Oxy-hydrogen, solar and wind assisted hydrogen (H2) recovery from municipal plastic waste (MPW) and saltwater electrolysis for better environmental systems and ocean cleanup.
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ONWUEMEZIE, Linus and GOHARI DARABKHANI, Hamidreza (2024) Oxy-hydrogen, solar and wind assisted hydrogen (H2) recovery from municipal plastic waste (MPW) and saltwater electrolysis for better environmental systems and ocean cleanup. Energy, 301. p. 131601. ISSN 03605442
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Abstract or description
The pyrolysis of plastic waste and the electrolysis of saltwater is a promising route to carbon neutrality in ocean cleanup and plastic waste management. Therefore, a solar and wind assisted H_2-fuelled fast pyrolysis of MPW (municipal plastic waste) and electrolysis of desalinated saline were developed. The combined system uses an oxy-hydrogen furnace for thermal decomposition of MPW feed, CO_2 as an inert reaction medium and both solar and wind energy systems to operate the electrical units. The deionised H_2 O feed to the electrolyser cell was produced from saltwater using the recovered heat from the fast pyrolyser unit. The process CO_2 was captured and reused for soil improvement as current waste-to-energy routes of MPW recycling emit 695850 tonnes of CO_2. 2.65kg/hr_(H_2 ) fuel in an O_2 environment was utilised to meet the decomposer operating temperature and heat duty which is approximately 29% of the produced H_2. Instability associated with bio-oil was prevented by using fast pyrolysis which release more volatiles. Compared to the related studies, this investigated work achieved the highest gas and carbon yields. Thermal NO < 0.1 ppm was recorded. The developed system is expected to reach ≥ 70% energy efficiency and a sales price of < $3.89/kg_(H_2 ).
| Item Type: | Article |
|---|---|
| Faculty: | School of Digital, Technologies and Arts > Engineering |
| Depositing User: | Hamidreza GOHARI DARABKHANI |
| Date Deposited: | 23 May 2024 10:58 |
| Last Modified: | 23 May 2024 11:01 |
| Related URLs: | |
| URI: | https://eprints.staffs.ac.uk/id/eprint/8283 |
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