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Simultaneous removal of SO2 and NO using a spray dryer absorption (SDA) method combined with O-3 oxidation for sintering/pelleting flue gas
Cai, Maoyu1; Liu, Xiaolong2; Zhu, Tingyu2,3; Zou, Yang1; Tao, Wenliang1; Tian, Mengkui1
2020-10-01
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
ISSN1001-0742
Volume96Pages:64-71
AbstractBased on the demand of sintering/pelleting flue gas ultra-low emission, a semi-dry method using a spray dryer absorber (SDA) combined with O-3 oxidation was proposed for simultaneous removal of SO2 and NO. Effects of O-3 injection site, O-3/NO molar ratio, and spray tower temperature on the removal efficiencies were investigated. It was revealed that both desulfurization and denitrification efficiencies could reach to 85% under the conditions of setting O-3 injection site inside of tower, O-3/NO molar ratio 1.8, spray tower temperature 85 degrees C, Ca/(S + 2 N) molar ratio 2.5 and slurry flow rate 300 mL/hr. CaSO3/Ca(OH)(2) mixture slurry was used as absorbent to simulate operating conditions in iron and steel industry. The result shows that the addition of CaSO3 weakens both removal efficiencies. In addition, the reaction mechanism of simultaneous removal of SO2 and NO using SDA combined with O-3 oxidation was proposed. (C) 2020 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
KeywordO-3 oxidation Desulfurization Denitrification Semi-dry method Spray dryer absorption
DOI10.1016/j.jes.2020.04.018
Language英语
WOS KeywordOZONE INJECTION ; CHEMISTRY ; EXHAUST ; SURFACE ; FE
Funding ProjectNationals Key Research and Development Program of China[2017YFC0210600] ; National Natural Science Foundation of China[51978644]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
Funding OrganizationNationals Key Research and Development Program of China ; National Natural Science Foundation of China
WOS IDWOS:000569216500006
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42075
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Xiaolong; Zhu, Tingyu
Affiliation1.Guizhou Univ, Sch Chem & Chem Engn, Guiyang 550025, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
Recommended Citation
GB/T 7714
Cai, Maoyu,Liu, Xiaolong,Zhu, Tingyu,et al. Simultaneous removal of SO2 and NO using a spray dryer absorption (SDA) method combined with O-3 oxidation for sintering/pelleting flue gas[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2020,96:64-71.
APA Cai, Maoyu,Liu, Xiaolong,Zhu, Tingyu,Zou, Yang,Tao, Wenliang,&Tian, Mengkui.(2020).Simultaneous removal of SO2 and NO using a spray dryer absorption (SDA) method combined with O-3 oxidation for sintering/pelleting flue gas.JOURNAL OF ENVIRONMENTAL SCIENCES,96,64-71.
MLA Cai, Maoyu,et al."Simultaneous removal of SO2 and NO using a spray dryer absorption (SDA) method combined with O-3 oxidation for sintering/pelleting flue gas".JOURNAL OF ENVIRONMENTAL SCIENCES 96(2020):64-71.
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