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By Edited by Gerald Ondrey |

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H2SO4 Catalyst BASF SE (Ludwigshafen, Germany; www.basf.com) has introduced a new catalyst for making sulfuric acid. The cesium-based O4-115 Quattro catalyst has a unique geometrical shape — a combination of four strands — leading to a 30% greater catalytic surface area compared to conventional H2SO4 catalysts. says BASF. For H2SO4 producers, this translates into higher conversion in the catalyst bed, reduction of SO2 emissions, and improved performance in plants with limited catalyst volumes. The O4-115 Quattro also has an improved catalyst hardness, which is reflected in a lower sieving loss, and leads to long-term stability and cost-efficient operation, says BASF. A reference plant operated by Domo Caproleuna GmbH (Leuna, Germany) has been using the new sulfuric acid catalyst since 2016. With the new catalyst, the plant has seen an increase of SO2 conversion and a simultaneous capacity increase.
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