Micro-Reactor SCR Catalyst Testing Facilities

Southern Research offers deNO_x, SO₂/SO₃ conversion, and Hg oxidation testing of Selective Catalytic Reduction (SCR) catalysts in our state-of-the-art Micro-Reactor SCR Catalyst Testing Facilities. We provide standard micro-reactor testing of coal and combined-cycle SCR catalysts in addition to non-standard or custom deNO_x, Hg oxidation, and SO₂ to SO₃ conversion testing of SCR catalysts.

As an additional benefit to utilities or catalyst vendors in need of large-volume standard SCR catalyst testing, Southern Research offers the option of longer-term contracts. All testing is performed according to accepted industry guidelines and protocols to ensure the highest levels of validity and reliability. The micro-reactor testing facility for deNO_x and SO₂/SO₃ conversion is an excellent choice for performing standard testing of SCR catalysts for combined-cycle plants and testing CO oxidation catalysts. A separate micro-reactor entirely constructed of glass is well-suited for performing Hg-oxidation testing. Southern Research has performed Hg-oxidation testing of SCR catalysts in this facility for more than eight years.

Advanced Features and Capabilities

• An MKS 2030 FTIR is used to measure the NO, NO₂, NH₃, H₂O, CO, and CO₂ concentrations in the flue gas, while a separate oxygen monitor measures the concentration of oxygen in the flue gas.
• A unique mercury conversion system thermally converts all mercury in the exhaust to the elemental form and uses hydrogen to prevent radicals from interacting with the elemental mercury.
• A TechRan mercury monitor is used to determine the concentration of total and elemental mercury in the exhaust. The concentration of SO₃ is measured by the controlled-condensation method.
• The physical properties of the catalyst are determined through dimensional and deflection measurements of the catalyst made by hand according to VGB guidelines.
• Surface and chemical analyses are available for SCR catalyst samples. Analyses include: BET surface area and pore size distribution obtained using a Micromeritics Monosorb Surface Area Analyzer; XRF bulk chemistry analysis; and XRF surface mapping of the catalyst.

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