WO2025078577A1 - Procédé de décontamination de compositions pétrochimiques obtenues à partir du recyclage chimique de matériaux polymères - Google Patents

Procédé de décontamination de compositions pétrochimiques obtenues à partir du recyclage chimique de matériaux polymères Download PDF

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Publication number
WO2025078577A1
WO2025078577A1 PCT/EP2024/078654 EP2024078654W WO2025078577A1 WO 2025078577 A1 WO2025078577 A1 WO 2025078577A1 EP 2024078654 W EP2024078654 W EP 2024078654W WO 2025078577 A1 WO2025078577 A1 WO 2025078577A1
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WO
WIPO (PCT)
Prior art keywords
process according
hydrocarbon
hydrocarbon composition
composition
adsorbent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2024/078654
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English (en)
Inventor
Fabrice Cuoq
Kae Shin WONG
Aaron Chi Akah
Rashed Aleisa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SABIC Global Technologies BV
Saudi Arabian Oil Co
Original Assignee
SABIC Global Technologies BV
Saudi Arabian Oil Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by SABIC Global Technologies BV, Saudi Arabian Oil Co filed Critical SABIC Global Technologies BV
Publication of WO2025078577A1 publication Critical patent/WO2025078577A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
    • C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
    • C10G53/04—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only including at least one extraction step
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
    • C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
    • C10G53/08—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only including at least one sorption step

