Log in

Log in

  • VECOM: Global Expert in Chemical Cleaning

    VECOM: Global Expert in Chemical Cleaning

  • FLUITEC Measure. Consult. Treat.

    FLUITEC Measure. Consult. Treat.

  • GEXCON: World-leading Safety Experts

    GEXCON: World-leading Safety Experts

  • GRANDPERSPECTIVE: We make visible the invisible hazard

    GRANDPERSPECTIVE: We make visible the invisible hazard

My UreaKnowHow

Statistics

Members:
UreaKnowHow.com: 6800+
UreaKnowHow.com & UreaNet.cn: 12800+
AmmoniaKnowHow.com: 900+
 
Topics: 1900+
Posts: 9400+
Average posts per topic: 5+
Average posts per day: 2-3
 
Libraries:
Photos: 1150+
Videos: 270+
 
Revamp Guides: 
 
 

Safety Information

Total:
- Safety Risks in Urea Plants: 200+
- Safety Risks in Ammonia Plants: 1200+
 
Specific:
- Ammonia Feed Piping Risks: 10+
- Risks during Turnarounds: 10+
For our complete overview of Safety Risks, Incidents and Near Misses, check out FIORDA

This invention is valid for a Total recycle urea plant. It describes an improved recirculation section.
After a rectifying step where pure ammonia and carbamate liquid is recycled to the reactor the urea solution still contains some ammonia and carbon dioxide. This invention suggests to further concentrate the urea solution by means of a carrier gas, which can be ammonia/carbon dioxide mixture of pure carbon dioxide gas. After this concentrator the urea solution is cooled and urea crystals are formed.