Pyrolysis of wood sawdust: Effects of process parameters on products yield and characterization of products

Varma, Anil Kumar; Thakur, Lokendra Singh; Shankar, Ravi; Mondal, Prasenjit

doi:10.1016/j.wasman.2019.04.016

Cited by 167 publications

(61 citation statements)

References 63 publications

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“…With the help of elemental compositions data, the empirical formula of coconut cloth was CH1.30O0.59N0.01. These results were similar to those of other biomass samples (Varma et al 2019). The O content plays an important role in determining calorific value (Capunitan and Capareda 2014).…”

Section: Methodssupporting

confidence: 89%

Pyrolysis of coconut cloth in a microwave reactor: Effect of pyrolysis parameters on product yield and characterization of liquid product and biochar

Dai

Cao

et al. 2020

BioRes

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Pyrolysis of coconut cloth was investigated with the influence of pyrolysis process parameters on the maximum products yield and their chemical compositions. With the microwave reactor, the process parameters were as follows: temperature (450 °C to 650 °C), heating rate (10 °C/min to 30 °C/min), and nitrogen flow rate (80 °C/min to 120 cm3/min). The highest liquid yield of 38.3% was observed at 550 °C for the heating rate of 20 °C/min. The characteristics of bio-oil and biochar were analyzed using chromatographic and spectroscopic techniques, such as nuclear magnetic resonance spectroscopy (HNMR), Fourier transformed infrared spectroscopy (FTIR), gas chromatography-mass spectroscopy (GC-MS), scanning electron microscopy-energy dispersive X-Ray (SEM-EDX), X-ray powder diffraction (XRD), and elemental analysis. The bio-oil contained a higher amount of phenolic compounds at 79.6%. The obtained biochar had a calorific value of 27.8 MJ/kg, which made it a promising candidate for solid fuel.

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Section: Methodssupporting

confidence: 89%

Pyrolysis of coconut cloth in a microwave reactor: Effect of pyrolysis parameters on product yield and characterization of liquid product and biochar

Dai

Cao

et al. 2020

BioRes

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“…In contrast, for larger particle size high-temperature gradient inside the particle resulting less heat transfer from outer to inner surface of the particle and possibly decreases the bio-oil and biogas yield and increases the bio-char yield [19]. Similar effect of the particle size was also observed in the literature, where the large particle size causes increasing in the bio-char and decreasing in the bio-oil [11,20]. Figure 5 shows the effect of N 2 gas ow rate on the products yield at constant pyrolysis temperature of 500 º C and biomass particle size of 0.5 < Dp < 1 mm.…”

Section: Effect Of Operating Parameters On the Product Yieldssupporting

confidence: 71%

Sugarcane Bagasse Pyrolysis: Investigating the Effect of Process Parameters on the Product Yields.

Saif¹,

Ali²,

Wahid³

2020

Preprint

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The objective of the present work is to investigate the pyrolysis of sugarcane bagasse in a semi-batch reactor and study the effect of process parameters of pyrolysis on the products yield to determine optimum parameters for maximum bio-oil production. Parameters of the pyrolysis process such as temperature, particle size of sugarcane bagasse and flow rate of nitrogen (N2) have been varied as 350–600 ºC, 0.25–2 mm and 100–500 cm3/min, respectively. According to the various pyrolysis conditions applied in the experimental studies, the obtained oil, char and gas yields ranged between 38 and 45 wt%, 24 and 36 wt%, and 23 and 37 wt%, respectively. The maximum pyrolysis bio-oil yield of 45 wt% was achieved at temperature of 500 ºC, particle size of 0.5 -1 mm with nitrogen(N2) flow rate of 200 cm3/min. Based on the results captured under this study's pyrolysis conditions, temperature is considered to be the most important parameter for product distribution. As the increases of the pyrolysis temperature the bio-char yield decreased and increase of gas yield. The bio-oil yield increases with increasing the temperature, reaches a maximum value at about 500 ºC and reduces thereafter at higher temperature is expected due to secondary cracking reactions of the volatiles, which results produce a higher gaseous yield.

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“…Around the world, the amount of publications regarding renewable energies and biofuels accounts for a large percentage of the total of approximately 56% [1,2]. In human history, the use of biomass has been required to meet the energy needs.…”

Section: Introductionmentioning

confidence: 99%

Thermal Degradation Kinetics and FT-IR Analysis on the Pyrolysis of Pinus pseudostrobus, Pinus leiophylla and Pinus montezumae as Forest Waste in Western Mexico

et al. 2020

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For the first time, a study has been carried out on the pyrolysis of wood residues from Pinus pseudostrobus, Pinus leiophylla and Pinus montezumae, from an area in Western México using TGA analysis to determine the main kinetic parameters (Ea and Z) at different heating rates in a N2 atmosphere. The samples were heated from 25 °C to 800 °C with six different heating rates 5–30 °C min−1. The Ea, was calculated using different widely known mathematical models such as Friedman, Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose. The Ea value of 126.58, 123.22 and 112.72 kJ/mol (P. pseudostrobus), 146.15, 143.24 and 132.76 kJ/mol (P. leiophylla) and 148.12, 151.8 and 141.25 kJ/mol (P. montezumae) respectively, was found for each method. A variation in Ea with respect to conversion was observed with the three models used, revealing that pyrolysis of pines progresses through more complex, multi-stage kinetics. FT-IR spectroscopy was conducted to determine the functional groups present in the three species of conifers. This research will allow future decisions to be made, and possibly, to carry out this process in a biomass reactor and therefore the production of H2 for the generation of energy through a fuel cell.

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Pyrolysis of wood sawdust: Effects of process parameters on products yield and characterization of products

Cited by 167 publications

References 63 publications

Pyrolysis of coconut cloth in a microwave reactor: Effect of pyrolysis parameters on product yield and characterization of liquid product and biochar

Pyrolysis of coconut cloth in a microwave reactor: Effect of pyrolysis parameters on product yield and characterization of liquid product and biochar

Sugarcane Bagasse Pyrolysis: Investigating the Effect of Process Parameters on the Product Yields.

Thermal Degradation Kinetics and FT-IR Analysis on the Pyrolysis of Pinus pseudostrobus, Pinus leiophylla and Pinus montezumae as Forest Waste in Western Mexico

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