| 摘要 |
1,013,776. Gas-liquid contact column. SULZER BROS. Ltd. March 19, 1964 [March 22, 1963], No. 11712/64. Heading B1R. A gas-liquid contact column 1 has a number of zones containing packing material of at least two different rates of pressure drop, 13a, 13b, the different zones being distributed so that a zig-zag flow is superimposed upon the longitudinal flow of the gas a vapour through the column. A preferred column has contiguous parallel flow channels formed by cells 4 with apertured walls 12 in packing unit 11 made of metal or plastics, with at least some of the packing material being in the form of corrugated contacting lamellae, the corrugations of adjacent lamellae extending in different directions and the corrugations of at least one of each adjacent pair of lamellae being inclined to the vertical column axis. The angle of vertical inclination or the height of the corrugations may be used to provide the different pressure drops required. Alternative packing is provided by Raschig rings, either with perforate and imperforate walls, or of different sizes. Specification 1,013,777 is referred to.
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