SNCR Interest Group Webcast focuses on TDL ammonia monitors.

Eleven utility participants joined a recent webcast to discuss current selective noncatalytic reduction (SNCR) NOx reduction performance and operational issues. The current status of tunable diode laser continuous ammonia monitors was discussed, along with project plans for an upcoming deployment of a four-channel ammonia monitoring system for spatial resolution of ammonia slip from a SNCR system. Operational tests will examine the relationship between different SNCR injectors and each of the four line-of-sight ammonia slip measurement paths. The ultimate goal of the project will be to incorporate ammonia slip measurements within the SNCR process control logic. To facilitate technical information sharing, SNCR Interest Group participants are compiling a database of SNCR system characteristics. For more information, contact Rick Himes (rhimes@epri.com, 949-766-8470).