Gas-distributing tray for the bottom of a gas/liquid contact column comprising a zone for collecting liquid partially overlapped by gas chimneys

The invention relates to a gas-distributing tray (20) for a column for exchange of heat and/or of material between a gas and a liquid, comprising several protruding chimneys (80) which are substantially parallelepipedal and parallel to one another over a portion (21) of the upper face of the tray for the exclusive passage of the gas (g) through the tray and a zone for collecting the liquid (90) comprising two diametrically opposite weirs (91, 92) for collecting the said liquid (I) on the said tray. The chimneys each comprise an element for distribution of the gas (82) partially overlapping the zone for collecting the said liquid. The invention also relates to an exchange column comprising such a distributing tray and to the use of such a column. 80 -0 x