Gas liquid contact system – Crescendo®

The liquid flows down along an inclined plate and generates by cavitation a slightly negative pressure in the downward direction, protruding openings that are present on the upper surface of this plate. The negative pressure causes the gas to pass from underneath the plate into the flow of liquid as long stretched bubbles. Those bubbles stay long enough in contact with the liquid to become saturated with vapour.

This patented method provides a very intensive gas/liquid contact, offering an optimal exchange of components at minimal energy input. Even waste energy e.g. from heating, cooling and ventilating may be put to good use.

The unique features of the system are, first of all, the very low negative pressure in the perforations, caused by the fast-flowing liquid film. This allows a small ventilator to push an enormous gas flow through the water film, with a very low supply pressure, creating an extreme large exchange surface between the gas and the liquid. Secondly, there will be no contamination/fouling of the plate surface, not at the bottom side (which will remain dry), and also not to the upper side, in which contamination is prevented by the high degree of turbulence across the entire plate surface. Crescendo® requires little maintenance.