Problem No. 10: High CO₂ content in liquid outlet of a high pressure CO₂ stripper in urea synthesis
Possible causes and solutions to the problem of high CO2 content in the liquid outlet of a high pressure SO2 stripper in a urea plant are discussed.
Category: Equipment
Problem No. 9: Unblocking pipelines after a urea plant shutdown
In several sections of a urea plant, pipelines can become easily blocked when temperatures become too low and during a shutdown of the plant blocking can occur if the right measures are not taken.
Problem No. 8: Urea prilling buckets
Prilling buckets are the oldest technology to form solid urea in a urea plant. This article looks at the design criteria for prilling buckets and reports on experiences with various designs.
Problem No. 6: Choking of urea fluid bed granulator nozzles
The nozzles used in urea fluid bed granulation form the most essential part of a fluid bed granulation plant. This discussion looks at the problem of nozzle choking, the causes and solutions.