Gas / Vapor Distributor in Metal and Plastic

An as homogeneous distribution as possible of the gas or vapor phase is also important for an effective mass transfer in mass transfer columns since otherwise the mass transfer efficiency will drop due to back mixing. A distribution system is to be provided for both in particularly small as well as in particularly large gas volume rates as well as with increasing column diameters, see the attached figure. Modern gas / vapor distribution systems have the task of achieving a phase distribution with a small pressure drop.

From dumped packings or structured packings the liquid generally drips into the bottom of the column. The lower section of the bed usually bears the greatest load, and thus an even distribution of the gas / vapor phase reduces the flooding phenomena and the entrainment of drops.

The gas / vapor inlets must be positioned sufficiently below the packings. In columns with a diameter of 1 m the distance should be 400 mm and with column diameters of between 1 m and 2 m a distance of approx. 700 mm is to be provided. In larger columns a distance of at least 1000 mm is suggested.

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