Exploring the influence of solar pyrolysis operation parameters on characteristics of carbon materials

Ayala-Cortés, Alejandro; Lobato-Peralta, Diego Ramón; Arreola-Ramos, Carlos E.; Martínez-Casillas, D.C.; Pacheco-Catalán, Daniella Esperanza; Cuentas-Gallegos, Ana Karina; Arancibia-Bulnes, Camilo A.; Villafán-Vidales, Heidi Isabel

doi:10.1016/j.jaap.2019.04.006

Cited by 39 publications

(6 citation statements)

References 38 publications

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“…Viability as an electrode material for energy storage devices was investigated for materials that showed the best textural properties in terms of their specific surface areas and surface functional groups. This selection was based on the results of our previous studies [45][46][47][48] since, materials with specific surface areas higher than 600 m 2 /g displayed good electrochemical properties. The biochar powder (particle size less than 0.25 mm) was processed to form self-standing 1 cm 2 films.…”

Section: Electrochemical Characterizationmentioning

confidence: 99%

Evaluation and selection of biochars and hydrochars derived from agricultural wastes for the use as adsorbent and energy storage materials

Lang

Matějová

Cuentas-Gallegos

et al. 2021

Journal of Environmental Chemical Engineering

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Section: Electrochemical Characterizationmentioning

confidence: 99%

Evaluation and selection of biochars and hydrochars derived from agricultural wastes for the use as adsorbent and energy storage materials

Lang

Matějová

Cuentas-Gallegos

et al. 2021

Journal of Environmental Chemical Engineering

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“…Compared to hybrid or direct heating with pure biomass particles or a mixture of sorbent and biomass particles, indirect heating can provide a high heating rate. In the future, microwave absorption and heat transfer between microwave absorbent and biomass particles should be studied to understand the temperature profiles of different heating modes and their effect on reactor efficiency [127].…”

Section: Prospects and Developments In The Pyrolysis Technologymentioning

confidence: 99%

Pyrolysis of Waste Biomass – Technical and Process Achievements, and Future Development – A Review

Igliński¹,

Kujawski²,

Kiełkowska³

2023

Preprint

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Pyrolysis has been applied in the human economy for many years, and it has become a significant alternative to the production of chemical compounds, including biofuels. The article focuses mostly on recent achievements in the technical and processing aspects of pyrolysis. This review provides an overview of the recent advanced pyrolysis technology used in gas, bio-oil, and biochar production. The key parameters to maximize the production of specific chemical compounds were discussed and considered during the construction of the reactors. The emphasis is put on optimizing the process parameters, technical requirements, and renewable energy use in the process and conception to improve the efficiency of product production. The application of pyrolysis gas, oil, and biochar as valuable chemical compounds are related to the intensifying effects of climate change, biofuel production, and waste management in accordance with the principles of sustainable development.

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“…On the one hand, the uneven solar thermal power will cause incomplete pyrolysis of the feedstock and non-negligible thermal cyclic stresses. , On the other hand, the directivity and large power density of the concentrated solar radiation can lead to the overheating of the absorption component. Consequently, these particularities result in increasing the difficulty in controlling the product quality. , …”

Section: Introductionmentioning

confidence: 99%

“…Consequently, these particularities result in increasing the difficulty in controlling the product quality. 20,26 (2) The second is heat transfer enhancements inside the reaction chamber. Increasing the size of the packed-bed causes overlying thermal resistance and, therefore, makes a large part of the feedstock react under an unexpected heating rate or terminal temperature.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, extensive studies focus on the reactor design, and many different types of reactors have been developed, including the fluidized bed, , molten-salt pool, , vortex-flow cavity, , and packed-bed . The packed-bed reactor is characterized by its reliability, simplicity of operation, and an outstanding adaptability to the moist feedstock of any shape and size. , Ayala-Cortés et al carried out pyrolysis experiments of 25 g bagasse fibers in the 25 kW IER-UNAM solar furnace to investigate the impact of the temperature and heating rate on the carbon composition, structure, surface area, and electrochemical response. Sobek et al conducted a comparative study of the products’ distribution and the in situ heating behavior of waste biomass pyrolysis (fixed pellets with 18 mm diameter) driven by a 1.6 kW xenon lamp, revealing the gaseous species evolution of the solar pyrolysis process.…”

Section: Introductionmentioning

confidence: 99%

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Design of a Self-Management Solar Pyrolysis Packed-Bed Reactor by Coupling Thermal Energy Storage

et al. 2023

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A new packed-bed reactor coupled with thermal energy storage (TES) for solar pyrolysis of biomass is developed to overcome the shortcomings of solar energy. The numerical model of a 3.5 kW reactor is formulated by coupling heat and mass transfer balances to chemical kinetics for biomass pyrolysis. It is solved numerically by finite element techniques. The model is applied to analyze the influence of the storage component on the thermal and chemical performance of the pyrolysis process. A new criterion Y defined as the ratio of the char yield and the effective solar power input is proposed to evaluate the effectiveness of solar power input. Under different solar radiation conditions, the coupled TES reduces the solar energy consumption for the char production by over 16%. The storage component can alleviate the overheating and thermal cyclic stresses on the absorption surface. As compared to the non-TES design, the new design can decrease the temperature fluctuation on the absorption surface for over 300 K during solar intermittencies. Moreover, the latent heat in the storage component makes the pyrolysis process stable. Under short-term interruptions, the variation of char yield in the terminal temperature range of 623−673 K is as large as 34.9% in the non-TES design, and it can be decreased to 16.5% after coupling TES. This value can also be decreased from 66.8% to 17.0% under long-term interruptions by coupling the storage.

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Exploring the influence of solar pyrolysis operation parameters on characteristics of carbon materials

Cited by 39 publications

References 38 publications

Evaluation and selection of biochars and hydrochars derived from agricultural wastes for the use as adsorbent and energy storage materials

Evaluation and selection of biochars and hydrochars derived from agricultural wastes for the use as adsorbent and energy storage materials

Pyrolysis of Waste Biomass – Technical and Process Achievements, and Future Development – A Review

Design of a Self-Management Solar Pyrolysis Packed-Bed Reactor by Coupling Thermal Energy Storage

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