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Minimize carbon footprint from Claus tail-gas units

02.01.2011  |  Heisel, M.,  Linde AG , Unterschleissheim, GermanyRameshni, M.,  Worley Parsons, Monrovia, California

Reevaluate emissions efficiencies on sulfur-removal operations

Keywords: [sulfur] [Claus] [environment] [sulfur removal] [tail gas] [refinery offgas]

There are thousands of sulfur recovery units (SRUs) worldwide converting poisonous hydrogen sulfide (H2S) into elemental sulfur (S). A typical two-stage Claus plant achieves 95%–97% recovery. In most cases, secondary tail-gas treating is required for total recoveries from 98% to 99.98%.

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