Liquid-vapour contact columns

Details Liquid-vapour contact columns Liquid-vapour contact columns

B - Operations, Transporting

01

D

B01D 3/16 (2006.01) B01D 3/20 (2006.01)

Patent

CA 2082677

91B121/MW ABSTRACT LIQUID-VAPOUR CONTACT COLUMNS A liquid-vapour contact column includes an array of vertically spaced horizontal liquid-vapour contact trays having generally circumferential sides and arrangement of downcomers to conduct liquid from each tray in the array to the tray below. Each tray has gas passages to enable gas to pass into contact with the liquid. A weir 46 is disposed on the floor of at least one downcomer. Each side of the weir 46 is spaced from the corresponding side of the downcomer. This arrangement counteracts a tendency for liquid flowing along the floor of the downcomer to become detached from the sides of the downcomer, such detachment leading to maldistribution of liquid on the tray and hence to less efficient operation of the column.

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