Apparatus for the decomposition of non-converted ammonium carbamate in urea solutions in a urea synthesis process

摘要

An apparatus used for the decomposition of non-converted ammonium carbamate in a supplied urea solution in a urea stripping synthesis section. The apparatus comprises a number of heat exchanger tubes between a top chamber and a bottom chamber, a liquid distributor mounted on each heat exchanger tube and a gas/liquid separator together with a perforated basket at the centre of the top chamber.

主权项

1. An apparatus for the decomposition of ammonium carbamate in a urea synthesis section of a urea stripping plant comprising heat exchanger tubes between a top chamber and a bottom chamber characterized in that the top chamber comprises a gas/liquid separator and the heat exchanger tubes are provided with liquid distributors,
the apparatus further comprising a perforated liquid distribution basket at the centre of the top chamber of the apparatus, wherein the heat exchanger tubes and liquid distributors are external to the liquid distribution basket.