| 摘要 |
922,015. Contacting a gas with a liquid. F. L. YERZLEY. July 7, 1960 [July 7, 1959], No. 23756/60. Class 55 (2). In a method of contacting a gas with a liquid the gas is passed upwardly and the liquid downwardly through a bed of discrete aggregate particles and the area of the bottom surface of the bed exposed to gas flow is varied such that the bed is in use floded with liquid. The aggregate is supported on a foraminous plate and the desired portion of the surface area thereof may be closed to the flow of gas by transverse baffles or by suitably arranged plates. The support shown in Fig. 7 comprises a foraminous screen 20A, stationary sector-shaped strips 49 and sector-shaped strips 48 rotatably mounted on a shaft 50 rotatable from a position outside the chamber containing the bed of aggregate. In a modification shown in Fig. 9 elements 54 secured to rotatable rods 56 can be moved to vary the lipped area of a foraminous screen 52. Two or more beds of aggregate may be arranged one above the other and the gas and/or liquid flowing from one bed may be caused to move laterally before passing through a second bed. The aggregate may be crushed stone or marble chips and the beds 6 inches high.
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