Patent · US Active

Method and device for reducing the carbon dioxide concentration in air

US7601202B2 · kind B2 · utility

6Cited by

17References

17Claims

0Family size

Assignee

Blue Membranes GmbH · DE

Inventors

Andreas Noack · Friedrichstadt, DE
Jurgen Kunstmann · Bad Soden, DE
Christian Gnabs
Norman Bischofberger · Guntersblum, DE
Norbert Paul · Altötting, DE
Jorg Rathenow · Berlin, DE

Key dates

Filing date	Jul 7, 2005
Grant date	Oct 13, 2009
Priority date	—
Expiry date	Sep 13, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02C20/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a method for reducing the carbon dioxide concentration in air of a closed or partially closed unit of space. The inventive method may comprise the steps of removing an air flow from the unit of space, guiding the air flow in a membrane system that may contain at least one membrane module having a CO2/O2 selectivity of greater than 2, removing the carbon dioxide permeated through the membrane, and returning the air flow that has been depleted of carbon dioxide in the membrane system to the unit of space. The inventive method may be optionally combined with an oxygen enrichment method. The invention also relates to corresponding devices for carrying out the inventive method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.