The separation of H₂S from natural gas, biogas, and coal gas is an essential process that requires large energy input and high capital costs. We propose a new sorption-based process, which can be coupled with the Claus desulfurization process to reduce sulfur emissions. This new process is based on a new sorbent material consisting of a specific composition of Cu, Mg, and Al oxides and exhibiting superior sulfur capacity (∼7.5 mmol/g) at process conditions compatible for integration with the Claus process. CuO is the active sorbent component, which during H₂S uptake is converted to CuS and can be fully regenerated during cyclic operation. Al₂O₃ and small amounts of MgO are shown to be essential components that contribute to sorbent activity and stability.

中文翻译：

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用于减少硫排放的高容量可再生 H2S 吸附剂

从天然气、沼气和煤气中分离 H ₂ S 是一个需要大量能量输入和高资本成本的重要过程。我们提出了一种新的基于吸附的工艺，它可以与克劳斯脱硫工艺结合以减少硫排放。这种新工艺基于一种新的吸附剂材料，该材料由特定成分的 Cu、Mg 和 Al 氧化物组成，并在与克劳斯工艺集成的工艺条件下表现出优异的硫容量（~7.5 mmol/g）。CuO 是活性吸附剂组分，其在 H ₂ S 吸收过程中转化为 CuS，并可在循环操作过程中完全再生。铝₂ O ₃ 和少量的 MgO 被证明是有助于吸附剂活性和稳定性的基本成分。