The reduction of Hg emissions from non-ferrous metal smelting was proposed in the Minamata Convention. Regenerable sulfureted MoO₃/TiO₂, which displayed excellent performance in capturing gaseous Hg⁰, was once developed by us to recover gaseous Hg⁰ in smelting flue gas (SFG) for centralized control. Recently, a large amount of spent commercial selective catalytic reduction catalysts (for example V₂O₅-MoO₃/TiO₂) mostly deactivated by CaSO₄ was formed, creating a need for their safe disposal. As the main constituent of deactivated V₂O₅-MoO₃/TiO₂ is MoO₃/TiO₂, deactivated V₂O₅-MoO₃/TiO₂ was sulfureted to capture gaseous Hg⁰ from SFG for its safe disposal and the effects of V₂O₅ and CaSO₄ on Hg⁰ adsorption onto sulfureted MoO₃/TiO₂ were investigated. Although the capturing capacity of sulfureted MoO₃/TiO₂ moderately decreased after the impregnation of V₂O₅ and CaSO₄, sulfureted deactivated V₂O₅-MoO₃/TiO₂ still displayed excellent performance and reproducibility in gaseous Hg⁰ capture. Meanwhile, the cost performance of sulfureted deactivated V₂O₅-MoO₃/TiO₂ for Hg⁰ capture was outstanding as deactivated V₂O₅-MoO₃/TiO₂ needs to be safely disposed. Therefore, deactivated V₂O₅-MoO₃/TiO₂ can be sulfureted as a regenerable and low-cost sorbent that is effective in recovering gaseous Hg⁰ from SFG, as well as being a cost-effective and environmentally friendly method for the safe disposal of spent V₂O₅-MoO₃/TiO₂.

《水am公约》提出减少有色金属冶炼产生的汞排放量。我们曾经开发过可再生的硫化MoO ₃ / TiO ₂，它在捕获气态Hg ^0中表现出优异的性能，是为了回收烟气（SFG）中的气态Hg ⁰而进行集中控制的。近来，形成了主要由CaSO ₄失活的大量废商业选择性催化还原催化剂（例如，V ₂ O ₅ -MoO ₃ / TiO ₂），因此需要对其进行安全处理。作为失活的V ₂ O ₅ -MoO ₃的主要成分/ TiO ₂为MoO ₃ / TiO ₂，将失活的V ₂ O ₅ -MoO ₃ / TiO ₂硫化以从SFG中捕获气态Hg ⁰，以安全处置，以及V ₂ O ₅和CaSO ₄对Hg ⁰吸附的影响研究了硫化的MoO ₃ / TiO ₂。V ₂ O ₅和CaSO ₄浸渍后，硫化MoO ₃ / TiO ₂的捕获能力虽然有适度下降，硫化的失活的V ₂ O ₅ -MoO ₃ / TiO ₂在气态Hg ⁰捕获中仍显示出优异的性能和可重复性。同时，失活的废橡胶配煤炼焦V的性能价格比₂ ö ₅ -MoO ₃ /二氧化钛₂对Hg ⁰捕获是优秀作为失活的V ₂ ø ₅ -MoO ₃ /的TiO ₂需要被安全地处置。因此，失活的V ₂ O ₅ -MoO ₃ / TiO ₂可以被硫化为一种可再生的低成本吸附剂，可有效地从SFG中回收气态Hg ⁰，并且是一种经济有效且环保的方法，可安全处理废弃的V ₂ O ₅ -MoO ₃ / TiO ₂。