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This paper refers on the hydraulic and mass-transfer characteristics of several high capacity structured packings Raschig Super-Pak (RSP250Y, RSP350Y, RSP500Y) under absorption conditions. Measurements were performed in column with inner diameter 0.15 m. The comparison with data published in Rejl et al. (2015) for structured packing Raschig Super-Pak 250Y performed in column with inner diameter 0.29 m allows unique assessment of column diameter effect on hydraulic and mass-transfer characteristic of packings. Such study should provide an answer whether is it possible to acquire or under which experimental conditions obtain a reliable hydraulic and mass-transfer characteristics of packing on the columns, from industrial point of view, with small diameter. Obtained characteristics on packings with three different geometric areas enable the evaluation of geometric area effect on the hydraulic and mass-transfer characteristics.