/min, with the aim of estimating the influence of such parameter on the process kinetics. Results, obtained through the Derivative Thermogravimetric Analysis (DTGA), illustrate that volatilization of both peaches and apricots starts at 200 °C and degradation mainly takes place in the temperature range 200-400 °C. At the end of the thermal degradation process (T = 600 °C), the amount of weight loss was 63÷73% and 58÷60% respectively for peach and apricot pits. It was found that the heating rate considerably influences the weight loss and kinetic constants. Higher heating rates provoke the shift of thermograms towards more elevated temperatures. The energy of activation of the pyrolysis process was calculated by the Friedman model and, for the HR of 10 C/min, it was discovered that this one is fairly independent by the range of conversion. Instead, for the HR of 20 °C/min, the energy of activation decreases, in average by 35%, while the conversion range rises.

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“…Other researchers that carried out the TGA analysis at different HRs [16,17] found similar behavior.…”

Section: S555supporting

confidence: 48%

“…This peak is mostly due to the thermal degradation of Hem, since this biomass component usually volatilizes between 150 °C and 310 °C [17,30].…”

Section: S555mentioning

confidence: 99%

See 1 more Smart Citation

Kinetic of the Pyrolysis Process of Peach and Apricot Pits by TGA and DTGA Analysis

Gagliano¹,

Nocera²,

Patania³

et al. 2016

IJHT

View full text Add to dashboard Cite

show abstract

“…This can contribute to the earlier Energies 2017, 10, 710 4 of 14 decomposition of lignin. Several researchers have found similar thermal profiles [38][39][40][41]. During the first step of pyrolysis, the chemical bonds in the three major constituents of olive pomace, namely cellulose, hemicellulose, and lignin, are thermally cracked.…”

Section: Thermogravimetric Studymentioning

confidence: 89%

The Potential of Thermal Plasma Gasification of Olive Pomace Charcoal

Tamošiūnas

Chouchène²,

Valatkevičius

et al. 2017

Energies

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Annually, the olive oil industry generates a significant amount of by-products, such as olive pomace, olive husks, tree prunings, leaves, pits, and branches. Therefore, the recovery of these residues has become a major challenge in Mediterranean countries. The utilization of olive industry residues has received much attention in recent years, especially for energy purposes. Accordingly, this primary experimental study aims at investigating the potential of olive biomass waste for energy recovery in terms of synthesis gas (or syngas) production using the thermal arc plasma gasification method. The olive charcoal made from the exhausted olive solid waste (olive pomace) was chosen as a reference material for primary experiments with known composition from the performed proximate and ultimate analysis. The experiments were carried out at various operational parameters: raw biomass and water vapour flow rates and the plasma generator power. The producer gas involved principally CO, H 2 , and CO 2 with the highest concentrations of 41.17%, 13.06%, and 13.48%, respectively. The produced synthesis gas has a lower heating value of 6.09 MJ/nm 3 at the H 2 O/C ratio of 3.15 and the plasma torch had a power of 52.2 kW.

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“…Ergüder et al (2000), and Tekin and Dalgıç (2000) investigated anaerobic treatment of solid olive mill residue and showed that methane production potential of SOMR is poor. Also pyrolysis (Jauhiainen et al 2004;Özveren and Özdoğan 2013) and gasification (Vera et al 2011) characteristics of SOMR have been investigated widely. Torrefaction is an important pretreatment for SOMR for purposes of producing more qualified fuel that can be stored without degradation.…”

Section: Introductionmentioning

confidence: 99%

Torrefaction of Solid Olive Mill Residue

Cellatoğlu

İlkan

2015

BioResources

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Solid olive mill residue (SOMR), a lignocellulosic material obtained from olive oil extraction, is a potential attractive source of biomass for energy generation. Although SOMR can be directly combusted, a pretreatment can reduce the oxygen and moisture contents of raw SOMR for efficient energy generation. Torrefaction is a promising thermal pretreatment method for improving fuel characteristics of raw SOMR. In this study, torrefaction characteristics of SOMR were investigated at three different torrefaction temperatures and holding times. Ultimate and proximate analysis results of torrefied SOMR were compared with dried SOMR. Results indicate that an increased torrefaction temperature and holding time can lead to a more qualified solid fuel with higher carbon content, increased higher heating value (HHV), and reduced oxygen content. Further, increased HHV and removal of volatiles are indicators of more energy-dense solid fuel obtained from SOMR. Experimental results revealed that moderately severe torrefaction conditions with holding times not exceeding 30 minutes are suitable for torrefaction of SOMR.

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Investigation of the slow pyrolysis kinetics of olive oil pomace using thermo-gravimetric analysis coupled with mass spectrometry

Cited by 57 publications

References 69 publications

Kinetic of the Pyrolysis Process of Peach and Apricot Pits by TGA and DTGA Analysis

Kinetic of the Pyrolysis Process of Peach and Apricot Pits by TGA and DTGA Analysis

The Potential of Thermal Plasma Gasification of Olive Pomace Charcoal

Torrefaction of Solid Olive Mill Residue

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