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AssigneeBASF SE
InventorsMathias HAAKE, Mathias FEYEN, Jochen WAGNER, Aleksandra Martyna GAJDA, Monica HAAG, Felix HUELSMANN
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The present invention concerns pyrolysis oils, mixtures and blends of pyrolysis oils comprising at least one catalyst poisoning suppressant, wherein the catalyst poisoning suppressant is selected from amphiphilic compounds, the amphiphilic compounds comprising at least one nonpolar residue selected from C6 to C26 alkyl and/or alkylene and at least one polar residue, the at least one polar residue comprising at least one nitrogen atom. The invention further con-cerns a method for suppressing catalyst poisoning and/or fouling during thermal processes and the use of catalyst poisoning suppressants selected from amphiphilic compounds, the amphiphilic compounds comprising at least one nonpolar residue selected from C6 to C26 alkyl and/or alkylene and at least one polar residue, the at least one polar residue comprising at least one nitrogen or oxygen atom. The poisoning of heterogeneous catalysts and/or fouling during thermal processes used in the purification, upgrading and/or conversion of pyrolysis oils derived from plastic waste, rubber materials, and mixtures/blends of such pyrolysis oils is reduced in the presence of at least one catalyst poisoning suppressant.
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Pyrolysis oil, mixture of at least two pyrolysis oils or blend comprising at least one pyrolysis oil, containing at least one catalyst poisoning suppressant selected from amphiphilic compounds, the amphiphilic compounds comprising at least one nonpolar residue selected from C6 to C26 alkyl and/or alkylene and at least one polar residue, the at least one polar residue comprising at least one nitrogen atom.
Method for suppressing catalyst poisoning for upgrading of and/or fouling during a thermal process for converting of a pyrolysis oil, a mixture of at least two pyrolysis oils and a blend comprising at least one pyrolysis oil, comprising the steps
Use of at least one additive selected from amphiphilic compounds comprising at least one nonpolar residue selected from C6 to C26 alkyl and/or alkylene and at least one polar residue comprising at least one heteroatom selected from the group consisting of oxygen and nitrogen as a catalyst poisoning suppressant in a pyrolysis oil, a mixture of at least two pyrolysis oils or a blend comprising at least one pyrolysis oil to suppress enrichment of a catalyst poison selected from the group comprising Fe2+ ions, Fe3+ ions, Ni2+ ions and compounds of said metal ions in said pyrolysis oil, mixture of at least two pyrolysis oils or a blend comprising at least one pyrolysis oil.
Dependencies are inferred from the claim text.