Comparison of by-product gas composition by activations of activated carbon

Lee Gi Bbum (이기범); Jung Eun Park (박정은); Hwang, Sang Youp (황상엽); Kim Ji Hyun (김지현); Kim Seokhwi (김석휘); Ho Kim (김호); Bum-Ui Hong (홍범의)

doi:10.1007/s42823-019-00030-2

Comparison of by-product gas composition by activations of activated carbon

Carbon Letters
Abbr : Carbon Lett.
2019, 29(3), pp.263-272
DOI : 10.1007/s42823-019-00030-2
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : June 1, 2018
Accepted : March 9, 2019
Published : June 1, 2019

Lee Gi Bbum ¹, Jung Eun Park ², Hwang, Sang Youp ², Kim Ji Hyun ², Kim Seokhwi ¹, Ho Kim ², Bum-Ui Hong ¹

¹고등기술연구원
²고등기술연구원연구조합

Accredited

ABSTRACT

In this study, commercial activated carbons (ACs) were upgraded by different activation methods, and the gases generated during the activations were defined and quantified. The chemical activation commonly applied for upgrading ACs uses complex reactions, involving pyrolysis, physical, and chemical reactions. The ACs based on wood materials were characterized by elemental analysis, N2 physisorption, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and temperature-programmed desorption mass spectrometry. The patterns and composition of the generated gases were analyzed by gas chromatography and X-ray diffraction; high-resolution scanning electron microscopy was also used to characterize the activated carbon. The AC was mostly decomposed to CO2 by pyrolysis and physical activation, while CO was mainly detected during chemical activation from the K2CO3 produced by the reactions between CO2 and K2O. The detected amounts of generated gases were differed at various KOH ratios and residence times. The highest surface area obtained in this study was 2000 m2/g at the optimum ratio of AC and KOH (1:2).

KEYWORDS

Activated carbon Potassium hydroxide Pyrolysis Physical activation Chemical activation Gas

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 4.82

Comparison of by-product gas composition by activations of activated carbon

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2023-07-14)

Total Citation Counts(KCI+WOS) (15) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (13) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-07-01)

* References for papers published after 2023 are currently being built.

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 4.82

Comparison of by-product gas composition by activations of activated carbon

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WoS Citation Counts (12) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2023-07-14)

Total Citation Counts(KCI+WOS) (15) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (13) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-07-01)

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2023-07-14)

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