Method and device for gas cleaning or gas cooling

A device for contacting a gas with a finely divided liquid for at least one of a separation of particles, adsorption of gaseous pollutants, and cooling of the gas, comprising;

• an inlet for a gas flow,
• an outlet for treated gas,
• a contact section disposed between the inlet and the outlet through which the gas flows in a main flow direction and
• supply means disposed in the contact section for injecting finely divided liquid in the form of essentially umbrella-shaped shells or essentially linear curtains, the supply means being disposed in at least two planes substantially perpendicular to the main flow in an essentially regular lattice pattern, the supply means being adapted to supply a substantial portion of the finely divided liquid having a velocity component in a plane perpendicular to the main flow direction greater than a velocity component parallel to or contrary to the main flow direction and being positioned to inject finely divided liquid into the flow so that the gas is alternately concentrated and spread by an impulse action exerted by the liquid on the gas in directions perpendicular to the main flow direction of the gas,
• wherein an orthogonal distance between adjacent planes of supply means is sufficiently small so that no substantial equalisation of the gas flow takes place between planes, and
• wherein the supply means in adjacent planes are positioned so that supply means in a plane located downstream in the flow direction of the gas are located where the gas flow has been concentrated by the impulse action of liquid supplied in the plane located immediately upstream.