Kinetics of Direct CO2 Capture from Ambient Air Using K2CO3/Al2O3 Composite Sorbent - Доклады на конференциях | Sciact - CRIS-система Института катализа

Kinetics of Direct CO2 Capture from Ambient Air Using K2CO3/Al2O3 Composite Sorbent Доклады на конференциях

Язык

Английский

Тип доклада

Устный

Конференция

14th International Conference on Sustainable Energy Technologies (SET 2015)
25-27 авг. 2015 , Nottingham

Авторы

Веселовская Жанна Вячеславовна ^1,2,3 , Деревщиков Владимир Сергеевич ^1,2,3 , Окунев Алексей Григорьевич ^1,2

Организации

1	Институт катализа им. Г.К. Борескова СО РАН
2	Новосибирский национальный исследовательский государственный университет
3	Новосибирский национальный исследовательский государственный университет

The composite material K2CO3/Al2O3 is a promising solid absorbent for direct CO2 capture from ambient air. In the current work the kinetics of CO2 absorption by this composite material was studied in the perfectly mixed reactor. The dependence of CO2 absorption rate on temperature and characteristic grain size of the composite sorbent was investigated. It was revealed that the total CO2 uptake decreases in the temperature range from 50 to 80oC. Comparison of CO2 absorption kinetics of by fractions of the composite with characteristic grain sizes of 0.8-1.0 mm and 1.6-2.0 mm showed that the initial rate of CO2 absorption inversely depends on characteristic grain size of the composite material, which indicates that the absorption process is limited by mass transfer. The results obtained are of interest for the capture of air-borne CO2 with subsequent renewable methane production using H2 from alternative sources of energy.

Veselovskaya J.V. , Derevshhikov V.S. , Okunev A.G.
Kinetics of Direct CO2 Capture from Ambient Air Using K2CO3/Al2O3 Composite Sorbent
14th International Conference on Sustainable Energy Technologies (SET 2015) 25-27 Aug 2015