Erhöhung der Methanausbeute durch Integration von Gasveredelung und Produktion von Flüssig-CO2 mit Biologischer Methanisierung

Details

Veröffentlichungs-Nr.

EP4644512

Aktenzeichen

EP25173424

Anmeldetag

29. April 2025

Veröffentlichung

11. März 2026

Erteilung

11. März 2026

Rechtsraum

EP

IPC

C10L3/08C10L3/10B01D53/22C12M1/36C12M1/107C12M1/00C12P5/02

Abstract

There is provided a method, assemblies and a gas flow regulation system using a methane-rich gaseous fluid and liquefied carbon dioxide from a carbon dioxide-comprising input gas stream. In this process, the input gas stream is first directed through a gas separation unit, which separates the gas into a methane-rich fluid and a stream enriched in carbon dioxide and/or hydrogen. The carbon dioxide and/or hydrogen-enriched stream is then processed in a CO<2> liquefaction assembly, and at least a portion of it is subsequently combined with hydrogen-preferably in a superstoichiometric H<2>:CO<2> ratio. This mixture feeds into a bio-methanation reactor, where methane is synthesized through the action of methanogenic microorganisms. The resulting methane-rich gaseous fluid from the reactor is recycled back to the gas separation unit for mixing with the initial input gas stream, creating a closed-loop process that eliminates the emission of CO<2>, CH<4>, or H<2> into the environment.

Anmelder

Firma

iLNG B.V.

Land

🇳🇱 Niederlande

Fachgebiete