Means ensuring contact between gasiform fluids and liquids

Abstract

Abstract <PICT:0919162/III/1> <PICT:0919162/III/2> <PICT:0919162/III/3> <PICT:0919162/III/4> Gases or vapours to be reacted with liquids are formed into a froth by bubbling or passage through a nozzle and the froth is caused to follow a sinuous path to promote self-destruction. The reaction of hydrogen sulphide with ferric salt solutions to form sulphur and ferrous salts is referred to. Froth forming liquids, e.g. alkyl aryl sulphonates, alkyl sulphates and the reaction products of a phenol and ethylene oxide may be added. The preferred liquid:gas ratio is 1:10. The apparatus shown in Fig. 5 comprises a cylindrical chamber divided into two compartments by a depending cylindrical partition. Gas and liquid are formed into a froth by means of nozzle 51 and after passing from the outer to the inner compartment, froth remaining is destroyed by froth breaker 55. This embodiment is suitable for use where the amount of liquid is small in relation to the gas since the liquid can be recirculated from the emulsion breaker through lines 56 and 59 and from the lower part of the chamber through line 60 and via pump 53 and line 52 to the nozzle together with quantities of fresh liquid, or liquid regenerated in 58, from the reservoir 54. Fig. 3 shows a similar chamber provided with a plurality of cylindrical partitions attached alternately to the upper and lower wall of the chamber. Fig. 4 shows a system comprising three chambers connected for countercurrently contacting the gas and liquid, the frothing device being in this case a bubbling arrangement. Fig. 1 (not shown) illustrates an annular bubbling device which extends round a cylindrical partition. Fig. 6 shows another system in which parallel streams of liquid pass through two chambers while the gas passes therethrough in series; this is useful where the amount of liquid is large in relation to the gas. Specification 741,068 is referred to.

Inventors

• 👤 Robert M Mercier

Bibliographic Details