Water Sorption on Composites “LiBr in a Porous Carbon” Full article
| Journal |
Fuel Processing Technology
ISSN: 0378-3820 |
||||
|---|---|---|---|---|---|
| Output data | Year: 2002, Volume: 79, Number: 3, Pages: 225-231 Pages count : 7 DOI: 10.1016/S0378-3820(02)00186-8 | ||||
| Tags | Coals, Composites, Lithium bromide, Water sorption | ||||
| Authors |
|
||||
| Affiliations |
|
Funding (2)
| 1 | The Ministry of Education and Science of the Russian Federation | UR.05.01.028 |
| 2 | National Research Council |
Abstract:
Water sorption equilibrium of LiBr confined to pores of a mesoporous synthetic carbon Sibunit and a macroporous expanded graphite (samples SWS-2C and SWS-2EG, respectively) was studied. Isobars of water sorption on these composites are measured at vapor pressure 6–81 mbar and temperature 30–145 °C. The type of sorption equilibrium for the two composites appears to be quite different. The isobars for SWS-2EG have a plateau corresponding to one molecule of H2O adsorbed by one molecule of LiBr, which indicates the formation of crystalline hydrate LiBr·H2O inside pores with a monovariant type of equilibrium. At lower temperatures, the equilibrium becomes divariant that is typical for LiBr–water solutions. On the contrary, the water sorption equilibrium for SWS-2C is divariant over the whole temperature and pressure range which means that no crystalline hydrates are formed inside Sibunit pores. In our opinion, this distinction results from differences in a pore structure of the host carbons. The composite sorption capacity can reach 0.6–1.1 g H2O per 1 g of the dry sorbent at relative humidity 70%. The advanced sorption capacity makes the sorbents promising for gas drying, thermal storage of energy and other applications.
Cite:
Gordeeva L.G.
, Restuccia G.
, Freni A.
, Aristov Y.I.
Water Sorption on Composites “LiBr in a Porous Carbon”
Fuel Processing Technology. 2002. V.79. N3. P.225-231. DOI: 10.1016/S0378-3820(02)00186-8 WOS Scopus РИНЦ ANCAN OpenAlex
Water Sorption on Composites “LiBr in a Porous Carbon”
Fuel Processing Technology. 2002. V.79. N3. P.225-231. DOI: 10.1016/S0378-3820(02)00186-8 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Feb 4, 2002 |
| Accepted: | Apr 4, 2002 |
| Published online: | Aug 1, 2002 |
| Published print: | Dec 1, 2002 |
Identifiers:
| Web of science: | WOS:000179373900004 |
| Scopus: | 2-s2.0-0036887709 |
| Elibrary: | 13407095 |
| Chemical Abstracts: | 2002:783969 |
| Chemical Abstracts (print): | 138:159232 |
| OpenAlex: | W2063856350 |