| 摘要 |
In a crossflow gas-liquid contact tower, liquid moves horizontally across a plurality of vertically spaced trays (2), and downwardly from tray-to-tray while gas flows up through openings in the trays to create a liquid-vapor mixture in an active bubble area. Each opening includes an aperture (16) in the plane of the tray, and a deflector (18) whi ch overlies the aperture to define lateral vapor outlet slots (22). The aperture (16) is wider at its upstream end than at its downstream end; and, the deflector (18) has upstream and downstream portions (18u, 18d) which extend across the ends of the aperture. The deflectors can be stationary or they can be vertically movable valves. The centers of the apertures (16) are spaced apart no more than about 3.0 inches in the longitudinal flow direction, and no more than about 2.0 inches transversely of the flow direction.
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