While green might be the color of the day, efforts to reduce the impact of industry on the environment are nothing new. That’s why in 1996, Topsoe launched a ground-breaking cesium- promoted catalyst, the VK69, to help sulfuric acid producers cut the SO2 emission of their plants. The new intrinsic material, the optimized melt composition, and the unique 9 mm Daisy shape together resulted in 3 times higher activity for VK69 compared to conventional catalysts on the market.