CEMS for Measurement of Ammonia, SO3 and Low Level NOx will be the Hot Topic on Oct. 22, 2009
Although ammonia and SO3 are not criteria pollutants and in most cases their emissions do not need to be reported, accurate and reliable continuous measurement of these constituents in flue gas is essential to achieving optimum operation of air pollution control (APC) equipment. Maintaining optimum operation of APC equipment will minimize operating and maintenance costs (primarily reagent consumption) while insuring that emissions limits are consistently achieved. Accurate continuous measurement of NOx, a criteria pollutant, at the low levels in typical current permits however is critical to demonstrating compliance with permitted emission limits and can also generate income if NOx credits are achieved and sold. However, obtaining reliable, representative and accurate measurements of these gases is under the best circumstances difficult. In situ measurement is thought to be the better choice over the commonly used extractive sampling systems but there are many problems associated with in situ instrumentation.
The following speakers will address the advantages and disadvantages of each method for the measurement of ammonia, SO3 and low level NOx, the advances that have been made to obtain accurate, representative measurements, the performance of available instrumentation and the costs involved both for equipment installation, operation and maintenance.
Rick Himes, Senior Project Manager in the Boiler Performance and NOx Control programs at EPRI and Chuck Dene, Senior Project Manager for the Continuous Emission Monitoring and Integrated Emissions Control Technology programs at EPRI will discuss the EPRI related research regarding the measurement of ammonia, SO3, and low level NOx emissions and provide a brief status report on continuous ammonia and SO3 measurements on coal-fired boilers.
Ken Nowak, Environmental Energy Services, Inc. (EES) will discuss SO3 and NH3 SSL analyzers that EES has been using for several years - the continuous online measurement of SO3 and NH3 concentrations utilizing well accepted wet chemistry principals. The analyzers are portable allowing for multi-plane testing around scrubbers, precips, air heaters and SCRs. They allow for on-site optimization and continuous mapping of fuel additive programs and APC equipment. Both analyzers correlate well with the EPA accepted test methods.
Tom McKarns, Principal, ECO Physics, Inc. will discuss the pros and cons of extractive and dilution based systems for monitoring ammonia slip.
Ken Greaves, National Sales Manager, CEMTEK Environmental Inc. will describe the implementation of direct NH3 measurement using Tunable Diode Laser system on Post Combustion NOx Reduction Systems. With the addition of SCR or SNCR post combustion NOx Reduction Systems, utilities are becoming more reliant on Ammonia Slip Monitoring. It is an important tool in the effort to address the uncertainty of the NOx reduction system operation. Also there may be a requirement from regulatory agencies to provide information proving compliance with permit operating conditions. This presentation looks at some operational experience from the use of fast response TDL monitors for ammonia slip.
Dan Kietzer, Environmental Market Manager, SICK MAIHAK, Inc., Process Automation Division will discuss the Sick Maihak in situ solution for the measurement of NH3 and low level NOx with a brief mention of their new extractive (TDL and UV) technology.
Bernard (Ben) Breen, Ph.D., President, Breen Energy Solutions
To register for the “Hot Topic Hour” on Thursday, October 22, 2009 at 10:00 a.m. CDT (Chicago time), click on: http://www.mcilvainecompany.com/brochures/FGDnetoppbroch/Default1.htm .
Bob McIlvaine
President
847 784 0012 ext 112
rmcilvaine@mcilvainecompany.com