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.
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机译：本发明涉及一种用于降低封闭的或部分封闭的空间单元在空气中的二氧化碳浓度的方法。本发明的方法可以包括以下步骤：从空间单元中去除空气流;在膜系统中引导空气流，该膜系统可以包含至少一个CO 2 / O 2选择性大于2的膜组件;去除渗透的二氧化碳。通过膜，并将膜系统中已耗尽二氧化碳的气流返回到空间单位。本发明的方法可以任选地与氧气富集方法组合。本发明还涉及用于执行本发明方法的相应装置。
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