Process and apparatus to establish contact between liquid and va

Details Process and apparatus to establish contact between liquid and va Process and apparatus to establish contact between liquid and va

1991-06-14

1992-01-14

Miles, Tim

Gas and liquid contact apparatus

Contact devices

Wet baffle

2611143, B01F 304

Patent

active

050808370

ABSTRACT:
The invention relates to a process and apparatus to establish contact between liquid and vapour or gas on tray used in distillation and/or absorption columns. According to the process the liquid is accelerated upon arriving on the tray (1) perforated with holes (6) to such extent, that its velocity exceeds the velocity of the vapour or gas bubbles ascending from the liquid upon the buoyant effect. Then this accelerated flow rate is impacted with the downflow weir (9) and/or with the induction of vapour and/or gas jets having a component, oriented towards the interior of the tray (1), and a lubricant flow rate of greater layer thickness (h.sub.2) slowed down below the earlier mentioned limit velocity is produced. No bubbles separate from the accelerated flow in the accelerating zone (1) of the tray, because they are entained by the liquid. On the other hand, the vapour or gas bubbles delivered and passing through the holes of the tray (1), leave the degasifying zone 11, where the flow is turbulent. Inclined axial (y) eyes with holes (3), or slot (60) on the tray above the one in question, and/or slipway (8) can be used for liquid acceleration.

REFERENCES:
patent: 3282576 (1966-11-01), Bruckert et al.
patent: 3550916 (1970-12-01), Hoppe et al.
patent: 4301098 (1981-11-01), Mix
patent: 4499035 (1985-02-01), Kirkpatrick et al.

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