Alkali-enhanced hydrothermal purification of plastic pyrolysis oils

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United States of America Patent

PATENT NO 11939531
APP PUB NO 20220235276A1
SERIAL NO

17613812

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Abstract

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A method is disclosed for preparing fuel components from waste pyrolysis oil. Exemplary embodiments include providing a waste pyrolysis oil having plastic pyrolysis oil and/or tyre pyrolysis oil, and impurities; purifying the waste pyrolysis oil by hydrothermal treatment with water or alkaline water; separating the hydrothermally treated waste pyrolysis oil from an aqueous phase; preparing a hydroprocessing feed from the hydrothermally treated waste pyrolysis oil; hydroprocessing the hydroprocessing feed catalytically with hydrogen to cause hydrogenation; and recovering a hydrocarbon fraction boiling in a liquid fuel range.

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Patent Owner(s)

Patent OwnerAddress
NESTE OYJKEILARANTA 21 ESPOO FI-02150

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Paasikallio, Ville Porvoo, FI 21 41
Pasanen, Jukka-Pekka Porvoo, FI 20 51
Toukoniitty, Blanka Porvoo, FI 13 50

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