Method and device for delivering hot, aggressive media

摘要

Process for carrying out a chemical reaction between gaseous educts, which are reacted in a phase contact assembly (1) in the presence of a catalytically active, corrosive liq., is novel in that the corrosive liq. is supplied (supply cycle) hydropneumatically and intermittently from a sump vessel (4) connected to the bottom of the phase contact assembly (1) to a reserve vessel (9) connected to the upper part of the phase contact assembly (1). The corrosive liq. drains from the reserve vessel (9) through the phase contact assembly (1) and through a connecting pipe (11) at its lower end and then collects in the sump vessel (4) (drain cycle). Also claimed is the appts. for carrying out the above process comprising a phase contact assembly (1) with supply lines for the gaseous educt and the corrosive liq. as well as lines for the gaseous prod. and liq. formed in the phase contact assembly (1). The appts. is novel in that: (a) the line for the liq. goes to a sump vessel (4) located underneath the phase contact assembly (1) via a connecting pipe (11); (b) the supply line for the liq. is connected to a reserve vessel (9) above the phase contact assembly (1); (c) a compressor (2) is arranged before the sump vessel (4) for supplying and compressing of the gaseous educt; (d) the sump vessel (4) is in gaseous connection, via a gas conduit (7) having a regulating valve (8), to the phase contact assembly (1) and in liq. connection, via a rising conduit (15), to the reserve vessel (9); (e) the rising conduit (15) has an immersion tube (14) immersed in the liq. in the sump vessel (4); and (f) the reserve vessel (9) or sump vessel (4) has a level indicator (12), which, on reaching a first limit, closes the regulating valve (8) in gas conduit (7) and, on reaching a second limit, opens it again.