Vorrichtung und Verfahren zur Umwandlung von Biogas in Biomethan durch Karbonatabsorptions- und -Desorptionsstufen

Details

Veröffentlichungs-Nr.

EP4782089

Anmeldetag

23. Januar 2025

Veröffentlichung

29. Juli 2026

Rechtsraum

EP

IPC

B01D53/14, B01D53/30, C10L3/10

Abstract

System and method for cleaning and upgrading biogas into biomethane in a sustainable way by means of absorption in a carbonates-bicarbonates solution and subsequent regeneration of said solution by desorption; wherein the resulting biomethane has a quality for injection into the natural gas grid. The overall process operates at atmospheric pressure and ambient temperature by increasing reaction rates and without applying neither heat nor pressure, or addition of any absorption promoter. Any known sulphide pre-cleaning step is not needed. The claimed system comprises four or more high mass transfer bubble columns with a counter-current configuration, filled with plastic media and operating at different pH ranges, two for absorption and two for CO<2> desorption by air stripping, in which the reaction rate in the carbonates-bicarbonates solution is increased. The invention also comprises the implementation of control strategies.

Anmelder

Firma

FCC Aqualia, S.A.

Land

🇪🇸 Spanien

Fachgebiete