Emission Control ServicesOur combustion expertise can help maximize the effectiveness of your selective catalytic reduction (SCR) and selective noncatalytic reduction (SNCR) systems. In SCR, careful design and operation, such as reagent dosage control and good mixing, are necessary to keep NH3 emissions to a concentration of a few ppm. In SNCR, a reducing agent (typically NH3 or urea) is injected into the furnace above the combustion zone, where it reacts with NOx. Critical factors in applying SNCR are sufficient residence time in the appropriate temperature range and uniform distribution and mixing of the reducing agent across the full furnace cross section. Let us help improve the performance of your system through comprehensive analysis and monitoring. Mercury Removal and TestingManaging mercury emissions requires fine control of combustion conditions and coal properties. At GE, we are developing a method of controlling mercury through optimization of combustion conditions and coal composition to increase mercury removal with existing particulate control devices. Pilot and field testing has demonstrated that optimization of combustion conditions to form reactive fly ash improved the efficiency of NOx reduction and could result in significantly increased mercury removal for combustion systems equipped with a baghouse or ESP. We have also developed advanced techniques to address the challenges faced in mercury testing, including test method interferences and biases, low concentrations and detectable limits, test locations, sample recovery and preparation, sample contamination and clean, leak-free equipment. We also have substantial experience with many of the emerging continuous emission mercury monitors. We have performed numerous mercury tests at many locations around the world, and we have a team of trained personnel and state-of-the-art equipment ready to support your mercury testing needs. |
Download More InformationFor More InformationCall: (800) 821-2222 GE |