Definitions

  • the present invention relates to a process for decontamination of petrochemical compositions.
  • Typical examples of such processes include light olefin and aromatics production processes.
  • Light olefins such as ethylene and propylene
  • aromatics such as benzene
  • aromatics such as benzene
  • cracking operations typically thermal or catalytic cracking operations.
  • hydrocarbon molecules that are present in raw materials streams which typically are of fossil, hydrocarbon nature, are subjected to such conditions that atomic bonds break, and smaller molecules are formed.
  • Due to the chemical reaction kinetics such processes typically lead to a product composition that comprises a desirably high quantity of light olefins and aromatics.
  • the product composition is commonly subjected to one or more separation operations, to obtain high-quality, high-purity chemical streams that can be processed into the desirable end product, for example into polymer materials.
  • a particular component that may be present in petrochemical feedstock compositions is chlorine.
  • petrochemical and refinery operations it is generally desired to process feed materials containing a particularly low content of chlorines.
  • hydrocarbon composition A may for example be a hydrocarbon-containing oil product obtained by decomposition of waste plastics.
  • the initial boiling point reflects the lowest temperature at which boiling of chemical compounds in a hydrocarbon oil mixture occurs, and therefore is an indicator for the temperature at which the most volatile compounds, typically the compounds of lowest molecular weight, start to boil, at atmospheric pressure.
  • the final boiling point reflects the highest temperature achievable in boiling of a hydrocarbon oil composition, and thereby indicates the temperature at which the compounds of highest boiling point, typically the compounds of highest molecular weight, will boil, again under atmospheric conditions.
  • the hydrocarbon composition A as used in the present invention has an initial boiling point of > 30°C, more preferably > 50°C. It is also preferred that the hydrocarbon composition A has a final boiling point of ⁇ 325°C, more preferably ⁇ 300°C, even more preferably of ⁇ 250°C, even more preferably of ⁇ 225°C, or even ⁇ 200°C.
  • suitable hydrocarbon compositions A may have an initial boiling point of > 30°C and a final boiling point of ⁇ 300°C, more preferably an initial boiling point of > 30°C and a final boiling point of ⁇ 250°C, even more preferably an initial boiling point of > 50°C and a final boiling point of ⁇ 200°C.
  • the hydrocarbon composition A that may be considered suitable for use in the present invention may for example comprise a quantity of n-paraffins, a quantity of iso- paraffins, a quantity of olefins, a quantity of naphthenes, and/or a quantity of aromatics.
  • the composition may for example comprise a quantity of n-paraffins, a quantity of iso-paraffins, a quantity of olefins, a quantity of naphthenes, and a quantity of aromatics.
  • n-paraffins that may be present in the composition A may for example include n-alkanes having 3 to 40 carbon atoms.
  • the isoparaffins that may be present in the composition A may for example have 3 to 40 carbon atoms.
  • the naphtenes that may be present in the composition A may for example have 3 to 40 carbon atoms.
  • the aromatics that may be present in the hydrocarbon composition A may for example have 6 to 40 carbon atoms.
  • the hydrocarbon composition A may for example comprise > 25.0 and ⁇ 95.0 wt% of n- paraffins, with regard to the total weight of the hydrocarbon composition A.
  • the hydrocarbon composition A comprises > 25.0 and ⁇ 80.0 wt% of n-paraffins, more preferably > 25.0 and ⁇ 70.0 wt%, even more preferably preferably > 25.0 and ⁇ 50.0 wt%.
  • the hydrocarbon composition A may for example comprise > 5.0 and ⁇ 20.0 wt% of napththenes, with regard to the total weight of the hydrocarbon composition A.
  • the hydrocarbon composition A comprises > 5.0 and ⁇ 15.0 wt% of naphthenes, more preferably > 7.5 wt% and ⁇ 15.0 wt%.
  • the hydrocarbon composition A may for example comprise > 5.0 and ⁇ 15.0 wt% of aromatics, with regard to the total weight of the hydrocarbon composition A.
  • the hydrocarbon composition A comprises > 5.0 and ⁇ 12.5 wt% of aromatics, more preferably > 7.5 wt% and ⁇ 12.5 wt%.
  • the hydrocarbon composition A may for example comprise:
  • the hydrocarbon composition A may comprise a quantity of compounds comprising nitrogen atoms.
  • the quantity of compounds comprising nitrogen atoms may be expressed as the atomic nitrogen content of the hydrocarbon composition A.
  • the hydrocarbon composition A may have an atomic nitrogen content of ⁇ 1600 ppm by weight, as determined in accordance with ASTM D5762 (2012), preferably ⁇ 1500 ppm, more preferably ⁇ 1400 ppm, even more preferably ⁇ 1300 ppm, even more preferably ⁇ 1200 ppm, or ⁇ 1100 ppm, or ⁇ 1000 ppm.
  • the hydrocarbon composition A may have an atomic nitrogen content of ⁇ 100 ppm by weight as determined in accordance with ASTM D4629 (2017).
  • the hydrocarbon composition A may comprise a quantity of compounds containing olefinic unsaturations.
  • An indication for the quantity of olefinic unsaturations is the bromine number of the hydrocarbon stream.
  • the bromine number indicates the quantity of bromine in g that reacts with 100 g of the hydrocarbon specimen when tested under the conditions of ASTM D1159-07 (2012).
  • the hydrocarbon composition A as used in the process of the present invention may have a bromine number of ⁇ 100, preferably ⁇ 95, more preferably ⁇ 90, even more preferably ⁇ 85.
  • the product C preferably comprises ⁇ 100 ppm, more preferably ⁇ 75 ppm, of atomic chlorine.
  • the hydrocarbon composition A may for example be a material stream that is obtained by treatment of a waste plastics feedstock.
  • hydrocarbon composition A may be obtained by processing a waste plastics stream in a pyrolysis unit.
  • the waste plastics feedstock may for example comprise > 90.0 wt% of polymeric material, with regard to the total weight of the waste plastics feedstock.
  • the waste plastics feedstock may for example comprise a quantity of polyamides.
  • the waste plastics feedstock may comprise ⁇ 20.0 wt% of polyamides, preferably ⁇ 15.0 wt%, more preferably ⁇ 10.0 wt%, even more preferably ⁇ 5.0 wt%, even further preferably
  • the waste plastics feedstock may in certain embodiments be free from polyamides.
  • the waste plastics feedstock may in certain embodiments be free from PVC.
  • the presented percentages of polyesters, polyamides and PVC in the waste plastics feedstock are to be understood to be percentages by weight of the total weight of polymeric material present in the waste plastics feedstock.
  • the waste plastic feedstock may further comprise a quantity of moisture, for example the waste plastics feedstock may contain up to 20.0 wt% of moisture, preferably up to 10.0 wt%, more preferably up to 5.0 wt%.
  • the adsorbent may for example have a BET surface area of > 100 and ⁇ 800 m 2 /g, preferably > 200 and ⁇ 600 m 2 /g.
  • the adsorbent may for example have an average pore diameter of > 0.3 and ⁇ 0.8 nm, preferably of > 0.5 and ⁇ 0.8 nm.
  • Step (ii) may, in certain embodiments, involve a first step of mixing the washed product B with the adsorbent, preferably for > 0.5 and ⁇ 10 hours, more preferably for > 2 and ⁇ 6 hours followed by a separation step, preferably by centrifugation, to remove the adsorbent and obtain the product C.
  • the step (ii) may be performed at a temperature of > 10°C and ⁇ 60°C, preferably > 10°C and ⁇ 40°C, more preferably > 15°C and ⁇ 30°C.
  • the washing step was performed by supplying, at room temperature, 100 ml of the plastic derived oil and 100 ml of deionized water to a separation funnel of appropriate size.
  • the funnel was subjected to shaking for 20 minutes to form an emulsion. Then the emulsion was allowed to settle for 30 minutes to allow phase separation.
  • the oil phase and the water phase were removed from the funnel separately, and subjected to characterisation.
  • the analysis of the obtained oil product revealed that 57.9 wt% of the chlorine was removed from the plastic derived oil as a result of the water washing step.
  • the plastic derived oil was subjected to an adsorption step. To a round-bottom flask, 30 ml of the water-washed oil and 1 g of adsorbent were added. The adsorption step was performed at room temperature. Multiple adsorbents were tested, as indicated in the table below:

