Capillary condensation of light hydrocarbons in MCM-41-type mesoporous materials
- Univ. of Oklahoma, Norman, OK (United States). School of Chemical Engineering
Porous inorganic solids have found use in a wide variety of industrial applications. Their outstanding properties are attributed to the large surface area and volume confined within the structure, whose accessibility provides additional space, compared to the nonporous solids. Based on the sorptive effect (at ambient temperature and relatively mild pressure), this extra space can be utilized for processing and storage purposes at the molecular level, without excessive operational energy expenditures. The MCM-41 family of surfactant templated materials were used as model mesoporous sorbents for storage of light hydrocarbon vapors, by utilizing the phenomenon of capillary condensation. The experimental data show that, because of the fine tunability of MCM-41 type materials (mesopore diameter was controlled between 20 and 40 {angstrom}), the onset of capillary condensation can be controlled, and from here the point of achieving liquid-like fluid density in the pores. Such a unique characteristic makes the MCM-41 family of materials a potential media for sorptive fractionation.
- Sponsoring Organization:
- Link Foundation (United States); USDOE, Washington, DC (United States)
- OSTI ID:
- 571960
- Report Number(s):
- CONF-961202--; ISBN 1-55899-358-4
- Country of Publication:
- United States
- Language:
- English
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