Reagent for NOx reduction
• With SNCR systems, urea is often the reducing agent chosen for safety reasons. However, it is less effective than ammonia, because urea needs to be converted to ammonia before the NOx reduction process.
• We supply either solid urea, typically for on-site dilution, or urea in solution with several concentrations.
There are disadvantages of using Urea as a reagent in NOx control
Urea / Urea Solution can be transported by :
Troubleshoot chipping issues related to the use of urea as a reducing agent in SNCR systems
Some urea SNCR systems require the addition of water to dilute the urea before injection. If urea is used with hard water, it can cause chipping problems, or even plugging the injection nozzles, which stops the operation of the system.
Yara has developed an anti-chipping NOxCare solution to eliminate problems on NOx control SNCR systems.
Yara is one of the largest Urea producers in the world, offering a unique Urea back-up supply. Our NOx control experts can provide you with technical support and advice to ensure that your SNCR Urea NOx control system is cost efficient and meets all the requirements needed.
Yara delivers the reagent of your choice from our unique network of plants offering a constant back-up in sourcing. We supply either solid Urea, typically for dilution on site, or Urea Solution in various concentrations.