Catalytic pyrolysis of lignocellulosic bio-packaging (jute) waste – kinetics using lumped and DAE (distributed activation energy) models and pyro-oil characterization

Poddar, Sourav; De, S. K.; Chowdhury, Ranjana

doi:10.1039/c5ra18435e

Cited by 15 publications

(11 citation statements)

References 57 publications

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“…Coats-Redfern's integral method has been used by many researchers to determine the kinetic parameters for catalytic and non-catalytic pyrolysis (Yu et al, 2013;Poddar et al, 2015; TABLE 1 | Integral forms of solid pyrolysis reaction mechanistic models.…”

Section: Reaction Kineticsmentioning

confidence: 99%

“…A is the frequency factor; β is the heating rate; E is the activation energy; R is the universal gas constant; n is the reaction order; and g(α) is the integral forms of solid pyrolysis reaction mechanistic models. Table 1 shows the expressions for different pyrolysis reaction mechanistic models (i.e., chemical reaction and diffusion-controlled reaction), which have been used by many researchers (Yu et al, 2013;Poddar et al, 2015;Wang et al, 2019). The activation energy and pre-exponential factor can be determined using linear regressions between the left-hand side of the equation for the different pyrolysis reaction mechanistic models (8) versus 1…”

Section: Reaction Modelmentioning

confidence: 99%

“…T (Yu et al, 2013;Poddar et al, 2015). The regression graphs for different kinetic reaction mechanisms can be found in the Supplementary Material.…”

Section: Reaction Modelmentioning

confidence: 99%

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Synergistic Effects of Catalyst Mixtures on Biomass Catalytic Pyrolysis

Mohamed

Ellis

Kim

et al. 2020

Front. Bioeng. Biotechnol.

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This paper studied the synergistic effects of catalyst mixtures on biomass catalytic pyrolysis in comparison with the single catalyst in a microwave reactor and a TGA. In general, positive synergistic effects were identified based on increased mass loss rate, reduced activation energy, and improved bio-oil quality compared to the case with a single catalyst at higher catalyst loads. 10KP/10Bento (a mixture of 10% K3PO4 and 10% bentonite) increased the mass loss rate by 85 and 45% at heating rates of 100 and 25°C/min, respectively, compared to switchgrass without catalyst. The activation energy for 10KP/10Bento and 10KP/10Clino (a mixture of 10% K3PO4 and 10% clinoptilolite) was slightly lower or similar to other catalysts at 30 wt.% load. The reduction in the activation energy by the catalyst mixture was higher at 100°C/min than 25°C/min due to the improved catalytic activity at higher heating rates. Synergistic effects are also reflected in the improved properties of bio-oil, as acids, aldehydes, and anhydrosugars were significantly decreased, whereas phenol and aromatic compounds were substantially increased. 30KP (30% K3PO4) and 10KP/10Bento increased the content of alkylated phenols by 341 and 207%, respectively, in comparison with switchgrass without catalyst. Finally, the use of catalyst mixtures improved the catalytic performance markedly, which shows the potential to reduce the production cost of bio-oil and biochar from microwave catalytic pyrolysis.

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Section: Reaction Kineticsmentioning

confidence: 99%

Section: Reaction Modelmentioning

confidence: 99%

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Synergistic Effects of Catalyst Mixtures on Biomass Catalytic Pyrolysis

Mohamed

Ellis

Kim

et al. 2020

Front. Bioeng. Biotechnol.

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“…The results showed that the presence of the catalyst could lower the activation energy of lignin catalytic pyrolysis. Poddar et al [22] used a lumped model to describe the pyrolysis kinetics of jute (a waste bio-packaging material) with different catalysts, and found that alumina was the best performing catalyst showing the highest pyrolysis oil yield and the lowest activation energy. Li et al [23] studied the catalytic pyrolysis kinetics of industrial lignins (by-products of the pulp and paper industry) with HZSM-5 as a catalyst in a coupling of thermogravimetry and Fourier transform infrared spectroscopy (TG-FTIR) and used…”

Section: Introductionmentioning

confidence: 99%

Reaction chemistry and kinetics of corn stalk pyrolysis without and with Ga/HZSM-5

Huang

Xie

Yang

et al. 2018

J Therm Anal Calorim

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The bifunctional Ga/HZSM-5 catalyst has been proven having the capabiliity to increase the selectivity of aromatics production during catalytic pyrolysis of furan and woody biomass. However, the reaction chemistry and kinetics of pyrolysis of herbaceous biomass promoted by Ga/HZSM-5 is rarely reported. Pyrolysisgas chromatography / mass spectrometry (Py-GC/MS) analysis and nonisothermal thermogravimetric (TG) analysis at four heating rates were carried out to investigate the decomposition behavior and pyrolysis kinetics of corn stalk without and with Ga/HZSM-5. The effective activation energies for corn stalk pyrolysis were calculated by using the Friedman isoconversional method. The Py-GC/MS analysis results indicated that the Ga/HZSM-5 catalyst had a high selectivity towards producing the aromatic chemicals of xylene, toluene and benzene, whereas the major products from noncatalytic pyrolysis of corn stalk were oxygenated compounds. The presence of Ga/HZSM-5 could significantly reduce the effective activation energies of corn stalk pyrolysis from 159.9-352.4 kJ mol-1 to 41.6-99.8 kJ mol-1 in the conversion range of 0.10-0.85.

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“…catalysts in a TGA and semi-batch pyrolyzer. It was found that alumina showed the best performance, achieving the highest biooil yield and lowest activation energy (Poddar et al, 2015). Song et al (2020) investigated the catalytic effects of iron ore and iron oxide on the pyrolysis of municipal solid waste in a TGA and fixed-bed reactor, and reported that the activation energy decreased from 180 kJ/mol to ∼151 kJ/mol after using iron ore and iron oxide, with an increase in conversion rate by up to 55% for municipal solid waste pyrolysis.…”

Section: Resultsmentioning

confidence: 99%

Data_Sheet_1.docx

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Catalytic pyrolysis of lignocellulosic bio-packaging (jute) waste – kinetics using lumped and DAE (distributed activation energy) models and pyro-oil characterization

Abstract: The present study concentrates on the catalytic pyrolysis of a waste bio-packaging material, namely, jute, under iso-thermal and non-isothermal conditions using a 50 mm diameter and 164 mm long semi-batch pyrolyzer and a TGA set-up, respectively.

Cited by 15 publications

References 57 publications

Synergistic Effects of Catalyst Mixtures on Biomass Catalytic Pyrolysis

Synergistic Effects of Catalyst Mixtures on Biomass Catalytic Pyrolysis

Reaction chemistry and kinetics of corn stalk pyrolysis without and with Ga/HZSM-5

Data_Sheet_1.docx

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