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Wet‐Oxidative Desulfurization as a Flexible and Greener Way for H2S Removal from Acid Gases

Wurm, Julian; Thielert, Holger; von Morstein, Olaf; Repke, Jens-Uwe

In wet-oxidative gas desulfurization processes, absorbed H2S is directly converted to sulfur by a redox catalyst dissolved in a circulating scrubbing solution. High flexibility is achieved through the availability of different catalyst classes. In this work, a process based on the Takahax process was investigated in a pilot plant under industrially relevant conditions with coke oven gas. A stable plant operation without sulfur precipitation was achieved by a suitable choice of the operating conditions. The solid-free operating window was determined and a sulfur redissolution strategy developed.
Published in: Chemie Ingenieur Technik, 10.1002/cite.202300076, Wiley