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Effect of technology application of NOx removal by O3 on fly ash concentration

  • Wang Jianfeng*
  • , Gong Lei
  • , Liu Peiqi
  • , Hu Ximing
  • , Zhu Yue
  • *Corresponding author for this work
  • HuaDian Electric Reaesrch Institute Co. LTD
  • Demister (Shanghai) Environmental Technology Co. LTD

Research output: Contribution to journalConference articlepeer-review

Abstract

An experimental study was carried out on the concentration of dust in flue gas from the outlet of desulphurization system under the conditions of different ammonia and ozone recharge, When the dust samples were dried at different temperatures, the mass concentration of dust was quite different. Analysis of samples by TG-DSC and XPS, It was concluded that the great change in the mass concentration of soot is mainly due to the influence of the combined denitrification process of SNCR and O3 on the composition of the original flue gas. The formation of Soluble salt was carried by droplets in the flue gas and retained on the filter membrane. It led to a great change in the concentration of dust. The main substances of the soluble salt were carbonic acid, ammonium nitrate and calcium nitrate.

Original languageEnglish
Article number012001
JournalIOP Conference Series: Materials Science and Engineering
Volume721
Issue number1
DOIs
StatePublished - 7 Jan 2020
Externally publishedYes
Event2019 International Conference on Boilers and Heat Exchangers, ICBHE 2019 - Hangzhou, China
Duration: 1 Nov 20194 Nov 2019

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