Mercury capture performance of recyclable magnetospheres catalyst for coal-fired flue gas and the process route study

ZHANG Yi; YANG Jianping; ZHAO Yongchun; ZHANG Junying; ZHENG Chuguang

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Mercury capture performance of recyclable magnetospheres catalyst for coal-fired flue gas and the process route study

Thermal Power Generation Issue 9, (2016)

更新时间：2025-09-28

- Mercury capture performance of recyclable magnetospheres catalyst for coal-fired flue gas and the process route study
- 作者机构：
  
  1. 华中科技大学煤燃烧国家重点实验室,湖北,武汉,430074
  2. 三河发电有限责任公司,河北,廊坊,065201
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.6
- Published Online：25 September 2016，
  
  Published：2016
- 稿件说明：
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ZHANG Yi, YANG Jianping, ZHAO Yongchun, et al. Mercury capture performance of recyclable magnetospheres catalyst for coal-fired flue gas and the process route study[J]. Thermal Power Generation, 2016, (9).
DOI：

ZHANG Yi, YANG Jianping, ZHAO Yongchun, et al. Mercury capture performance of recyclable magnetospheres catalyst for coal-fired flue gas and the process route study[J]. Thermal Power Generation, 2016, (9). DOI：

摘要

针对目前常规汞吸附剂在应用中的瓶颈

本文提出了采用在飞灰中喷入磁珠脱除烟气中单质汞的新思路并结合我国燃煤中氯含量较低的问题

基于大量实验结果提出了相应的增强磁珠脱汞能力的方法

在此基础上

设计了磁珠控制燃煤烟气汞排放的工艺路线

即磁珠的磁选分离→磁珠催化剂的制备→将磁珠在电除尘器最后一级电场前喷入烟气中捕获零价汞→除尘器将磁珠和细粒子飞灰从烟气中捕获→磁珠再次从飞灰中磁选分离→磁珠活化/再生并回收资源化利用释放的汞→磁珠的循环使用。以磁珠为载体

负载活性组分(Co3O4或CuCl2)

能够显著增强磁珠的脱汞能力

并适用于低氯或无氯烟气环境中汞的捕获

同时合成的催化剂具有良好的再生循环性能。该工艺可在高效、低成本脱除烟气中Hg0的同时，有效避免吸附态汞的二次释放污染。

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