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High Capacity Thermally Regenerated Supported Amine Sorbents for CO 2 Removal
Technical Paper
2004-01-2443
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this study, a parametric examination of the main factors affecting cyclic CO2 absorption into supported amine sorbents has been conducted. A bench-scale test apparatus and Taguchi statistical design of experiments were used to assess the importance of cycle time, inlet CO2 concentration, residence time, humidity, absorption temperature, desorption temperature and desorption pressure on cyclic CO2 capacity. Two amine sorbents were considered: TEPAN and modified E-100. Amine decomposition, amine oxidation, and the effects of amine chemical composition were also examined. For typical ranges of system variables found on-board the space shuttle orbiter, results indicated that desorption pressure over the range of 25–85 torr, desorption temperature over the range of 50–60°C, absorption temperature over the range of 20–30°C, and CO2 concentration over the range of 6–9 mmHg were the most important variables affecting cyclic CO2 removal capacity. Cycle time, dew point, and residence time were found to be insignificant over the ranges considered. Desorption pressure was found to account for 61% of the variation in the cyclic capacity of CO2 for TEPAN and 82% for E-100. Desorption temperature and absorption temperature accounted for 19% and 6%, respectively, for TEPAN. Desorption temperature and inlet CO2 concentration accounted for 8% and 9%, respectively for E-100.
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Citation
Schladt, M., Helble, J., and Filburn, T., "High Capacity Thermally Regenerated Supported Amine Sorbents for CO2 Removal," SAE Technical Paper 2004-01-2443, 2004, https://doi.org/10.4271/2004-01-2443.Also In
References
- Birbara, Philip, Nalette, Timothy. “Regenerable Supported Amine-Polyol Sorbent.” Dec. 11 1992
- Filburn, T. Ph.D. Thesis Department of Chemical Engineering, University of Connecticut 2002
- Gentry, G. Kay, R. “Space Station Freedom Carbon Dioxide Removal Flight Design,” SAE 932108 , Presented at 23 rd Int’l Conf. On Environmental Systems July 1993