Bioenergy potential analysis of Brazil nut biomass residues through pyrolysis: Gas emission, kinetics, and thermodynamic parameters

Colpani, Daiara; Santos, Vanuza O.; Araujo, Rayanne O.; Lima, Victoria M. R.; Tenório, Jorge Alberto Soares; Coleti, Jorge Luís; Chaar, Jamal S.; Souza, Luiz K.C. de

doi:10.1016/j.clce.2022.100002

Cited by 14 publications

(4 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Normally the release of CO and CO 2 decreases with increasing temperature [50], which is not validated in this case. The intensity of the CO and CO 2 peaks increased between 600 and 800 • C. This can be explained by the fact that calcium carbonate degrades in this temperature region as already mentioned in the TG-DTG analysis, thus the emission of CO 2, which decomposes itself and gives CO with such an intense peak, confirm the appearance of O already in Figure 4d.…”

Section: Tg-dtg Tg-ms and Dsc Analysismentioning

confidence: 60%

Physicochemical Characterization, Thermal Behavior, and Pyrolysis Kinetics of Sewage Sludge

Messaoudi,

Koukouch,

Bakhattar

et al. 2024

Energies

View full text Add to dashboard Cite

Pyrolysis is an energy recovery technique with significant potential for managing wastewater treatment plant byproducts. This research aims to investigate the physicochemical and thermal properties of Moroccan sludge, as well as the behavior of its decomposition during pyrolysis at three different heating speeds (5, 10, and 20 K/min). Characterization of the sludge before pyrolysis through ultimate analysis, proximate analysis, FTIR spectroscopy, and XRD revealed that the sludge consists predominantly of organic matter, with a volatile matter rate of 48%, an ash rate of 37%, and a higher heating value (HHV) of 15 MJ/kg. The TGA-DTG curves identified four distinct stages in the sludge decomposition process: drying, decomposition of organic matter, degradation of calcium carbonate, and decomposition of inorganic matter. Using TG-MS analysis, the principal gases identified during pyrolysis were H2O, H2, CH4, CO2, CO, NO, and SO. The average activation energies (Ea) determined through kinetics models were found to be 413.4 kJ/mol for the Kissinger–Akahira–Sunose (KAS) model, 419.6 kJ/mol for the Flynn–Wall–Ozawa (FWO) model, and 416.3 kJ/mol for the Starink model. The values of Ea and the pre-exponential coefficient (A) obtained through the KAS, FWO, and Starink techniques are consistent with ΔG values ranging between 152 and 155 KJ/mol. The positive ΔS values range from 0.003 to 1.415 kJ/mol.K, indicating the complexity of the sludge response during pyrolysis and the spontaneity of the chemical reaction at high temperatures. The kinetic data obtained serves as a pillar for the development and improvement of sewage sludge pyrolysis systems, reinforcing their role in sustainable energy production.

show abstract

Section: Tg-dtg Tg-ms and Dsc Analysismentioning

confidence: 60%

Physicochemical Characterization, Thermal Behavior, and Pyrolysis Kinetics of Sewage Sludge

Messaoudi,

Koukouch,

Bakhattar

et al. 2024

Energies

View full text Add to dashboard Cite

show abstract

“…Estos valores de poder calorífico superior (PCS) reportados para los residuos de castaña desde 13.8 hasta 29.7 MJ/Kg, son considerados altos respecto a otros tipos de biomasa como la cascarilla de arroz (16.24 MJ/K), paja de trigo (18.9), y eucalipto (19.4 MJ/K) [26]. Por tanto, presentan un gran potencial de aplicación en un proceso de pirólisis para la generación de energía renovable [18].…”

Section: Localización Y Propiedades De Los Residuos De La Industria C...unclassified

Perspectivas en La Utilización De Residuos De La Industria De La Castaña: Procesos Termoquímicos, Revisión Bibliográfica

Marín M,

Surculento Villalobos,

Lopez N.

2023

Rev. Bol. Quim.

View full text Add to dashboard Cite

Se revisaron en bibliografía tecnologías comerciales para la valorización de biomasa boliviana como la castaña. Tres tecnologías resultaron promisorias: gasificación, pirólisis y licuefacción hidrotermal. Los productos finales en las tres tecnologías son: sólidos (biochar), líquidos (bioaceite) y gas (gas de síntesis), en diferentes proporciones. La gasificación genera 85% de gas, 10% de sólido y 5% líquido. La pirólisis genera entre 30-75% de líquidos, 12-35% de sólidos y 13-35% de gases. La licuefacción hidrotermal genera entre 20-50% de biocrudo, 40-60% de fase acuosa, 10-20% de fase sólida y menos de un 5% de gas. En el caso de la gasificación, el enfoque principal es la producción de energía. Los procesos pirolíticos se enfocan en producir bioaceites. En los procesos de licuefacción hidrotermal, el producto más importante es el biocrudo. En base al tipo de producto deseado se deben considerar las características fisicoquímicas de la biomasa, las etapas de pretratamiento, los tipos de reactores a utilizar, las condiciones de operación y los procesos complementarios. Todos estos tópicos son de gran importancia al momento de implementar una tecnología para la conversión de residuos de la industria castañera.

show abstract

“…As countries worldwide grapple with the challenges of climate change, energy security, and sustainable agriculture, the potential of solid waste pyrolysis has ignited the enthusiasm of scientists, policymakers, and environmentalists alike. Countries such as the United States, Brazil, China, and India have already made substantial investments in the development of pyrolysis technologies [18][19][20]. Government-funded initiatives and international collaborations have placed a significant emphasis on advancing the field of solid waste pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

Reviewing Air Pollutants Generated during the Pyrolysis of Solid Waste for Biofuel and Biochar Production: Toward Cleaner Production Practices

2024

Sustainability

View full text Add to dashboard Cite

The production of biofuels and biochar through pyrolysis is a promising avenue for sustainable energy generation and waste management. However, this process can inadvertently release various air pollutants into the atmosphere, potentially compromising its environmental benefits. This article provides a comprehensive overview of the gas pollutants associated with pyrolysis for biofuel and biochar production, as well as different variables affecting gas emissions. Key pollutants such as particulate matter (PM), volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), carbon monoxide (CO), and nitrogen oxides (NOx) have been discussed in terms of their formations and emissions during pyrolysis processes. Furthermore, major factors influencing pollutant emissions, including feedstock composition, pyrolysis conditions, and combustion technologies have been examined with up-to-date examples. The review highlights the significance of emission control strategies, such as advanced reactor design, catalyst utilization, and the integration of realtime monitoring systems, in mitigating air pollution from pyrolysis processes. By shedding light on the environmental challenges associated with pyrolysis-based biofuel and biochar production, this article aims to encourage the development of cleaner and more sustainable approaches to harness the potential of solid waste conversion technologies.

show abstract

Bioenergy potential analysis of Brazil nut biomass residues through pyrolysis: Gas emission, kinetics, and thermodynamic parameters

Cited by 14 publications

References 48 publications

Physicochemical Characterization, Thermal Behavior, and Pyrolysis Kinetics of Sewage Sludge

Physicochemical Characterization, Thermal Behavior, and Pyrolysis Kinetics of Sewage Sludge

Perspectivas en La Utilización De Residuos De La Industria De La Castaña: Procesos Termoquímicos, Revisión Bibliográfica

Reviewing Air Pollutants Generated during the Pyrolysis of Solid Waste for Biofuel and Biochar Production: Toward Cleaner Production Practices

Contact Info

Product

Resources

About