Employment
News & Publications
Centers of Excellence

Mercury Research

Emissions Research Laboratory
Mercury research activities specialize in bench-scale systems studying mercury, SOx/NOx, catalysts, sorbents, and related work. Two bench-scale systems capable of simulating flue gas conditions such as temperature, particulate loadings, air-to-cloth ratios, and various gas concentrations (e.g., SO2, O2, CO, CO2) are used.

Major equipment and instrumentation include the following:

  • Mobile sampling trailer for mercury field testing
  • PS Analytical Sir Galahad mercury analyzer
  • Tekran mercury analyzer
  • Gilibrator gas flow calibrators
  • Porter mass flow controllers
  • Bench-scale test cells
  • Leeman PS200 automated mercury analyzer
  • DMA 80 coal and ash mercury analyzer
  • OhioLumex mercury spectrometer
  • Nippon mercury vapor analyzer
  • Mercury speciation conversion systems

The following bench-scale testing services are available:

  • Mercury continuous emission monitor (CEM) evaluation
  • Bench-scale mercury and other trace elements
  • Screening of potential sorbents and/or filter materials
  • Catalyst evaluations
  • Bench-scale particle reentrainment
  • Ammonia work
  • SOx/NOx work

Sampling Methods

Particulate Research

Particulate research activities specialize in flue gas sampling on bench-, pilot-, and full-scale systems including boilers and power generation facilities. Laboratory staff have extensive training in emission testing and sampling.

Major equipment and instrumentation include the following:

  • Mobile sampling trailer for particle-size and mercury field testing
  • Leeman PS200 automated mercury analyzer
  • TSI 3300 and 3310A aerodynamic particle sizers
  • TSI 3410 dry powder dispersers
  • ECOM AMERICA analyzers
  • Sierra Misco 7200 stack-sampling control boxes
  • Anderson auto five stack-sampling control boxes
  • Environmental stack-sampling control boxes
  • ASTM International resistivity measurement cell
  • Bench-scale test cells
  • Ritter wet test gas meters
  • Gilibrator gas flow calibrator
  • Anderson impactors
  • Anderson multicyclones

Particulate-Sizing Capabilities

  • Multicyclone and impactors – Provide a size cut from a sample withdrawn from the stack isokinetically, which may not provide enough sample for some analytical techniques.
  • High-volume, three-stage source assessment sampling system – Provides a size cut on high-volume samples.