Cited by 71Industrial Gas Emission ControlAdsorption and biosorption for pollutant removalCarbon Dioxide Capture Technologies

Adsorption and desorption of SO 2 , NO and chlorobenzene on activated carbon

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Li, Yuran, Guo, Yangyang, Zhu, Tingyu, Ding, Song·2016·Journal of Environmental Sciences

Abstract

Activated carbon (AC) is very effective for multi-pollutant removal; however, the complicated components in flue gas can influence each other's adsorption. A series of adsorption experiments for multicomponents, including SO2, NO, chlorobenzene and H2O, on AC were performed in a fixed-bed reactor. For single-component adsorption, the adsorption amount for chlorobenzene was larger than for SO2 and NO on the AC. In the multi-component atmosphere, the adsorption amount decreased by 27.6% for chlorobenzene and decreased by 95.6% for NO, whereas it increased by a factor of two for SO2, demonstrating that a complex atmosphere is unfavorable for chlorobenzene adsorption and inhibits NO adsorption. In contrast, it is very beneficial for SO2 adsorption. The temperature-programmed desorption (TPD) results indicated that the binding strength between the gas adsorbates and the AC follows the order of SO2>chlorobenzene > NO. The adsorption amount is independent of the binding strength. The presence of H2O enhanced the component effects, while it weakened the binding force between the gas adsorbates and the AC. AC oxygen functional groups were analyzed using TPD and X-ray photoelectron spectroscopy (XPS) measurements. The results reveal the reason why the chlorobenzene adsorption is less affected by the presence of other components. Lactone groups partly transform into carbonyl and quinone groups after chlorobenzene desorption. The chlorobenzene adsorption increases the number of C=O groups, which explains the positive effect of chlorobenzene on SO2 adsorption and the strong NO adsorption.

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Crossref · 10.1016/j.jes.2015.08.022

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Authors
Li, Y., Guo, Y., Zhu, T., & Ding, S.
Affiliations
Chinese Academy of Sciences (CN)
Corresponding author
Zhu, Tingyu
Venue
Journal of Environmental Sciences
Publisher
Elsevier BV
Published
2016-05
Volume
43
Issue
5
Pages
128-135
ISSN
1001-0742 (ISSN-L)
OpenAlex
W2235309997
Cited by
71
References
29
Citations by year
2026: 4 · 2025: 6 · 2024: 5 · 2023: 8 · 2022: 10 · 2021: 11 · 2020: 12 · 2019: 5 · 2018: 7 · 2017: 3
FWCI
4.45
Type
journal article
Language
en
Open access
Locations
  • Journal of Environmental Sciences (publishedVersion)
  • PubMed (publishedVersion)
  • Institute of Process Engineering, CAS Institutional Repository (submittedVersion, cc-by-nc-sa)
  • Institute of Process Engineering, CAS Institutional Repository (submittedVersion)
Funders
  • National Natural Science Foundation of China (21177129, 21207132)
  • Strategic Priority Research Program of the Chinese Academy of Sciences (XDB05050502)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Industrial Gas Emission Control
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
Keywords
activated carbon, SO2 adsorption, NO adsorption, flue gas, multicomponent adsorption, adsorption inhibition, water vapor effect, oxygen-containing functional groups, lactone groups, temperature-programmed desorption, fixed-bed reactor, pollutant removal
MeSH terms
Adsorption, Air Pollutants, Charcoal, Chlorobenzenes, Models, Chemical, Nitrogen Oxides, Sulfur Dioxide

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