Thermal transformations of pine wood components under pyrolysis/gas chromatography/mass spectrometry conditions

Arias, Mauricio; Polvillo, Oliva; Rodríguez, Jhon James Mora; Hernández, Manuel; González‐Pérez, José Antonío; González-Vila, Francisco Javier

doi:10.1016/j.jaap.2005.12.013

Cited by 29 publications

(20 citation statements)

References 13 publications

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“…The chemical structures of the pyrolysis products of lignins have been evaluated by gas chromatography/mass spectrometry (GC/MS) [10][11][12], nuclear magnetic resonance (NMR) [12][13][14][15][16][17][18] and infrared (IR) spectroscopic [15,[19][20][21] analyses, along with pyrolysis directly coupled with GC/MS [22][23][24][25][26][27][28][29][30][31][32][33][34][35] and IR [19,[36][37][38][39] (Py-GC/MS, Py-IR). Aromatic methoxy groups are stable during the primary pyrolysis stage and become very reactive in the temperature range of 400-450 °C.…”

Section: Effect Of Temperature On Pyrolysis Productsmentioning

confidence: 99%

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Lignin pyrolysis reactions

2017

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Section: Effect Of Temperature On Pyrolysis Productsmentioning

confidence: 99%

“…At relatively low temperatures (for example 250 °C), coniferyl aldehyde, an oxidation product, is the major monomer from lignin pyrolysis [24,86]. In this case, the pyrolysis environment is expected to be radical conditions, which enhance hydrogen abstraction reactions [86].…”

Section: Competitive Processes During Primary Pyrolysismentioning

confidence: 99%

Lignin pyrolysis reactions

2017

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“…Different equipment can be used to measure the pyrolysis products of biomass. Many researchers have used pyrolysis gas chromatography-mass spectroscopy to study the pyrolysis of cotton [5], pine wood [6], paper [7] and others [8], [9]. Moreover, thermogravimetry coupled with Fourier Transform Infrared Spectroscopy were used successfully to determine products of pyrolysis [10], [11].…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis Characteristics of Phoenix Dactylifera Date Palm Seeds Using Thermo-Gravimetric Analysis (TGA)

Babiker¹,

Aziz²,

Heikal³

et al. 2013

IJESD

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Abstract-Mass losses of Phoenix dactylifera date palm seeds (DPSs) were measured using a thermo-gravimetric analyzer (TGA). Six-milligram-sample of six varieties of DPSs were pyrolyzed in an inert condition (argon atmosphere) with a constant flow rate of 100 ml/min for the entire range of experiments. The experiments were conducted under non-isothermal conditions and at a heating rate of 20°C/min until the furnace wall temperature reached 900°C. The moisture (M), ash (ASH), volatile matter (VM) and fixed carbon (FC) of the selected date seeds were determined by means of proximate analysis. The weight percentages of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), sulfur (S) and atomic ratios (H/C and O/C) were determined through the ultimate analysis. The heating value, bulk and particle density of DPSs were also measured using a bomb calorimeter and ultra-pycnometer, respectively. The yield of the liquids was obtained by subtracting the total gaseous mass from the DTG data. The experiments demonstrated that there were significant differences in physiochemical properties of selected DPSs. The findings also revealed that DPSs contain much volatile compounds. DPSs energy densities were found to be among the high-quality biological feedstocks.Index Terms-Date palm seeds, pyrolysis, TGA, thermal characteristic.

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“…Double-shot pyrolysis, which combines thermal desorption with conventional pyrolysis, is becoming a very interesting method for the analysis of complex molecules (Arias et al, 2006;Quénéa et al, 2006). Changes in pyrogram peaks provide useful indices for the assessment of degradation and humification of SOM, and the influence of different agricultural management systems Dieckow et al, 2006).…”

Section: Introductionmentioning

confidence: 99%