Copper Exchanged Nanotitanate for High Temperature H2S Adsorption

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• 作者：Farzad Yazdanbakhsh ; Marc Bl盲sing ; James A. Sawada ; Sabereh Rezaei ; Michael M眉ller ; Stefan Baumann ; Steven M. Kuznicki
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：July 23, 2014
• 年：2014
• 卷：53
• 期：29
• 页码：11734-11739
• 全文大小：350K
• ISSN：1520-5045

文摘

The H₂S breakthrough capacity of copper-exchanged Engelhard Titanosilicate-2 (ETS-2) was measured at temperatures up to 950 掳C and it was found that the adsorbent efficiency remains unchanged across the entire temperature range. Below 750 掳C, the adsorption capacity at breakthrough is 0.7 mol of H₂S per mole of copper while above 750 掳C the capacity of the adsorbent is halved. The change in H₂S capacity is due to Cu²⁺ reduction by the H₂ which is formed through the thermal dissociation of H₂S. The adsorbent shows good potential for use over a wide range of operating temperatures in H₂S scrubbing processes.