Understanding the Impacts of Inorganic Species in Woody Biomass for Preprocessing and Pyrolysis- A Review

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 135697 - 135697

Published: March 1, 2025

Language: Английский

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Effect of alkali and ball milling on enhancing biomass depolymerization in the combined mechanochemical catalysis

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 222, P. 119819 - 119819

Published: Oct. 12, 2024

Language: Английский

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Go with the Flow: Additives to Improve the Flowability of Crumbled Corn Stover

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: 13(2), P. 731 - 736

Published: Jan. 9, 2025

Magnesium stearate (MgSt), a common flow additive and anticaking agent, was applied to corn stover feedstocks with three particle sizes. The material handling properties of dry, 15%, 30% moisture content were measured Freeman FT-4 powder rheometer mass hopper calculations. While hydrated biomass typically exhibits poor flowability, introducing MgSt led significant increase in flowability for dry 15% feedstocks, less impact at content. Inverse gas chromatography showed decrease, up 40%, the surface energy MgSt-coated stover. may not be ideal biofuel or chemical production, this study highlights potential additives reduce adhesive cohesive forces, improving feedstock handling.

Language: Английский

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Machine Learning Assisted Cross-Scale Hopper Design for Flowing Biomass Granular Materials

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: 13(16), P. 5838 - 5851

Published: April 16, 2025

The promise of biomass-derived biofuels is often overshadowed by intricate material handling challenges such as hopper clogging and screw feeder jamming. These issues stem from the knowledge gap among particle-scale properties (e.g., particle size), bulk-scale attributes relative density), macro-scale equipment design inclination), flow performance probability clogging). This work combines physical experiments, validated numerical simulations, data augmentation to develop a machine learning-based for flowing granular woody biomass materials. behavior simulated against tests utilizing developed smoothed hydrodynamics (SPH) solver modified hypoplastic model. A comprehensive evaluation performance, including rate, stability, pattern, conducted on an extensive set encompassing various sizes, moisture contents, densities, operating conditions. feed-forward neural network trained optimized with this correlate cross-scale metrics. results reveal promising predictive accuracy seen unseen sets. Further how input affect predicted metrics carried out. indicate that opening width primarily dictates throughput, while density, wall friction, inclination angle, collectively impact stability. Additionally, patterns are predominantly governed angle. Moreover, potential found be exclusively characterized index dedicated combination high dense packing, smooth low angles, small widths substantially elevates risk unstable flows clogging. study serves potent tool milled materials in hoppers all stakeholders biorefineries manufacturing.

Language: Английский

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Multi-scale damage mechanisms of siltstone under combined dry–wet cycling and cyclic loading

Géotechnique Letters, Journal Year: 2025, Volume and Issue: 15(3), P. 1 - 6

Published: June 3, 2025

To investigate the combined effects of dry–wet cycling and cyclic loading on macro- micro-scale damage mechanisms siltstones, a series uniaxial fatigue tests are conducted. The stress–strain response specimens subjected to initially exhibits sparse distribution hysteresis loops, which subsequently changes denser clustering before reverting more dispersed pattern, that is, ‘sparse-dense-sparse’ mode. Macroscopic failure patterns primarily governed by number cycling, with frequency exerting comparatively minor influence. When reaches 45, transition in pattern from tensile- shear-dominated is observed. Microscopic analyses using scanning electron microscopy reveal deterioration induced results reaction feldspar minerals water, leading formation water-soluble clay minerals, process referred as ‘hydrolysis–dissolution effect’. propagation during fragmentation mineral particles under compressive stress, increases interparticle friction. This mechanism termed ‘friction–extrusion interplay shown significantly accelerate rock failure.

Language: Английский

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Shear rate dependency on flowing granular biomass material

Powder Technology, Journal Year: 2024, Volume and Issue: 442, P. 119834 - 119834

Published: May 9, 2024

Language: Английский

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Application of fluid rheology models for milled woody biomass and non-recyclable municipal solid waste particles

IOP Conference Series Earth and Environmental Science, Journal Year: 2024, Volume and Issue: 1330(1), P. 012044 - 012044

Published: May 1, 2024

Abstract Biofuels from biomass and non-recyclable municipal solid waste (N-MSW) can potentially replace aviation fossil fuels. However, the cost-effectiveness is impeded by feedstock handling issues, such as unstable flow or jamming in hoppers feeders. This issue be solved mainly based on enhanced understanding of rheology N-MSW particles, which remains poorly understood. Leveraging discrete continuum-based granular models, this study, we conduct industry-scale hopper testing milled woody biomass, paper, cardboard, foam, thin film, plastic investigate potential using fluid models to characterize behavior. The tests demonstrate different behaviors tested materials, including fast flow, stable-to-unstable varying rates. Numerical simulation utilizing Gudehus-Bauer hypoplastic model demonstrates good agreement with experimental data for rigid those non-Newtonian exhibit promising low computational cost. new rheological are required capture rate flows highly compressible particles paper foam. study advances knowledge particulate materials biofuel production.

Language: Английский

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Flow Properties of Coarse Powders Used in Food Extrusion as a Function of Moisture Content

Processes, Journal Year: 2024, Volume and Issue: 12(6), P. 1246 - 1246

Published: June 18, 2024

The extrusion processing of food powder relies heavily on its moisture content to aid in flow and proper cooking, shaping, and/or puffing. This study focused the impact dynamic shear properties coarse powders (corn meal, wheat farina, granulated sugar). explored were specific basic flowability energy (SBFE), energy, stability index, rate index. angle internal friction, unconfined yield strength, major principal stress, wall friction angle, factor (FF), compressibility. Corn meal exhibited an increase SBFE as increased (6.70 mJ/g at 13.13% 9.14 19.61%) but no change FF (4.94 5.11); farina also showed requirement (5.81 13.73% 9.47 19.57%) a marked decrease ratings (18.47 6.1); sugar requirements (51.73 0.06% 13.58 0.78% content) (8.53 3.47). Overall, upon addition moisture, corn became cohesive yet free-flowing; less compressible more cohesive; free-flowing.

Language: Английский

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Impacts of caking on corn stover – An assessment of moisture content and consolidating pressure

Powder Technology, Journal Year: 2024, Volume and Issue: 438, P. 119661 - 119661

Published: March 18, 2024

Language: Английский

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A high-performance discrete-element framework for simulating flow and jamming of moisture bearing biomass feedstocks

Powder Technology, Journal Year: 2024, Volume and Issue: unknown, P. 120548 - 120548

Published: Dec. 1, 2024

Language: Английский

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