Effect of hydrothermal carbonization pretreatment on the pyrolysis behavior of the digestate of agricultural waste: A view on kinetics and thermodynamics

Wang, Shule; Wen, Yuming; Niedźwiecki, Łukasz; Baranowski, Marcin; Czerep, Michał; Mu, Wangzhong; Pawlak-Kruczek, Halina; Jönsson, Pär G.; Yang, Weihong

doi:10.1016/j.cej.2021.133881

Cited by 19 publications

(13 citation statements)

References 78 publications

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“…Moisture content (MC) is defined as the ratio of moisture to the weight of the solid fuel on a dry basis (Wang et al, 2022). Briefly, the MC was determined using ASTM D-3173 by oven drying 10 g of the samples placed in a crucible without a lid at the temperature of 105 °C or 110 °C for 1 h. The MC (%) was determined using Eq.…”

Section: Moisture Content Analysismentioning

confidence: 99%

“…Further interaction of the NiNPs with the DCP in the pyrolysis tube reactor at elevated temperature (600 ℃) enhanced the production of highly carbonaceous biochar and bio-oil of improved fuel properties due to the reduction of the catalyst to metallic Ni by carbon, CO and H 2 as expressed in Eq. ( 14) (Wang et al, 2022;Zhang et al, 2022b).…”

Section: Effect Of Temperature and Heating Rate On The Bio-products Y...mentioning

confidence: 99%

“…Hence, avid demand for fossil fuels has resulted in environmental challenges such as acid rain, biodiversity loss, soil pollution, global warming due to harmful greenhouse gas emissions from the combustion of fossil fuels and water pollution due to oil spillage ( Pant and Rai, 2021 ). The associated problems of fossil fuel usage have led to increased research, development and utilization of sustainable alternative fuels that are renewable and environmentally friendly ( Karuppasamy Vikraman et al., 2021 ; Rasam et al., 2022 ; S. Wang et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

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Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

Egbosiuba

2022

Heliyon

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Section: Moisture Content Analysismentioning

confidence: 99%

Section: Effect Of Temperature and Heating Rate On The Bio-products Y...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

Egbosiuba

2022

Heliyon

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“…Bioelectrochemical technique for biogas upgrading Biogas upgrading via a bioelectrochemical system has attracted great attention due to various benefits, including waste recovery, low energy input, reduced sludge production, no need for aeration, and the formation of value-added substances (Wang et al 2022a;Aryal et al 2022). Carbon dioxide transfer assisted by bioelectrochemical systems can withstand fluctuations in electricity supply, overcoming the instabilities associated with renewable energy (del Pilar Anzola Rojas et al 2018).…”

Section: Improving Hydrogen Mass Transfer and Utilisation Efficiencymentioning

confidence: 99%

Integration of biogas systems into a carbon zero and hydrogen economy: a review

et al. 2022

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The Ukraine conflict has put critical pressure on gas supplies and increased the price of fertilisers. As a consequence, biogas has gained remarkable attention as a local source of both gas for energy and biofertiliser for agriculture. Moreover, climate change-related damage incentivises all sectors to decarbonise and integrate sustainable practices. For instance, anaerobic digestion allows decarbonisation and optimal waste management. Incorporating a biogas system in each country would limit global warming to 2 °C. If suitable policies mechanisms are implemented, the biogas industry could reduce global greenhouse gas emissions by 3.29–4.36 gigatonnes carbon dioxide equivalent, which represent about 10–13% of global emissions. Here, we review the role of the biogas sector in capturing methane and mitigating carbon emissions associated with biogas outputs. Since biogas impurities can cause severe practical difficulties in biogas storing and gas grid delivering systems, we present upgrading technologies that remove or consume the carbon dioxide in raw biogas, to achieve a minimum of 95% methane content. We discuss the role of hydrogen-assisted biological biogas upgrading in carbon sequestration by converting carbon dioxide to biomethane via utilising hydrogen generated primarily through other renewable energy sources such as water electrolysis and photovoltaic solar facilities or wind turbines. This conceptual shift of 'power to gas' allows storing and utilising the excess of energy generated in grids. By converting carbon dioxide produced during anaerobic digestion into additional biomethane, biogas has the potential to meet 53% of the demand for fossil natural gas. We also evaluate the role of digestate from biogas systems in producing biochar, which can be used directly as a biofertiliser or indirectly as a biomethanation enhancement, upgrading, and cleaning material.

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“…The pyrolysis kinetics of these hydrochars are based on first‐order and n th‐order Arrhenius models. Algorithms that have been used to estimate the kinetic parameters include the Coats–Redfern, Kissinger–Akahira–Sunose, Flynn–Wall–Ozawa, Friedman, and discrete‐distributed activation energy models 39–51 . Connecting these kinetics to particle‐scale models is essential to construct computational fluid dynamic (CFD) simulations, which can be used to assess and optimize reactor performance.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis kinetics of hydrochar using distributed activation energy model

Kamal

Hossain

Salma

et al. 2022

Biofuels Bioprod Bioref

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Producing hydrochar from landfill municipal solid wastes (MSW) is a sustainable alternative to existing waste management practices in low-and middle-income countries. In this study, mixed MSW feedstock (sent for landfilling) was subjected to hydrothermal carbonization to produce hydrochars. The hydrochar showing the highest heating value was subjected to pyrolysis at 5, 10, and 20 K min −1 heating rates. Based on the pyrolysis characteristics, a three pseudo-component-based distributed activation energy model was employed to describe the pyrolysis kinetics. The activation energy distributions for the three pseudo-components were 140 ± 8.7 kJ mol −1 , 190 ± 1 kJ mol −1 and 175.9 ± 24.9 kJ mol −1 , which were able to predict the pyrolysis profile at all heating rates with R 2 > 0.999. Differential thermogravimetric profiles of the hydrochar revealed its pyrolytic reactivity to resemble lignocellulosic constituents. Fouriertransform infrared analysis of the hydrochar showed retention of oxygen-containing functional groups (associated with lignocellulosic constituents) from the parent feedstock.

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Effect of hydrothermal carbonization pretreatment on the pyrolysis behavior of the digestate of agricultural waste: A view on kinetics and thermodynamics

Cited by 19 publications

References 78 publications

Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

Integration of biogas systems into a carbon zero and hydrogen economy: a review

Pyrolysis kinetics of hydrochar using distributed activation energy model

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