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中文摘要：
采用溶胶-凝胶法制备了榆木焦负载纳米TiO2的新型光催化材料,在固定床反应器上采用汞在线分析仪研究了N2气氛下榆木焦/纳米TiO2对单质汞的吸附氧化脱除特性,探讨了紫外光照、氧气、水蒸气等条件对除汞性能的影响。结果表明,在紫外光照射下,榆木焦/纳米TiO2具有良好的氧化除汞性能,氧气和水蒸气的加入因强氧化性自由基的产生对脱汞均有促进作用;在一定的催化剂质量和烟气流量比及紫外光照下,加入10%氧气脱汞效率可以达到86%。
英文摘要：
The sol-gel method was used to prepare elm char/TiO2 photocatalytic materials.The characteristic of elemental mercury adsorption by the elm char/TiO2 was evaluated on a fixed bed reactor in N2 atmosphere.The effects of ultraviolet light（UV）,oxygen and water vapor on Hg0-removal efficiency were discussed.The results show that the elm char/TiO2 performed a high removal efficiency to mercury under UV,the oxygen and water vapor are positive to mercury removal.The mercury removal efficiency can reach 86% with 10% oxygen in the atmosphere under UV light.
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