Abstract: A vapor horn device for use in an elongated, generally upright mass transfer and/or heat exchange column having an internal region comprises an elongated, generally arcuate wall arranged to be located within the internal region and disposed to extend around a longitudinal axis of the column. The arcuate wall includes an inlet area positioned for being contacted by a vapor or mixed phase stream entering the column and causing the stream to flow along an outer surface of the arcuate wall and generally around the axis. The device also includes a primary elongated vane extending outwardly from the outer surface of the arcuate wall. This primary vane has an inner end located adjacent the outer surface of the inner wall and an outer end disposed in spaced relationship relative to the outer surface of the wall.

Abstract: A mass transfer column includes a feed device that is used to de-entrain liquid and more uniformly distribute vapor across a horizontal cross section of the column after a vapor or mixed phase stream has been directed into the column through a radially oriented feed nozzle. The feed device includes an annular passageway formed in the spacing between the column shell and an inner wall spaced inwardly from the shell. A deflector with oppositely directed deflecting surfaces is positioned at an inlet from the feed nozzle to the annular passageway and splits the vapor or mixed phase stream into two roughly equal streams that flow in opposite circumferential directions in the annular passageway. At least one pair of turning vanes is spaced on opposite sides of the deflecting surfaces in the annular passageway to create subpassages through which the vapor or mixed phase stream flows.