Membrane module to remove gaseous substances from a gas stream

摘要

A membrane module is provided which serves to remove gaseous substances from a gas stream and which consists of a plurality of plane membrane pockets consisting of a gas-permeable, liquidproof material. The pockets are arranged in parallel to each other and in parallel to the flow direction of the gas stream. The membrane pockets contain a liquid reaction mixture or a suspension of microorganisms which react with certain constituents of the gas stream which passes the pockets. An essential part of the pockets is a circumferential frame which is connected with both sides of the membrane material. The frame is provided with supply bore holes and drainage bore holes which are connected with the interior of the pocket. When the frames are stacked on each other, these bore holes are positioned on top of each other thus forming supply and drainage channels through which the reaction mixture or suspension in the rockets can be renewed and discharged. The membrane module forms a compact unit consisting of simple components, is easy to assemble and is very versatile.