A series of Cu-SAPO-34 zeolites with different Cu contents were prepared by one-pot synthesis method. The NH3-SCR performance and the oxidation of elemental mercury (Hg⁰) efficiency over the Cu-SAPO-34 samples were tested respectively. With the increase of Cu loadings, the amount of Cu²⁺ and CuO were both increased, wherein the former promoted SCR reaction and the latter accelerated the Hg⁰ oxidation. What's more, the ratio of Cu²⁺/CuO was also increased. The NO conversion rate and Hg⁰ removal efficiency could be over 80% on the high Cu catalyst at 150–300 °C.

中文翻译：

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Cu-SAPO-34沸石中不同Cu种类脱除NO和Hg ^0的研究

通过一锅法合成了一系列不同Cu含量的Cu-SAPO-34沸石。分别测试了Cu-SAPO-34样品的NH3-SCR性能和元素汞（Hg ⁰）的氧化效率。随着Cu含量的增加，Cu ²⁺和CuO的含量均增加，其中前者促进了SCR反应，而后者促进了Hg ^0的氧化。而且，Cu ²⁺ / CuO的比例也增加了。在150–300°C的高铜催化剂上，NO转化率和Hg ⁰去除效率可能超过80％。