Effect of gasoline injection pressure and CO2 dilution on the hydrogen knock limit extension in a Hydrogen–Gasoline dual-fuel engine

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 112, P. 121 - 132

Published: Feb. 28, 2025

Language: Английский

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Enhancing plastic pyrolysis for carbon nanotubes synthesis through machine learning integration: A review

Journal of Analytical and Applied Pyrolysis, Journal Year: 2025, Volume and Issue: unknown, P. 106989 - 106989

Published: Jan. 1, 2025

Language: Английский

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A Systematic Literature Review on The Pyrolysis of Plastic Waste and Waste Oil for Fuel Production: Targeted Waste Management Solution for Central Java, Indonesia

Cleaner Waste Systems, Journal Year: 2025, Volume and Issue: unknown, P. 100308 - 100308

Published: May 1, 2025

Language: Английский

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Feasibility study of Renewable Recycled Carbon Fuel Production via Plastic Waste Pyrolysis

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: 495, P. 145035 - 145035

Published: Feb. 13, 2025

Language: Английский

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High-Temperature Steam- and CO2-Assisted Gasification of Oil Sludge and Petcoke

Clean Technologies, Journal Year: 2025, Volume and Issue: 7(1), P. 17 - 17

Published: Feb. 14, 2025

A new high-temperature allothermal gasification technology is used to process three types of oil waste: ground sludge (GOS), tank (TOS), and petcoke. The gasifying agent (GA), mainly composed H2O CO2 at a temperature above 2300 K atmospheric pressure, produced by pulsed detonations near-stochiometric methane-oxygen mixture. experiments show that the dry off-gas contains 80–90 vol.% combustible gas 40–45 CO, 28–33 H2, 5–10 CH4, 4–7 noncondensable C2–C3 hydrocarbons. accompanied removal mass from flow gasifier in form fine solid ash particles with size about 1 μm. have mesoporous structure specific surface area ranging 3.3 15.2 m2/g pore sizes 3 50 nm. measured wall temperatures are reasonable agreement calculated value thermodynamic equilibrium off-gas. CO content good calculations. reduced H2 elevated contents CO2, CxHy apparently associated nonuniform distribution waste/GA ratio gasifier. To increase yield, it necessary improve mixing waste GA. It proposed mix crushed petcoke paste feed combined into using specially designed feeder.

Language: Английский

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Addressing Plastic Waste Challenges in Africa: The Potential of Pyrolysis for Waste-to-Energy Conversion

Clean Technologies, Journal Year: 2025, Volume and Issue: 7(1), P. 20 - 20

Published: March 5, 2025

Plastic waste poses a significant challenge in Africa and around the world, with its volume continuing to increase at an alarming rate. In Africa, estimated 25–33% of daily is made up plastic, posing threat environment, marine life, human health. One potential solution this problem waste-to-energy recycling, such as pyrolysis, which involves conversion materials into oil, char, non-condensable gasses through thermochemical process absence oxygen. Given abundance continent’s energy challenges, pyrolysis offers sustainable solution. This review delves concept products, thermodynamics, endothermic kinetics, presenting it promising way address plastic Africa. Despite African Union’s goal recycle waste, continent faces barriers achieving target, including infrastructural, economic, social difficulties. It crucial implement strategies for managing mitigate environmental degradation promote cleaner healthier living environment. Pyrolysis technology highlighted viable management, can convert valuable byproducts syngas. Case studies from countries like South Nigeria demonstrate scaling management issues while generating job opportunities. underscores need investment, regulatory support, public awareness overcome challenges unlock full Embracing method could lead economic benefits continent.

Language: Английский

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Laboratory-scale simulation study of pyrolysis process in a fixed-bed gasifier for municipal solid waste pellets: Effects of temperature distribution and residence time

Journal of Analytical and Applied Pyrolysis, Journal Year: 2024, Volume and Issue: unknown, P. 106832 - 106832

Published: Oct. 1, 2024

Language: Английский

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Fast Pyrolysis Product Analysis of Commercial Polyethylenes

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(16), P. 15543 - 15559

Published: July 25, 2024

The pyrolysis of eight commercial polyethylene grades in a fluidized bed reactor (FBR, Hamburger Verfahren) operating at 750 °C (residence time ∼3 s) is carried out to show that the gaseous and liquid product spectra are very similar. reaction temperature sole parameter major impact for outcome FBR between 700 800 °C. gives good yield ethylene (31 wt %) propylene (15 moderate amounts methane (11 %). Solid products (soots) hardly formed. A stochastic analysis shows molar linear alkane alkene with less than 4–5 carbon atoms (making up 75 % products) confidently described by geometric distributions Geom(1 – α). remaining 25 mainly aromatics 6 or more atoms. formation alkanes interpreted result from random chain scission probability α 0.82 n-alkyls, followed hydrogen abstraction: 1-alkenes competition β-scission 1,2-hydrogen shifts an 0.64 alkyl radicals. intermediate n-alkyls primary radicals key; weak bond scissions (at branching points) not relevant decomposition parameters dependent, giving access activation energies 47(4) kJ/mol 54(2) difference shift on interval 600 900 suggest directly formed transported away hot zone (surface ablation). same applied published data different alkenes present too.

Language: Английский

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Pyrolysis Characterization and Mechanism Studies of Different Structural Plastics: A Comparative Study at Optimal Temperatures

Energy, Journal Year: 2024, Volume and Issue: unknown, P. 133986 - 133986

Published: Nov. 1, 2024

Language: Английский

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Energy Generation from Plastic Composites: A Systematic Review of Sustainable Practices and Technologies

Circular Economy and Sustainability, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Language: Английский

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