METHOD FOR UPGRADING LIQUEFIED WASTE PLASTIC

    公开(公告)号:FI20235609A1

    公开(公告)日:2024-12-01

    申请号:FI20235609

    申请日:2023-05-31

    Applicant: NESTE OYJ

    Abstract: The present invention relates to a method of upgrading liquefied waste plastic into petrochemical products and to a process plant suited to carry out this method. The method comprises a liquefied waste plastic-based feedstock, purifying and fractionating the liquefied waste plastic-based feedstock to obtain one or more distillate fractions and a purified residue fraction, hydrocracking the purified residue fraction, and finishing at least one of the distillate fractions and/or the hydrocracked product.

    METHOD FOR TREATMENT OF LIQUEFIED WASTE PLASTIC

    公开(公告)号:FI131100B1

    公开(公告)日:2024-09-30

    申请号:FI20236002

    申请日:2023-09-07

    Applicant: NESTE OYJ

    Abstract: The invention relates to an improved method for treating liquefied waste plastics including providing a volume of the liquefied waste plastics-based oil (A), subjecting the volume of LWP-based oil (A) to a heat treatment (1), phase separating (2) the resulting heat-treated mixture volume (C) into a first aqueous phase volume (D) and a first oil phase volume (E), isolating (2) the first aqueous phase volume (D), adjusting (3) the pH of the first aqueous phase volume (D) to pH 9.0 or below, and phase-separating (4) the pH adjusted volume (G) into at least a second aqueous phase volume (I) and a second oil phase volume (H).

    ALKALI-ENHANCED HYDROTHERMAL PURIFICATION OF PLASTIC PYROLYSIS OILS

    公开(公告)号:SG11202111709TA

    公开(公告)日:2021-12-30

    申请号:SG11202111709T

    申请日:2020-05-26

    Applicant: NESTE OYJ

    Abstract: The invention provides a method for preparing fuel components from waste pyrolysis oil, comprising: a) providing a waste pyrolysis oil, comprising as the major part plastic pyrolysis oil and/or tyre pyrolysis oil, and comprising impurities in the form of chlorine, nitrogen, sulphur, and optionally silicone or bromide; b) purifying the waste pyrolysis oil by subjecting it to a hydrothermal treatment with water or alkaline water; c) separating the hydrothermally treated waste pyrolysis oil from the aqueous phase; d) preparing a hydroprocessing feed from the hydrothermally treated waste pyrolysis oil, optionally in mixture with one or more feed(s) of oxygen- containing biological oils having impurities of chlorine and silicon; e) hydroprocessing the hydroprocessing feed catalytically with hydrogen to cause hydrogenation, and optionally one or more of hydrodeoxygenation, hydrodesulfurisation, hydrodenitrification, hydrodechlorination, hydrodearomatization, and hydroisomerisation; f) recovering a hydrocarbon fraction boiling in the liquid fuel range.

    ALKALI-ENHANCED HYDROTHERMAL PURIFICATION OF PLASTIC PYROLYSIS OILS

    公开(公告)号:CA3134555A1

    公开(公告)日:2020-12-03

    申请号:CA3134555

    申请日:2020-05-26

    Applicant: NESTE OYJ

    Abstract: The invention provides a method for preparing fuel components from waste pyrolysis oil, comprising: a) providing a waste pyrolysis oil, comprising as the major part plastic pyrolysis oil and/or tyre pyrolysis oil, and comprising impurities in the form of chlorine, nitrogen, sulphur, and optionally silicone or bromide; b) purifying the waste pyrolysis oil by subjecting it to a hydrothermal treatment with water or alkaline water; c) separating the hydrothermally treated waste pyrolysis oil from the aqueous phase; d) preparing a hydroprocessing feed from the hydrothermally treated waste pyrolysis oil, optionally in mixture with one or more feed(s) of oxygen- containing biological oils having impurities of chlorine and silicon; e) hydroprocessing the hydroprocessing feed catalytically with hydrogen to cause hydrogenation, and optionally one or more of hydrodeoxygenation, hydrodesulfurisation, hydrodenitrification, hydrodechlorination, hydrodearomatization, and hydroisomerisation; f) recovering a hydrocarbon fraction boiling in the liquid fuel range.

    Alkali-enhanced hydrothermal purification of plastic pyrolysis oils

    公开(公告)号:FI20195446A1

    公开(公告)日:2020-11-29

    申请号:FI20195446

    申请日:2019-05-28

    Applicant: NESTE OYJ

    Abstract: The invention provides a method for preparing fuel components from waste pyrolysis oil, comprising: a) providing a waste pyrolysis oil, comprising as the major part plastic pyrolysis oil and/or tyre pyrolysis oil, and comprising impurities in the form of chlorine, nitrogen, sulphur, and optionally silicone or bromide; b) purifying the waste pyrolysis oil by subjecting it to a hydrothermal treatment with water or alkaline water; c) separating the hydrothermally treated waste pyrolysis oil from the aqueous phase; d) preparing a hydroprocessing feed from the hydrothermally treated waste pyrolysis oil, optionally in mixture with one or more feed(s) of oxygencontaining biological oils having impurities of chlorine and silicon; e) hydroprocessing the hydroprocessing feed catalytically with hydrogen to cause hydrogenation, and optionally one or more of hydrodeoxygenation, hydrodesulfurisation, hydrodenitrification, hydrodechlorination, hydrodearomatization , and hydroisomerisation; f) recovering a hydrocarbon fraction boiling in the liquid fuel range.

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