Patent ID: 8109489

Claim:
A method for contacting gases and liquid droplets for mass and/or heat transfer in a spray tower in which liquid is injected at a number of levels in counterflow to the gas, the gas being fed through precisely two separate gas ducts, each of the gas ducts opening into an inlet opening in the shell of the spray tower, wherein the flow direction of the gas at each of the inlet openings points into the internal region of the spray tower, which has a diameter of greater than or equal to 12 m, such that the respective midpoints of the precisely two gas streams from the two separate gas ducts intersect in their extension inside the spray tower, at a point of intersection in a region between and including a first end at the center of the spray tower and a second end at half the spray tower radius downstream of the center of the spray tower, the angle between the axes of symmetry of the gas ducts being greater than or equal to 45° and less than or equal to 120°.