Verfahren und Anlage zur Herstellung eines Syntheserohgases oder Wasserstoff

Details

Veröffentlichungs-Nr.

EP4748785

Anmeldetag

20. November 2024

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

C01B3/36

Abstract

The present invention relates to a process or plant (1) for the production of a raw synthesis gas (10) or of a hydrogen-containing product (20).Said process comprises the following steps: (I) provision of a hydrocarbon feedstock (2) comprising one or more heavy hydrocarbon(s) in an overall amount comprised from 5% to 70% molar; said one or more heavy hydrocarbon(s) being aliphatic and/or aromatic hydrocarbon(s), or mixtures of aliphatic and/or aromatic hydrocarbons, having a number of carbon atoms comprised from 2 to 30; (II) optional pre-treatment (41) of said hydrocarbon feedstock (2) by hydrogenation of any unsaturated heavy hydrocarbon(s) and/or by purification of any catalyst poison contained in said hydrocarbon feedstock (2) to obtain a pre-treated hydrocarbon feedstock (45); (III) adjustment of a steam to carbon (S/C) ratio of said hydrocarbon feedstock (2) of step (I) to a S/C ratio comprised from 1 to 3 to obtain a steam-adjusted feedstock (4); (IV) pre-reforming of the steam-adjusted feedstock (4) of step (II) to obtain a pre-reformed stream (6, 6', 6") containing methane produced by reforming of said heavy hydrocarbon(s); (V) adjustment of a steam to carbon (S/C) ratio of said pre-reformed stream (6, 6', 6") of step (III) to below 1 to obtain a steam-adjusted stream (7); (VI) partial oxidation (POx) of the steam-adjusted stream (7) of step (IV) in presence of pure oxygen or oxygen-enriched air (22) to obtain said raw synthesis gas (10); (VII) optionally posttreatment (11, 12) and purification (13) of the raw synthesis gas (10) of step (VI) to obtain said hydrogen-containing product (20).

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Firma

CASALE SA

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