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Adsorption Species Distribution and Multicomponent Adsorption Mechanism of SO2, NO, and CO2 on Commercial Adsorbents
Luo, Yei1,3; Guo, Yangyang1; Zhu, Tingyu1,2; Zheng, Yang1
2017-10-01
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume31Issue:10Pages:11026-11033
Abstract

Adsorption is a commonly used method for gas pollutant removal. The adsorption performances of four commercial adsorbents have been compared in this work through a fixed-bed reactor. The single gas adsorption results show that zeolite is more effective for SO2, NO, and CO, removal among the four adsorbents. SO2, NO, and CO2 are mainly monolayer adsorbed on adsorbents. Physically adsorbed SO2 is the main adsorption species on 13X zeolite, SA zeolite, and mesoporous alumina according to TPD-MS, while SO2 is more easily oxidized on activated carbon than the other adsorbents. NO can be oxidized more easily on zeolite than activated carbon. Only physically adsorbed CO2 is detected on these adsorbents. Multicomponent adsorption is investigated on 13X zeolite and activated carbon. For gas adsorption on 13X zeolite, the inhibitive effect of NO on SO2 is 26.3% higher than that of CO2 on SO2 indicating that NO plays a dominant role in SO2 adsorption. Physically adsorbed NO is the only NO adsorption species on 13X when SO2 exists, showing NO oxidation on 13X is greatly inhibited by SO2. For gas adsorption on activated carbon, chemically adsorbed SO2 increases largely after NO is put in, showing that the promotive effect of NO on SO2 is mainly for the chemically adsorbed SO2. In the presence of SO2 chemically adsorbed NO almost disappeared, which indicates that SO2 mainly dominates chemically adsorbed NO on activated carbon. The effects of adsorbent performance on multicomponent gas adsorption are reflected by the gas adsorption mechanism. These findings provide considerable specific information for industrial flue gas purification.

SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/acs.energyfuels.7b01422
Indexed BySCI
Language英语
WOS KeywordActivated Carbon ; Catalytic Adsorption ; Flue-gas ; Temperature ; Oxidation ; Zeolites ; Dioxide ; Desorption ; Removal ; Alumina
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationChinese Academy of Sciences(XDB10040201) ; National Nature Science Foundation of China(51608508)
WOS IDWOS:000413710300075
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23372
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
3.Guizhou Univ, Sch Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China
Recommended Citation
GB/T 7714
Luo, Yei,Guo, Yangyang,Zhu, Tingyu,et al. Adsorption Species Distribution and Multicomponent Adsorption Mechanism of SO2, NO, and CO2 on Commercial Adsorbents[J]. ENERGY & FUELS,2017,31(10):11026-11033.
APA Luo, Yei,Guo, Yangyang,Zhu, Tingyu,&Zheng, Yang.(2017).Adsorption Species Distribution and Multicomponent Adsorption Mechanism of SO2, NO, and CO2 on Commercial Adsorbents.ENERGY & FUELS,31(10),11026-11033.
MLA Luo, Yei,et al."Adsorption Species Distribution and Multicomponent Adsorption Mechanism of SO2, NO, and CO2 on Commercial Adsorbents".ENERGY & FUELS 31.10(2017):11026-11033.
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