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

La présente invention concerne un procédé de décontamination de compositions pétrochimiques, le procédé consistant à soumettre une composition hydrocarbonée (A) contenant des contaminants inorganiques et/ou polaires, les contaminants inorganiques et/ou polaires étant de préférence des contaminants contenant du chlore, à des étapes de : (i) traitement par lavage à l'eau, et (ii) traitement par adsorption. Un tel procédé permet la purification de compositions d'hydrocarbures telles que des produits d'huile de pyrolyse obtenus à partir du traitement de compositions de déchets plastiques, afin de rendre de telles compositions d'hydrocarbures aptes à être traitées par des opérations pétrochimiques et/ou de raffinage.
PCT/EP2024/078654 2023-10-13 2024-10-11 Procédé de décontamination de compositions pétrochimiques obtenues à partir du recyclage chimique de matériaux polymères Pending WO2025078577A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23203549.3 2023-10-13
EP23203549 2023-10-13

Publications (1)

Publication Number Publication Date
WO2025078577A1 true WO2025078577A1 (fr) 2025-04-17

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PCT/EP2024/078654 Pending WO2025078577A1 (fr) 2023-10-13 2024-10-11 Procédé de décontamination de compositions pétrochimiques obtenues à partir du recyclage chimique de matériaux polymères

Country Status (1)

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WO (1) WO2025078577A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022084433A1 (fr) * 2020-10-23 2022-04-28 Exxonmobil Chemical Patents Inc. Fluides hydrocarbonés
WO2022234225A1 (fr) * 2021-05-03 2022-11-10 Totalenergies Onetech Procede de purification de charge hydrocarbonee en presence d'un solvant et utilisation
US20230287282A1 (en) * 2020-04-07 2023-09-14 Totalenergies Onetech Belgium Purification of waste plastic based oil with a high temperature hydroprocessing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230287282A1 (en) * 2020-04-07 2023-09-14 Totalenergies Onetech Belgium Purification of waste plastic based oil with a high temperature hydroprocessing
WO2022084433A1 (fr) * 2020-10-23 2022-04-28 Exxonmobil Chemical Patents Inc. Fluides hydrocarbonés
WO2022234225A1 (fr) * 2021-05-03 2022-11-10 Totalenergies Onetech Procede de purification de charge hydrocarbonee en presence d'un solvant et utilisation

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