Elucidation of synergism in Ce-Zr/SBA-15 mesoporous catalysts and the effects on the activity in selective glycerol to lactic acid reaction

Powder Technology, Journal Year: 2024, Volume and Issue: 444, P. 120048 - 120048

Published: Aug. 1, 2024

Language: Английский

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Engineering in ceramic albite morphology by the addition of additives: Carbon nanotubes and graphene oxide for energy applications

Nanotechnology Reviews, Journal Year: 2024, Volume and Issue: 13(1)

Published: Jan. 1, 2024

Abstract The synthesis of zeolite nanoparticles is studied comprehensively by adding an organic template as a reflux method, extracted from crystals. nano-crystals are quite effectively synthesized incorporating silica, template, and alkali metal. tetrapropylammoniumhydroxide, tetrapropylammoniumbromide tetraethyl orthosilicate (TEOS) templates added for the assistance (albite) A cross-linker TEOS also mixed. Adding carbon nanotubes graphene oxide made morphology albite more interesting. Nucleation time important feature formation nano-shaped crystal developed instance when reaction less than 240 h, after this period size increases with time. Batch 1 prepared additives testing its morphology, like surface area, particle shape, geometry. general trend ( e.g. , pore volume, percentage composition, size, geometry) nano-crystal explained help robust techniques such Fourier transform infrared spectroscopy, X-ray diffraction, Brunauer–Emmett–Teller, energy-dispersive scanning electron microscopy.

Language: Английский

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Techno-economic assessment of flare gas valorisation during membrane-based GTL process by net-zero strategy

Energy Conversion and Management, Journal Year: 2024, Volume and Issue: 315, P. 118796 - 118796

Published: July 19, 2024

This study focuses on the techno-economic comparison of flare gas from an industrial stream valorisation into liquid fuels, comparing conventional gas-to-liquid (GTL) and membrane-based processes. Both processes encompass sweetening, synthesis production, FT units. Integration GTL could decrease overall fuel production by 1.5%, with power requirements 47.3% higher lower energy steam demand 25.8% 21% respectively. The initial analysis indicates a 23.3% in total carbon emissions for Membrane-based process compared to Conventional process. demonstrates potential 13% reduction capital investment 11.8% cost products, coupled remarkable 22.5% return investment. Moreover, payback period is reduced approximately 20.9%. In sweetening unit, costs increase 5%. comparison, unit offers cost-saving approach around 10.4%. Hence, incorporation membranes throughout will yield substantial profitability. Upon conducting in-depth it becomes evident that enhancing permeability over 200% potentially reduce unit. Consequently, this renders more preferable lucrative than amine

Language: Английский

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Microwave-catalyzed co-pyrolysis of Chlorella vulgaris and marine waste plastics using Ni-Fe@C bifunctional catalyst: Characterization, pyrolysis oil analysis and reaction mechanism

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113859 - 113859

Published: Aug. 17, 2024

Language: Английский

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Influence of retention time and catalyst concentrations on catalytic pyrolysis yields of polyethylene and polystyrene

Energy Sources Part A Recovery Utilization and Environmental Effects, Journal Year: 2024, Volume and Issue: 46(1), P. 5072 - 5093

Published: March 31, 2024

The present work focuses on enhancing the liquid fraction yields having hydrocarbons in diesel fuel range from pyrolysis of PS/PE (1:1 wt.%) under influence ZSM–5 catalysts an autoclave reactor. product and their compositions were investigated for varied catalyst concentrations (0%, 5%, 7.5%, 10%), reaction temperatures (250–500°C), retention times (20–60 min). physical chemical characterization feedstocks, catalysts, thermally catalytically derived oils carried out along with elemental analysis products. It was observed that 7.5% concentration exhibited maximum (71.2 at 350°C a time 30 min. Catalytic cracking 20–30 min produced aromatic, aliphatic, isomerized hydrocarbon contents 42.9%, 30.15%, 14.3%, respectively. Expedite weakening catalytic activity ZSM-5 process higher than calorific values found to be 44.2–44.8 MJ/kg, carbon numbers between C11 C19. Thus, these characteristics make potential candidate used as alternative fuel. Further, proportions aromatics aliphatic compounds compared obtained thermal affirmed its superiority substitute.

Language: Английский

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Co-pyrolysis characteristics and pyrolysis oil analysis of Chlorella vulgaris and marine waste plastics with multi-metal MOFs-derived additive

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 154854 - 154854

Published: Aug. 14, 2024

Language: Английский

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Reaction Synergy of Bimetallic Catalysts on Zsm-5 Support in Tailoring Plastic Pyrolysis for Hydrogen and Value-Added Product Production

Published: Jan. 1, 2024

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Language: Английский

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Tecno-Economic Assessment of Flare Gas Valorisation During Membrane-Based Gtl Process by Net-Zero Strategy

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

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Characteristic research on the liquid product from co-hydrothermal liquefaction of oily scum and lignocellulosic biochar

Thermal Science, Journal Year: 2024, Volume and Issue: 00, P. 183 - 183

Published: Jan. 1, 2024

Hydrothermal liquefaction (HTL) is an effective way to treat solid wastes with high moisture content. The co-hydrothermal (co-HTL) experiments of oily scum (OS) and poplar sawdust biochar (BC) at the different hydrothermal temperatures were performed in this work. changes appearance components liquid products comprehensively studied. results showed that addition BC into OS significantly reduced content residue hydrochars obtained after co-HTL. As temperature increased, from co-HTL turned clearer lighter color, recovery rate increased. could effectively improve quality enhance hydrochars. carbon numbers concentrated C5-C11, which main compositions gasoline. This work can provide basic data theoretical reference for efficient treatment engineering practice.

Language: Английский

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Probing the influence of synthesized hierarchical ZSM-5 catalyst in ex-situ catalytic conversion of real-world plastic waste into aromatic rich liquid oil

Journal of the Energy Institute, Journal Year: 2024, Volume and Issue: unknown, P. 101853 - 101853

Published: Oct. 1, 2024

Language: Английский

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