Cradle-To-Gate Analyses of Biochar Produced from Agricultural Crop Residues by Vacuum Pyrolysis DOI Creative Commons
Nakum Divyangkumar, N. L. Panwar, Chitranjan Agrawal

et al.

Clean Energy, Journal Year: 2024, Volume and Issue: 8(6), P. 1 - 15

Published: Aug. 22, 2024

Abstract Agricultural waste, if not managed efficiently, can pose significant environmental threats. Biochar production, a cost-effective solution, offers potential to significantly reduce carbon dioxide emissions and thereby combat climate change. However, the impact of this process is uniform varies depending on agricultural residue used. These impacts, spanning entire lifecycle from cultivation disposal, underscore necessity thorough assessment before biochar be widely adopted for practical applications. This study employs cradle-to-gate approach evaluate life cycle (LCAs) producing various agro-residues, such as rice husk, sugarcane bagasse (SB), corn cob (CC). The LCA was conducted using SimaPro software, version 9.5.0.1, ReCiPe method. results indicate that CC has highest across most categories, while husks exhibit higher water consumption (2.8 × 103 m3). Using diesel, electricity, fertilizers contributes global warming (GWP). SB shows negligible during biomass cultivation. pyrolysis processes high implications indicators. Applying soil sequestration improvement GWP. Sensitivity analysis demonstrates notable reduction in GWP cumulative energy demand, approximately 10%–24% 4–11 MWh, respectively. Paddy husk production have lesser impact. Changing sources growth influences factors.

Language: Английский

Comparative Assessment of Elemental Concentrations in Urban Tree Species and PM2.5 Emitted from Their Combustion DOI Creative Commons

Mark Bayo Turay,

Yuanfan Ma,

Aicong Zeng

et al.

Atmosphere, Journal Year: 2025, Volume and Issue: 16(4), P. 399 - 399

Published: March 30, 2025

This study examines the variations of elements in PM2.5 emitted from biomass burning urban settings, which raises health concerns among dwellers. It specifically focused on how Sodium (Na), Calcium (Ca), Potassium (K), and Phosphorus (P) concentrations tree combustibles affect their during combustion. Understanding these interactions is critical for evaluating air quality its public effects. Urban landscape coniferous broad-leaf species (branches leaves) were assessed, data processed using Microsoft Excel, Origin Pro 2024, R Studio. was discovered that organs had a common elemental concentration pattern (Ca > K P Na) but different PM2.5. Quantitatively, varied, with Ca being most abundant (69.85 mg/kg) least (3.97 mg/kg). In PM2.5, contrary observed, i.e., Na (which concentrated combustibles) became prominent; highest levels recorded conifers (Na = 0.86 Among assessed lowest all tests, having values (P 0.02 The SEM result further revealed that, quantitatively, does not necessarily mean they will be higher These highlighted importance considering species, organ types, when assessing impacts combustion human health.

Language: Английский

Citations

0
How Do Emission Factors Contribute to the Uncertainty in Biomass Burning Emissions in the Amazon and Cerrado? DOI Creative Commons
Guilherme Mataveli, Matthew W. Jones, Gabriel Pereira

et al.

Atmosphere, Journal Year: 2025, Volume and Issue: 16(4), P. 423 - 423

Published: April 4, 2025

Fires drive global ecosystem change, impacting carbon dynamics, atmospheric composition, biodiversity, and human well-being. Biomass burning, a major outcome of fires, significantly contributes to greenhouse gas aerosol emissions. Among these, fine particulate matter (PM2.5) is particularly concerning due its adverse effects on air quality health, substantial yet uncertain role in Earth’s energy balance. Variability emission factors (EFs) remains key source uncertainty estimates. This study evaluates PM2.5 sensitivity EFs variability Brazil’s Amazon Cerrado biomes over 2002–2023 using the 3BEM_FRP model implemented PREP-CHEM-SRC tool. We updated with values ranges from Andreae (2019), which reflect more comprehensive literature review than earlier datasets. The results reveal that annual average emissions varied by up 162% (1213 Gg yr−1 3172 yr−1) 184% (601 1709 yr−1). Average peak at grid-cell level reached 5688 Mg “Arc Deforestation” region under High-end EF scenario. Notably, forest areas increased time despite shrinking cover, indicating Amazonian forests are becoming vulnerable fire. In Cerrado, savannas primary land cover contributing total emissions, accounting for 64% 80%. These findings underscore importance accurate, region-specific improving models reducing uncertainties.

Language: Английский

Citations

0
A full-scale staged, pressurized oxy-biomass combustion towards BECCS: Performance assessment via CFD approach DOI
Xiangdong Li, Hui Lin, Guan Wang

et al.

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 136262 - 136262

Published: April 1, 2025

Language: Английский

Citations

0
Dual-phase valorization of chicken feathers and Delonix regia biomass into biochar and pozzolan using a top-lit updraft gasifier DOI

Tunmise Latifat Adewoye,

Stephen Emmanuel Sunday,

Ebuka Chizitere Emenike

et al.

Biofuels, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 13

Published: May 12, 2025

Language: Английский

Citations

0
Cradle-To-Gate Analyses of Biochar Produced from Agricultural Crop Residues by Vacuum Pyrolysis DOI Creative Commons
Nakum Divyangkumar, N. L. Panwar, Chitranjan Agrawal

et al.

Clean Energy, Journal Year: 2024, Volume and Issue: 8(6), P. 1 - 15

Published: Aug. 22, 2024

Abstract Agricultural waste, if not managed efficiently, can pose significant environmental threats. Biochar production, a cost-effective solution, offers potential to significantly reduce carbon dioxide emissions and thereby combat climate change. However, the impact of this process is uniform varies depending on agricultural residue used. These impacts, spanning entire lifecycle from cultivation disposal, underscore necessity thorough assessment before biochar be widely adopted for practical applications. This study employs cradle-to-gate approach evaluate life cycle (LCAs) producing various agro-residues, such as rice husk, sugarcane bagasse (SB), corn cob (CC). The LCA was conducted using SimaPro software, version 9.5.0.1, ReCiPe method. results indicate that CC has highest across most categories, while husks exhibit higher water consumption (2.8 × 103 m3). Using diesel, electricity, fertilizers contributes global warming (GWP). SB shows negligible during biomass cultivation. pyrolysis processes high implications indicators. Applying soil sequestration improvement GWP. Sensitivity analysis demonstrates notable reduction in GWP cumulative energy demand, approximately 10%–24% 4–11 MWh, respectively. Paddy husk production have lesser impact. Changing sources growth influences factors.

Language: Английский

Citations

3