Abstract Reactive adsorption of hydrogen sulphide (H2S) from gaseous streams at room temperature with mixed Zn and Cu active phase supported onto γ-alumina is dealt in this manuscript. Sorbents with a fixed total metal content and variable Cu:Zn ratios were prepared by impregnation of commercial γ-alumina spheres in order to investigate the role of the support and the possible synergic effect between the two metals on the adsorption mechanism and performance. H2S (500–3000 ppmv in N2) removal tests were run under dynamic conditions at 30 °C. Experimental techniques such as BET and pore size distribution by N2-adsorption, SEM-EDX, XRD and DRIFT analysis were coupled for the characterization of fresh and spent sorbents. TPD/TPO experiments on saturated sorbents were performed to assess their regenerability and allowed the speciation of adsorbed sulphur species, testifying the complexity of the surface reactions and the effect of the support.

中文翻译：

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突出载体对复合 Zn-Cu 吸附剂的低温吸附 H 2 S 的影响

摘要 本手稿讨论了在室温下反应吸附 Zn 和 Cu 混合活性相从气流中吸附硫化氢 (H2S)。通过浸渍商业γ-氧化铝球制备具有固定总金属含量和可变铜锌比的吸附剂，以研究载体的作用以及两种金属之间可能对吸附机理和性能的协同作用。H2S（在 N2 中为 500–3000 ppmv）去除测试在 30 °C 的动态条件下进行。将 BET 和孔径分布等实验技术结合使用 N2 吸附、SEM-EDX、XRD 和 DRIFT 分析来表征新鲜和用过的吸附剂。