Simulation of Dynamic Pressure-Swing Gas Sorption in Polymers
| dc.contributor.advisor | Barbari, Timothy A | en_US |
| dc.contributor.author | St. Pierre, Heather | en_US |
| dc.contributor.department | Chemical Engineering | en_US |
| dc.contributor.publisher | Digital Repository at the University of Maryland | en_US |
| dc.contributor.publisher | University of Maryland (College Park, Md.) | en_US |
| dc.date.accessioned | 2005-08-03T14:34:26Z | |
| dc.date.available | 2005-08-03T14:34:26Z | |
| dc.date.issued | 2005-04-29 | en_US |
| dc.description.abstract | A transport model was developed to simulate a dynamic pressure-swing sorption process that separates binary gas mixtures using a packed bed of non-porous spherical polymer particles. The model was solved numerically using eigenfunction expansion, and its accuracy verified by the analytical solution for mass uptake from a finite volume. Results show the process has a strong dependence on gas solubility. The magnitudes and differences in gas diffusivities have the greatest effect on determining an optimal particle radius, time to attain steady-state operation, and overall cycle time. Sorption and transport parameters for three different polyimides and one copolyimide were used to determine the degree of separation for CO2/CH4 and O2/N2 binary gas mixtures. The separation results for this process compare favorably to those for membrane separation using the same polymer, and significantly improved performance when a second stage is added to the pressure-swing process. | en_US |
| dc.format.extent | 507337 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | http://hdl.handle.net/1903/2512 | |
| dc.language.iso | en_US | |
| dc.subject.pqcontrolled | Engineering, Chemical | en_US |
| dc.title | Simulation of Dynamic Pressure-Swing Gas Sorption in Polymers | en_US |
| dc.type | Thesis | en_US |
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