IMPROVED REACTOR FOR THE SYNTHESIS OF UREA

摘要

A reactor for the synthesis of urea from ammonia and carbon dioxide at elevated temperature and pressure is provided with perforated reactor trays in which at least a pair of spaced part perforated reactor trays each have at least o ne opening at least a distance closer towards the periphery than the center, such as on or near the edge of a perforated reactor tray, and each of such pair perforated reac tor trays is provided with a tube with a height of 50-500 mm located on and depending froman underside, e.g. bottom side in a column reactor, of each of such pair perforated reactor tray. The tubes extend to no more than 1/3 of the distance between t wo adjacent reactor trays.