2022 08 Baboo Operation and Troubleshooting Saipem HP and MP section
In M/S. Saipem urea process the High Pressure synthesis section operation is very typical with respect to HP stripper and Reactor N/C ratio, H/C ratio and conversion of the reactor. The Medium Pressure section also is very typical from operation point of view with respect to the level of Medium Pressure absorber, which is fluctuating frequently when the urea plant starts up / shuts down or at any process disturbances / upset. This Technical Paper intends how to tackle theses type of problems plus will discuss more in detail the MP absorber level measurement and why the level is so important? Why density variates during start up / shut down or any upset of the process by any reason. Why the level transmitter of MP absorber is showing erratic level? How to prevent CO2 carry over to the ammonia receiver via the ammonia condenser. Can we replace the DP type transmitter with radar type in the HP stripper as well as MP absorber?