Gas Absorption Column Specification: Floor mounted packed column gas absorption unit using a 75mm diameter, 1.4m long clear acrylic column. The column contains 7 litres of 10 x 10mm glass Raschig r...
The packed absorption column is made up of two 75mm diameter clear acrylic sections joined end to end and installed vertically on a mild steel floor standing framework. The column is filled with 10mm x 10mm glass Raschig rings, which are representative of the type of packing used in gas absorption. Liquid for the process is stored in a 50.0 litre rectangular feed tank and a centrifugal pump is used to deliver the liquid to the top of the column where it falls through the packing and returns to the tank. A variable area flow meter in the recirculation line gives a direct reading of flow rate.
The gas to be absorbed is normally carbon dioxide and would be taken from a pressure cylinder (not supplied), standing adjacent to the column. This gas passes through a calibrated variable area flow meter and is mixed with an air stream also of known flow rate from a rotary compressor positioned in the framework. The ratio of gas to air in the mixture entering the column is therefore known and is easily varied. Entering at the base of the column, the gas mixture rises up through the packed bed and is counter-currently contracted with the liquid flowing down the column.
The packed absorption column is made up of two 75mm diameter clear acrylic sections joined end to end and installed vertically on a mild steel floor standing framework. The column is filled with 10mm x 10mm glass Raschig rings, which are representative of the type of packing used in gas absorption. Liquid for the process is stored in a 50.0 litre rectangular feed tank and a centrifugal pump is used to deliver the liquid to the top of the column where it falls through the packing and returns to the tank. A variable area flow meter in the recirculation line gives a direct reading of flow rate.
The gas to be absorbed is normally carbon dioxide and would be taken from a pressure cylinder (not supplied), standing adjacent to the column. This gas passes through a calibrated variable area flow meter and is mixed with an air stream also of known flow rate from a rotary compressor positioned in the framework. The ratio of gas to air in the mixture entering the column is therefore known and is easily varied. Entering at the base of the column, the gas mixture rises up through the packed bed and is counter-currently contracted with the liquid flowing down the column.
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