Impacts of cationic polyacrylamide flocculant and elevated pH on the harvesting of the diatom Phaeodactylum tricornutum

Journal of Applied Phycology, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Language: Английский

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Effect of Methane on Combustion of Glycerol and Methanol Blends Using a Novel Swirl Burst Injector in a Model Dual-Fuel Gas Turbine Combustor

Clean Technologies, Journal Year: 2024, Volume and Issue: 6(4), P. 1445 - 1464

Published: Oct. 23, 2024

Glycerol, a byproduct of biodiesel, has moderate energy but high viscosity, making clean combustion challenging. Quickly evaporating fine fuel sprays mix well with air and burn cleanly efficiently. Unlike conventional air-blast atomizers discharging jet core/film, newly developed swirl burst (SB) injector generates at the injector’s immediate exit, even for high-viscosity fuels, without preheating, using unique two-phase atomization mechanism. It thus resulted in ultra-clean glycerol/methanol (G/M) blends, complete G/M 50/50 ratios by heat release rate (HRR). Lower efficiencies were observed 60/40 70/30, representing crude glycerol. Hence, this study investigates effect premixed methane amount from 0–3 kW, atomizing gas to liquid mass ratio (ALR) on dual-fuel efficiency 60/40-methane 7-kW lab-scale swirl-stabilized turbine combustor facilitate glycerol use. Results show that more increased ALR cause varying flame lift-off height, length, product temperature. Regardless, mainly lean-premixed combustion, near-zero CO NOx emissions (≤2 ppm), ~100% are enabled all cases SB assistance small methane.

Language: Английский

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Maximizing microbial activity and synergistic interaction to boost biofuel production from lignocellulosic biomass

Archives of Microbiology, Journal Year: 2024, Volume and Issue: 206(11)

Published: Oct. 29, 2024

Language: Английский

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A CHEMCAD Software Design Approach for Non-Conventional Biodiesel Production Using Methyl Acetate as Feedstock

Energies, Journal Year: 2024, Volume and Issue: 17(17), P. 4504 - 4504

Published: Sept. 8, 2024

Biodiesel is a sustainable and renewable fuel generated from resources, including vegetable oil or animal fats. It thought to be non-toxic that degrades gradually causes no harm the environment. In present study, non-conventional supercritical method for industrial biodiesel production investigated. The refers single-step interesterification reaction between triglycerides methyl acetate resulting in esters of fatty acids triacetin as secondary product. Process flowsheet modeling, using CHEMCAD chemical engineering software, was used an investigation tool. capacity set 25,000 kg/h biodiesel. Methyl requested produced methanol esterification with acetic acid intensified reactive distillation unit. Methanol, turn, obtained synthetic gas derived biomass raw material, process representing new at level solve problems related energy required, storage disposal residual materials, pollution through release pollutants into air. synthesis similar one based on natural gas, consisting three main steps, namely: (i) production, followed by (ii) (iii) purification. Acetic essential product, proposed approach low consumption air emissions, more exactly carbonylation. All processes previously mentioned: (iv) were modeled simulated, leading desired productivity (e.g., kg/h) purity being higher than 99%. Relevant discussions regarding design assumptions used, simulation validation results, well other technical issues (i.e., electricity thermal consumption) system are provided, conclusion route suited application can deliver significant results. outcomes have provided confidence feasibility effectiveness chosen design, making it viable option further development implementation.

Language: Английский

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Influence of Methyl and Ethyl Esters-Based Biodiesel Synthesized from Safflower Oil on the Performance, Combustion and Exhaust Emissions

Published: Jan. 1, 2024

Language: Английский

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