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常温条件下O2和NO2对Ca(OH)2吸附SO2产物的影响

许亚伟 王志鹏 李鹏飞 韩永强 李清海 佟会玲

许亚伟, 王志鹏, 李鹏飞, 韩永强, 李清海, 佟会玲. 常温条件下O2和NO2对Ca(OH)2吸附SO2产物的影响[J]. 环境工程, 2020, 38(11): 117-122,129. doi: 10.13205/j.hjgc.202011019
引用本文: 许亚伟, 王志鹏, 李鹏飞, 韩永强, 李清海, 佟会玲. 常温条件下O2和NO2对Ca(OH)2吸附SO2产物的影响[J]. 环境工程, 2020, 38(11): 117-122,129. doi: 10.13205/j.hjgc.202011019
XU Ya-wei, WANG Zhi-peng, LI Peng-fei, HAN Yong-qiang, LI Qing-hai, TONG Hui-ling. INFLUENCE OF O2 AND NO2 ON ADSORPTION PRODUCTS OF SO2 BY Ca(OH)2 AT LOW TEMPERATURE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(11): 117-122,129. doi: 10.13205/j.hjgc.202011019
Citation: XU Ya-wei, WANG Zhi-peng, LI Peng-fei, HAN Yong-qiang, LI Qing-hai, TONG Hui-ling. INFLUENCE OF O2 AND NO2 ON ADSORPTION PRODUCTS OF SO2 BY Ca(OH)2 AT LOW TEMPERATURE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(11): 117-122,129. doi: 10.13205/j.hjgc.202011019

常温条件下O2和NO2对Ca(OH)2吸附SO2产物的影响

doi: 10.13205/j.hjgc.202011019
基金项目: 

二氧化碳固体吸附工艺优化和方案设计(2017YFB0603304-2)。

详细信息
    作者简介:

    许亚伟(1993-),男,硕士,主要研究方向为钙基常温同时脱硫脱硝。xyw15@mails.tsinghua.edu.cn

    通讯作者:

    佟会玲(1968-),女,博士,副教授,主要研究方向为常温同时脱硫脱硝。tonghl@mail.tsinghua.edu.cn

INFLUENCE OF O2 AND NO2 ON ADSORPTION PRODUCTS OF SO2 BY Ca(OH)2 AT LOW TEMPERATURE

  • 摘要: 在100℃的无水蒸气条件下研究以Ca(OH)2为吸收剂同时脱硫脱硝过程中SO2的固定和氧化过程,以及O2和NO2的作用。分别用原位漫反射傅里叶红外光谱和固定床反应器,研究过程中Ca(OH)2表面和气相的成分变化。结果表明:SO2吸附在Ca(OH)2表面形成的CaSO3不易被O2氧化,但可以被NO2氧化。同时脱除过程中,NO2对CaSO3的氧化具有选择性:930~936 cm-1位置的红外吸收峰在反应过程中先升高后降低,980~995 cm-1位置的红外吸收峰只升高不降低。无O2条件下,参与反应的NO2以接近1∶1的比例转化为NO,而有O2条件下Ca(OH)2同时脱除NO2和SO2时,Ca(NO32的含量明显增加,且反应前期CaSO4的生成速率加快。
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出版历程
  • 收稿日期:  2020-02-17
  • 网络出版日期:  2021-04-23
  • 刊出日期:  2021-04-23

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