- Service & Support
- Mercury Applications
- Expert’s Corner
Standard Emission Source HgCEM Configuration (Utility, Industrial, Cement)
The Tekran® 3300Xi HgCEM was designed as an integrated system for continuous mercury emission monitoring (HgCEM) of regulated point sources. The primary components are in a controlled enclosure either at ground level or at the stack. A heated line extends to Model 3342 Probe located at the stack sampling point. The Tekran® PC Controller provides continuous operation, periodic calibrations and data reporting. The Tekran® 3310Xi Mercury Generator provides the required NIST traceable calibration gases. The Tekran® 2537Xi detector, based on pure gold pre-concentration and cold vapor atomic fluorescence, combined with the 3321 Sample Conditioner & Control Unit, is the proven performance leader for today’s low-level (<1 ug/m3) flue gas mercury monitoring.
Cabinet-Based HgCEM Configuration
Customers desiring a fully integrated solution now have the option of the Tekran® 3300Xi Cabinet-Based System. Designed for flexibility, the turn key system comes fully installed in a compact climate-controlled enclosure. The small footprint enables the shelter to be installed in a variety of locations such as the stack platform, near a testing duct, or in the process research laboratory. Installing the system at the stack offers considerable savings by minimizing the length of heated umbilical lines, and thereby reducing power requirements. Like all Tekran HgCEM systems, the cabinet-based system is fully customizable to meet any measurement requirement.
Dual-Probe Emission Source HgCEM Configuration
The Tekran® 3300Xi Dual-Probe Configuration is the next generation of proven mercury continuous emission monitoring (HgCEM) technology. The new elegant and compact physical design lowers the cost of installation, operation and service through advanced modularity, functionality and a new software interface. The 3300Xi can easily accept a second probe for continuous monitoring upstream and downstream of installed control technology. The 3300Xi Dual-Probe HgCEM System is anchored by a common 2537Xi Analyzer, 3310Xi Elemental Mercury Generator and 3321 Conditioner & Controller Unit (CCU) that switches between two sampling probes.
Research HgCEM Configuration #1
The Tekran® R&D team has developed a number of custom configurations for mercury control technology research programs. Scientists have learned that high quality measurements in simulated flue gas are vital for the evaluation and commercialization of mercury abatement technology. For research studies, the modularity of the 3321 Conditioner and Control Unit easily accommodates a scaled down version of our full HgCEM system. Using the 3345D Dilution Probe, the 3321 can directly accept particle free process gas stream and provide continuous high frequency total and speciated mercury results. In the example configuration shown, The Tekran® 3310Xi Elemental Hg Source and oxidized Hg from the 3321 Oxidizer Module provides a known input of mercury to evaluate the installed abatement technology.
Research HgCEM Configuration #2
Many Tekran® 3300Xi systems have been deployed for research purposes. In fact, the US EPA purchased 3 complete Tekran® 3300 systems for their mercury flue gas research work. Many such systems are being used for mercury control technology development or evaluation. Depending on the research needs and goals, the Tekran® 3300Xi can easily be customized. For example, the Tekran® 3345D-DP Dilution Probe is chosen for research applications because of its ability sample two independent ports. With particle-free simulated fluegas, the sample probe configuration is greatly simplified and a simple heated line is all that’s required. The 3345D-DP dilutes the fluegas sample and provides automated port switching. An example of a typical pilot plant research configuration is shown, with heated lines, sample conditioner, detector, PC Controller, and elemental mercury generator.