Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6632501 | Fuel | 2018 | 6 Pages |
Abstract
Chemical modification of the amino functional groups of amine-impregnated solid sorbents is an effective strategy for drastically improving the regeneration performance for CO2 capture. In this study, isopropyl groups were introduced into tetraethylenepentamine (TEPA) to obtain N-(isopropyl)-TEPA (IP-TEPA), which was impregnated in mesocellular silica foam (MSU-F). The obtained solid sorbent enabled low-temperature regeneration with a low regeneration energy. To clarify the role of the IP groups, experimental and computational methods were used to compare the IP-TEPA/MSU-F sorbent with TEPA/MSU-F in terms of CO2 working capacity, reaction product stability, self-diffusion coefficient, 13C spin-lattice relaxation time, and CO2 capture performance in steam-aided vacuum swing adsorption.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Hidetaka Yamada, Junpei Fujiki, Firoz A. Chowdhury, Katsunori Yogo,