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KEMA possesses a test installation in which the activity of fresh and spent SCR DeNOx catalyst is determined under well-defined and uniform conditions.
A selected part of catalyst is exposed to a representative flue gas mixture (containing N2, O2, H2O, NO, NH3 and possibly SO2). Consequently, the conversion of NO with NH3 can be measured as a function of the ingoing NH3/NOx ratio and optionally for other process conditions such as temperature, NOx concentration and space velocity.
Based on a pre-defined set of activity measurements KEMA will calculate a reliable and validated remaining lifetime for the catalysts inventory and advise you on the most advantageous order of replacing individual catalyst layers in the SCR installation.
For more information please contact us.
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