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Catalysts

  • Catalysts

    VK-701 LEAP5™

    LEAP5™ catalysts are specifically designed for oxidizing SO3-strong gases, and are ideal for use in the last passes in single-absorption plants or in the third pass in 3+1 and 3+2 double-absorption plants. Lower sulfur emissions, greater output or a balance of the two LEAP5™ catalysts enable you to...
  • Catalysts

    VK-711 LEAP5™

    LEAP5™ catalysts are specifically designed for oxidizing SO3-strong gases, and are ideal for use in the last passes in single-absorption plants or in the third pass in 3+1 and 3+2 double-absorption plants.
  • Catalysts

    VK-WD

    VK-WD is optimized for lean SO2+SO3 gases, such as in a SNOX™ plant or in the bed(s) after the intermediate condenser in a WSA-DC plant.
  • Catalysts

    VK-WH

    VK-WH is a cesium-promoted catalyst designed for continuous operation down to 370°C/700°F in medium- to high-strength SO2+SO3 gasses. A top-layer of VK-WH can significantly improve operating flexibility by widening the bed temperature control window, especially in plants struggling with fluctuating...
  • Catalysts

    VK-WL

    VK-WL is a cesium-promoted catalyst designed for continuous operation down to 370°C/700°F in lean SO2+SO3 gasses (less than approximately 2 mole%). At these conditions, VK-WL offers unmatched high activity throughout the entire operating temperature range. The very high activity provides the...
  • Catalysts

    VK-WSA

    The VK-WSA formulation offers excellent activity over a wide range of operating conditions and can be used in any bed of a WSA or WSA-DC converter. VK-WSA is available in the 12 mm Daisy shape and as a dust-protection catalyst in the large 25 mm Daisy shape. 12 mm Daisy: improved energy efficiency...
  • Catalysts

    VK-WSX

    The VK-WSX formulation was developed to offer higher activity in SO2 gasses that are more than 90% converted. Typically VK-WSX is used in the last bed of a WSA converter. For this service, VK-WSX is more active than VK-WSA and even more active than cesium-promoted VK-WH catalyst. The high activity...
  • Catalysts

    VK38

    The VK38 formulation provides excellent activity over a wide range of operating conditions. VK38 is the only catalyst on the market that can be used effectively in all beds of any SO2 converter. For continuous operation VK38 offers a broad temperature range of 400-630°C (750-1170°F) and can...
  • Catalysts

    VK48

    VK48 is a high vanadium version of the standard all-round VK38 catalyst. The catalyst composition is specifically formulated for lower pass service, particularly where the process gas contains large amounts of SO3. The conversion ratio of SO2 affects the balance between the active vanadium species...
  • Catalysts

    VK59

    VK59 is a cesium-promoted catalyst optimized for medium to high strength SO2 gasses with continuous operation down to 370°C (700°F). A top layer of VK59 in the first pass makes it possible to accommodate high strength SO2 feed gas without exceeding the maximum outlet temperature of 630°C (1165°F)...
  • Catalysts

    VK69

    VK69 is designed specifically for the final pass(es) of double absorption plants. In the lean SO2 gas environment after the inter-pass absorption tower, the unique VK69 formulation offers unmatched high activity throughout the entire operating temperature range. This affords existing plants the...