Advantages of the Urea 2000plus technology
- Savings in investment costs due to the reduction in size and – for the pool reactor concept – also the number of high pressure items
- Operational advantages:
- more stable level / pressure control
- less sensitivity to changes in the load or the N/C ratio
- fast capacity change of the plant due to self-regulating heat transfer characteristics
- Reduced construction height, resulting in reduced construction costs
- Improved heat transfer leading to reduced heat exchanger area
New features in recent plants using Urea 2000plus technology
- The high pressure section of recently-built urea plants are made of Safurex, a duplex steel specially developed for the Stamicarbon urea process by Sandvik, Sweden. This steel offers excellent corrosion resistance and high toughness and permits a reduction in the amount of added passivation air.
- For plants with state-of-the-art capacities Uhde applies Flowserve centrifugal pumps in ammonia and carbamate high pressure service. These pumps were newly introduced for this application and lived up to expectations in the Qafco 4 fertilizer plant. They proved to be highly reliable and require minimum maintenance.
Common highlights for all CO2 stripping processes
- Low energy consumption
- High process efficiency leading to low raw material consumption figures
- High on-stream times (reliability)
- Low corrosion rates
- High safety standards
- Low emissions
- Simple operation
- Easy maintenance