Process and plant for cooling sulfuric acid

摘要

A process for cooling an acid that is withdrawn from an absorption apparatus of a sulfuric acid plant includes pumping the acid to be cooled from an acid pump tank and supplying the acid to a shell space of a heat exchanger. Water is supplied as a heat transport medium to heat transfer elements disposed in the shell space so as to at least partially convert, by heat transfer from the acid, the water to steam. The acid which was cooled in the heat exchanger is supplied back to the absorption apparatus. The water is separated from the steam in a steam drum. The separated water is recirculated to the heat exchanger using a pump.

主权项

1. A process for cooling an acid that is withdrawn from an absorption apparatus of a sulfuric acid plant, the method comprising:
pumping the acid to be cooled from an acid pump tank and supplying the acid to a shell space of a heat exchanger; supplying water as a heat transport medium to heat transfer elements disposed in the shell space so as to at least partially convert, by heat transfer from the acid, the water to steam; supplying the acid which was cooled in the heat exchanger back to the absorption apparatus; separating the water from the steam in a steam drum; recirculating the separated water to the heat exchanger using a pump; and simultaneously monitoring process water supply, loading of the plant and concentration of the acid so as to detect a leakage.