Gas-liquid contact column and method using a combination of trays and packings
AssigneesIfp Energies Nouvelles, Total SA
InventorsBénédicte Chommeloux, Viep Hoang Dinh, Ludovic Raynal
Life of this patent
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Abstract
The gas-liquid contact column comprises at least an upper tray 10 and a lower tray 10, as well as a downcomer 2 for sending the liquid from the upper tray to the lower tray. The trays comprise gas ports. A packing 11 is arranged between the upper tray and the lower tray. The upper tray comprises means 12 for withdrawing liquid from the upper tray, the liquid withdrawn being distributed over the packing. The gas-liquid contact column is particularly well suited for absorption of the CO2 and of the H2S contained in a natural gas or in a syngas, and for capture of the CO2 contained in combustion fumes.
Claims18
A gas-liquid contact column comprising at least an upper tray and a lower tray, a downcomer for sending the liquid from the upper tray to lower tray, the trays comprising gas ports, characterized in that a packing is arranged between the upper tray and the lower tray, and the upper tray comprises means for withdrawing the liquid from the upper tray, the liquid withdrawn being distributed over the packing.
A gas-liquid contact method comprising:
- feeding a gas into the bottom of a column comprising at least an upper tray and a lower tray,
- feeding a liquid into the top of the column,
- sending a first part of the liquid from the upper tray to the lower tray through a downcomer,
- characterized in that the method further comprises:
- arranging a packing between the upper tray and the lower tray,
- collecting a second part of the liquid from the upper tray using withdrawal means, and
- distributing, through said withdrawal means, said second part of the liquid over the packing so as to contact the gas circulating in the packing with said second part of the liquid.
A gas-liquid contact column comprising:
- a plurality of trays comprising gas ports;
- a downcomer for sending a liquid from an upper tray of the plurality of trays to a lower tray of the plurality of trays;
- a packing disposed between the upper tray of the plurality of trays and the lower tray of the plurality of trays;
- and
- at least one liquid redistribution pathway disposed through the upper tray of the plurality of trays, the at least one liquid redistribution pathway for withdrawing the liquid from the upper tray of the plurality of trays and distributing the withdrawn liquid over the packing.
Dependencies are inferred from the claim text.