Catalytic Upgrading of Rice Straw Bio-Oil via Esterification in Supercritical Ethanol over Bimetallic Catalyst Supported on Rice Straw Biochar

Energies, Год журнала: 2024, Номер 17(2), С. 407 - 407

Опубликована: Янв. 13, 2024

This research explores the enhancement of bio-oil quality through upgrading with magnetic bimetallic oxide (CuO-Fe3O4) catalysts supported on activated rice straw biochar (AcB). These were employed in a supercritical ethanol-based process. Various characterization techniques, including elemental analysis, Fourier transform infrared (FTIR), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) thermogravimetric analysis (TGA), and scanning electron microscopy (SEM), utilized to characterize prepared catalysts. study revealed significant improvements physical characteristics chemical composition bio-oil, an increase heating value (HHV) from 21.3 32.1 MJ/kg. Esterification transesterification identified as key reactions contributing this improvement. Notably, pH increased 4.3 (raw bio-oil) 5.63 (after upgrading), signifying reduced acidity. The bio-oil’s highlighted decrease oxygen content carbon hydrogen content. At optimum conditions, application ethanol proved be efficient method for enhancing properties. A crucial transformation occurred during process more than 90% carboxylic acids converted into esters, primarily ethyl acetate at optimal conditions. has demonstrated effective raw utilization carbon-based procedure.

Язык: Английский

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Methodologies for bio-oil characterization from biomass pyrolysis: a review focused on GC-MS

Journal of Analytical and Applied Pyrolysis, Год журнала: 2024, Номер unknown, С. 106850 - 106850

Опубликована: Ноя. 1, 2024

Язык: Английский

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Low Molecular Weight Biobased Aromatics from Pyrolysis Liquids Using Zeolites: Yield Improvements by Using Pyrolysis Oil Fractions

ACS Omega, Год журнала: 2025, Номер 10(2), С. 1901 - 1910

Опубликована: Янв. 7, 2025

Pyrolysis liquids from lignocellulosic biomass have the potential to be used as a feed for aromatics such benzene, toluene, and xylenes (BTX) using catalytic upgrading with zeolites. We here report an experimental study on conversion of various pyrolysis oil fractions determine most suitable one BTX synthesis. For this purpose, liquid was fractionated several extraction/distillation steps give four different chemical compositions. The were analyzed in detail nuclear magnetic resonance spectroscopy, elemental analysis, gas chromatography-mass thermogravimetric Karl-Fischer titration, gel permeation chromatography. Catalytic experiments carried out tandem microreactor H-ZSM-5 (23) catalyst. highest yield 24% (on carbon dry basis) obtained enriched phenolics, whereas all others gave far lower yields (4.4-9%, basis). Correlations established between composition fraction yield. These findings support concept biorefinery, where is separated into well-defined before further dedicated conversions biobased chemicals biofuels tailored catalysts.

Язык: Английский

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Enhanced Bio-Oil Production from Co-Pyrolysis of Cotton Seed and Polystyrene Waste; Fuel Upgrading by Metal-Doped Activated Carbon Catalysts

Journal of the Energy Institute, Год журнала: 2025, Номер unknown, С. 102007 - 102007

Опубликована: Янв. 1, 2025

Язык: Английский

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Rice Husk for Production of Multifunctional Liquid Smoke

Опубликована: Янв. 1, 2025

Язык: Английский

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Bioenergy Conversion Strategy of Olive Pomace Using Pyrolysis Process: Effect of Temperature on Yield and Product Analysis

Arabian Journal for Science and Engineering, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Язык: Английский

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Stability and carbon sequestration potential of bamboo biochar

Biomass Conversion and Biorefinery, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Язык: Английский

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Utilization of co-substrates in municipal sewage sludge co-pyrolysis: yields and characterization of biochar, bio-oil, and syngas, with economic feasibility analysis

Journal of Analytical and Applied Pyrolysis, Год журнала: 2025, Номер unknown, С. 107091 - 107091

Опубликована: Март 1, 2025

Язык: Английский

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Granulated organomineral fertilizers from by-products of the agricultural and forestry sector

Scientia Agricola, Год журнала: 2025, Номер 82

Опубликована: Янв. 1, 2025

ABSTRACT The present study evaluated the granular properties of organomineral fertilizers produced from charcoal fines (biochar) and natural phosphate with three distinct binders: cassava wastewater (CW), pyroligneous extract (PE), bio-oil (BO). objective was to ascertain potential these increase common bean production. To form granules, a 3:1 ratio biochar employed, along five binder doses (50, 75, 100, 125, 150 % biochar-phosphate mixture weight). granules were based on their crushing strength, water absorption (WAR), granule density, impact resistance index (IRI), salinity (SI), pH. most optimal selected for experiment bean, using completely randomized design in 3 × 4 + factorial scheme replications. treatments comprised binders (CW, PE, BO), four (75, %), controls: unfertilized soil (NS), (NP), mixed (B NP), (B). Compared CW or PE BO exhibited superior resistance, IRI, accompanied by reduced WAR. higher SI lower application CW, resulted significant shoot dry matter (SDM), values 98.31, 123.73, 47.46 %, respectively, compared NS. Similarly, root (RDM) notably increased, 331.03, 755.17 141.38 respectively. physicochemical are influenced type used, affecting Further research is needed long-term effects slow-release fertilizers.

Язык: Английский

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Pyrolysis of Hass Avocado (Persea americana) Seeds: Kinetic and Economic Analysis of Bio-oil, Gas, and Biochar Production

BioEnergy Research, Год журнала: 2025, Номер 18(1)

Опубликована: Март 19, 2025

Язык: Английский

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