The Formation of Microporous Carbon Sorbents Using Mechanical and Thermochemical Activation for Efficient Separation of Natural and Manmade Gases Full article
| Journal |
Protection of Metals and Physical Chemistry of Surfaces
ISSN: 2070-2051 , E-ISSN: 2070-206X |
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| Output data | Year: 2025, Volume: 61, Number: 4, Pages: 778–785 Pages count : 8 DOI: 10.1134/S2070205125700674 | ||
| Tags | HIGH-SURFACE-AREA; DOPED POROUS CARBON; CO2 ADSORPTION; MECHANOCHEMICAL SYNTHESIS; FACILE PREPARATION; CAPTURE; CARBONIZATION; SOLVENT; SIZE | ||
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0039 |
Abstract:
A method is described for producing a microporous carbon sorbent based on a heavy oil refining residue—petroleum asphalt—which, after carbonization at 500°C, was mixed with potassium hydroxide in a ratio of from 4 : 1 to 1 : 1 in an AGO-2 planetary centrifugal mill with a centripetal acceleration of the grinding media of 1000 m/s2, followed by high-temperature activation at 800°С for 60 min. For the obtained samples, adsorption isotherms were measured of pure gases of CO2 gases and CH4 at 273 and 298 K. Thus, for samples obtained with a KOH/asphalt ratio of 1 and 2, at 273 K and 1 bar, the adsorption capacity for CO2 and CH4 amounted to 5.6–5.9 and 2.2 mmol/g, respectively. The best CO2 adsorption capacity at 273 K and 1 bar in the studied series of samples—6.3 mmol/g—was obtained for the KOH : asphalt = 3 : 1 sample. It was found that mechanical activation of asphalt and KOH promotes the formation of carbon materials with a more developed porous structure, namely, an increase in textural characteristics by 30% compared to samples prepared without MA. Thus, the presented approach of using mechanical and chemical activations contributes to the production of porous carbon that meets the requirements of adsorption separation of a mixture of methane and carbon dioxide gases.
Cite:
Gorbunova O.V.
, Gulyaeva T.I.
, Arbuzov A.B.
, Baklanova O.N.
, Lavrenov A.V.
The Formation of Microporous Carbon Sorbents Using Mechanical and Thermochemical Activation for Efficient Separation of Natural and Manmade Gases
Protection of Metals and Physical Chemistry of Surfaces. 2025. V.61. N4. P.778–785. DOI: 10.1134/S2070205125700674 WOS Scopus РИНЦ publication_identifier_short.sciact_ihcp_identifier_type
The Formation of Microporous Carbon Sorbents Using Mechanical and Thermochemical Activation for Efficient Separation of Natural and Manmade Gases
Protection of Metals and Physical Chemistry of Surfaces. 2025. V.61. N4. P.778–785. DOI: 10.1134/S2070205125700674 WOS Scopus РИНЦ publication_identifier_short.sciact_ihcp_identifier_type
Original:
Горбунова О.В.
, Гуляева Т.И.
, Арбузов А.Б.
, Бакланова О.Н.
, Лавренов А.В.
Формирование микропористых углеродных сорбентов с применением механической и термохимической активации для эффективного разделения компонентов природного и техногенных газов
Физикохимия поверхности и защита материалов. 2024. Т.60. №4. С.339-347. DOI: 10.31857/S0044185624040013 РИНЦ OpenAlex publication_identifier_short.sciact_ihcp_identifier_type
Формирование микропористых углеродных сорбентов с применением механической и термохимической активации для эффективного разделения компонентов природного и техногенных газов
Физикохимия поверхности и защита материалов. 2024. Т.60. №4. С.339-347. DOI: 10.31857/S0044185624040013 РИНЦ OpenAlex publication_identifier_short.sciact_ihcp_identifier_type
Dates:
| Submitted: | Feb 7, 2024 |
| Published print: | Aug 1, 2025 |
| Accepted: | Sep 1, 2025 |
| Published online: | Jan 14, 2026 |
Identifiers:
| Web of science: | WOS:001663110700014 |
| Scopus: | 2-s2.0-105027587879 |
| Elibrary: | 88771604 |
| publication_identifier.sciact_ihcp_identifier_type: | 4532 |
Citing:
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