The Formation of Microporous Carbon Sorbents Using Mechanical and Thermochemical Activation for Efficient Separation of Natural and Manmade Gases | Sciact - CRIS-система Института катализа

The Formation of Microporous Carbon Sorbents Using Mechanical and Thermochemical Activation for Efficient Separation of Natural and Manmade Gases Научная публикация

Журнал

Protection of Metals and Physical Chemistry of Surfaces
ISSN: 2070-2051 , E-ISSN: 2070-206X

Вых. Данные

Год: 2025, Том: 61, Номер: 4, Страницы: 778–785 Страниц : 8 DOI: 10.1134/S2070205125700674

Ключевые слова

HIGH-SURFACE-AREA; DOPED POROUS CARBON; CO2 ADSORPTION; MECHANOCHEMICAL SYNTHESIS; FACILE PREPARATION; CAPTURE; CARBONIZATION; SOLVENT; SIZE

Авторы

Gorbunova O.V. ¹ , Gulyaeva T.I. ¹ , Arbuzov A.B. ¹ , Baklanova O.N. ¹ , Lavrenov A.V. ¹

Организации

1	Center for New Chemical Technologies, Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Omsk, 644040 Russia

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

FWUR-2024-0039

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.

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 ЦНХТ ID

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 ЦНХТ ID

Поступила в редакцию:	7 февр. 2024 г.
Опубликована в печати:	1 авг. 2025 г.
Принята к публикации:	1 сент. 2025 г.
Опубликована online:	14 янв. 2026 г.

Web of science:	WOS:001663110700014
Scopus:	2-s2.0-105027587879
РИНЦ:	88771604
ЦНХТ ID:	4532

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