Removal of NOx by cement raw meal and biochar admixture

Bin Wang, Hong Xia Guo, Su Ping Cui, Ya Li Wang, Xiao Yu Ma, Lu Wei, Nan Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Many studies have indicated that carbon can be reduced to nitric oxide. This paper reports an experimental study of NO reduction by mixed materials of biochar or active carbon with cement raw meal. The proportion of mixed materials was 95 wt.% cement raw meal and 5 wt.% biochar or active carbon. A mixture loading amount and gas flow rate study quantifying the effect of carbon amount and gas residence on the reduction of nitric oxide was carried out. The experiment was performed in a fixed bed reactor at the temperature of 800°C, with O2 concentration of 1%. The inlet NO concentration was 1000 ppm. The characterization of structure and properties of biochar and active carbon was conducted by SEM-EDS, BET. The results show that different carbon materials have different NO reduction effect. The NO conversion rate increases with the increase of the amount of mixture loading. This method of removing NO is practically feasible.

Original languageEnglish
Title of host publicationIUMRS International Conference in Asia - IUMRS-ICA 2016
EditorsYafang Han, Baiqing Xiong, Jun Zhang, Xuefeng Liu, Xuefeng Liu, Jijun Zhao, Runhua Fan, Zuoren Nie, Meifang Zhu
PublisherTrans Tech Publications Ltd.
Pages1880-1884
Number of pages5
ISBN (Print)9783035711516
DOIs
Publication statusPublished - 2017
Externally publishedYes
Event17th IUMRS International Conference in Asia, IUMRS-ICA 2016 - Qingdao, China
Duration: 20 Oct 201624 Oct 2016

Publication series

NameMaterials Science Forum
Volume898 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference17th IUMRS International Conference in Asia, IUMRS-ICA 2016
Country/TerritoryChina
CityQingdao
Period20/10/1624/10/16

Keywords

  • Biochar
  • Cement kilns
  • Cement raw meal
  • NO

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