Patent ID: 6375921
Filing Date: 2002-04-23
Classification: B01J,C01B

Abstract:
A bubble column comprising a columnar vessel (1), arranged in a vertical manner, having:(a) a bottom part (3), a middle part (2) and a top part (4), wherein: (i) the bottom part comprises the gas phase inlet and liquid phase outlet; and (ii) the top part comprises the liquid phase inlet and the gas phase outlet; (b) one or more perforated trays (5) horizontally disposed in the middle part with a distribution of holes which is essentially uniform over the cross section of the column, wherein: (i) the cross-sectional area of each of the said holes is 0.003 to 3 mm2; (ii) the open area of trays formed by said holes is 3 to 20%; and (iii) liquid zones formed in the operating state above and below a tray communicate with each other via a passage (6) for the throughflow of liquid; and (c) devices for feeding and discharging a liquid phase (9, 10) and gas phase (11, 12), said devices being arranged for operating the bubble column with countercurrent flow.