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发明公开
CN106215845A 一种铜基脱汞吸附剂的脱汞及再生方法 有权

一种铜基脱汞吸附剂的脱汞及再生方法
摘要：
本发明提供了一种铜基脱汞吸附剂的脱汞及再生方法。该铜基脱汞吸附剂的脱汞及再生方法包括以下步骤：将使用过的铜基脱汞吸附剂与催化剂混合预热，然后通入含有氧气、氯化氢和保护气的混合气体，进行脱汞反应，得到固体混合物和脱附的汞；将固体混合物进行筛分和超声洗涤处理，得到再生铜基脱汞吸附剂粗品；将铜基脱汞吸附剂粗品进行干燥、煅烧，得到再生铜基脱汞吸附剂；其中，催化剂为含有氯化物和二氧化硅的催化剂，或者，催化剂为含有硫化物和二氧化硅的催化剂；以混合气体的质量为100％计，氯化氢、氧气与保护气的质量比为(5％-10％)：(1％-2％)：(88％-94％)；超声洗涤的频率为1MHz-1.5MHz。
摘要（英）：

The invention provides a demercuration and regeneration method for a copper-based demercuration adsorbent. The demercuration and regeneration method for the copper-based demercuration adsorbent includes the following steps that the used copper-based demercuration adsorbent and a catalyst are mixed and preheated, then mixed gas containing oxygen, hydrogen chloride and shielding gas is introduced, a demercuration reaction is carried out, and a solid mixture and desorbed mercury are obtained; the solid mixture is screened and ultrasonically washed, and a crude regenerated copper-based demercuration adsorbent is obtained; the crude copper-based demercuration adsorbent is dried and calcined, and the regenerated copper-based demercuration adsorbent is obtained. The catalyst contains chloride and silicon dioxide, or the catalyst contains sulfide and silicon dioxide. Based on the mass of the mixed gas being 100%, the mass ratio of hydrogen chloride to oxygen to the shielding gas is (5%-10%):(1%-2%):(88%-94%); the ultrasonic washing frequency ranges from 1 MHz to 1.5 MHz.

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