Analysis of the Macrokinetics of CO2 Sorption on 10%NaNO3/MgO Sorbent and Modeling of an Adsorber with a Hydrogen Capacity of 10 kg/h | Sciact - CRIS-система Института катализа

Analysis of the Macrokinetics of CO2 Sorption on 10%NaNO3/MgO Sorbent and Modeling of an Adsorber with a Hydrogen Capacity of 10 kg/h Научная публикация

Журнал

Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555

Вых. Данные

Год: 2025, Том: 17, Номер: 2, Страницы: 92-102 Страниц : 11 DOI: 10.1134/s2070050425700011

Ключевые слова

magnesium oxide, CO2 sorption, kinetics, modeling, adsorber

Авторы

Shigarov A.B. ¹ , Nikulina I.E. ¹ , Pakharukova V.P. ¹ , Potemkin D.I. ^1,2

Организации

1	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences (BIC SB RAS), Novosibirsk, 630090 Russia
2	Novosibirsk State University (NSU), Novosibirsk, 630090 Russia

Информация о финансировании (1)

Российский научный фонд

21-79-10377

This study proposes a first-order macrokinetic model for CO2 sorption on a 10 mol % NaNO3/MgO sorbent. According to the experimental gravimetric data, the maximum sorption capacity of the 10 mol % NaNO3/MgO sorbent is determined and does not depend on the partial pressure of CO2; at 320°C it is equal to 159% (based on the initial mass of the sample) or 13.4 mmol CO2/gsorb. The calculated value of the sorption constant kads at temperatures of 280–320°C and a CO2 partial pressure of 0.50–0.75 atm is 0.017 min–1 atm–1. Based on the obtained kinetics, modeling of adiabatic and isothermal CO2 adsorbers was performed within the framework of the technological scheme for producing 10 kg/h of hydrogen from natural gas at an operating pressure of 12 atm. The calculations showed that for the adsorber to function effectively intensive removal of the heat released during the sorption process is necessary. This allows for the sorption of CO2 for 30 min at a temperature of 300°C and a gas hourly space velocity GHSV = 1170 h–1, while the concentration of CO2 at the outlet in dry gas does not exceed 1.5 mol %.

Shigarov A.B. , Nikulina I.E. , Pakharukova V.P. , Potemkin D.I.
Analysis of the Macrokinetics of CO2 Sorption on 10%NaNO3/MgO Sorbent and Modeling of an Adsorber with a Hydrogen Capacity of 10 kg/h
Catalysis in Industry. 2025. V.17. N2. P.92-102. DOI: 10.1134/s2070050425700011 WOS

Шигаров А.Б. , Никулина И.Е. , Пахарукова В.П. , Потемкин Д.И.
Анализ макрокинетики сорбции СО2 на 10% NaNO3/MgO сорбенте и моделирование адсорбера с производительностью по водороду 10 кг/ч
Катализ в промышленности. 2024. №4. С.4-15. DOI: 10.18412/1816-0387-2024-4-4-15 РИНЦ CAPlus OpenAlex

Поступила в редакцию:	4 дек. 2023 г.
Принята к публикации:	19 янв. 2024 г.
Опубликована в печати:	1 июн. 2025 г.
Опубликована online:	24 июн. 2025 г.

Web of science:

WOS:001515178700001

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