CO2 SELECTIVE CERAMIC MEMBRANE FOR WATER-GAS SHIFT REACTION WITH CONCOMITANT RECOVERY OF CO2
Presently we have focused on the membrane synthesis, hydrotalcite surface and transport mechanism characterization, and quantitative measurement on CO{sub 2} reversibility. This quarterly report presents the results from the surface characterization study. FTIR, DRIFTS and TGA/MS have been used to quantitatively characterize the thermal behavior of hydrotalcite materials. Based upon these characterization results, a thermal evolution pattern accounting for the loss of interlayer water, hydroxyl group, and CO{sub 2} is proposed for the hydrotalcite we studied. According to the DRIFTS results, a small amount of CO{sub 2} release ({approximately}2wt%) was observed at {approximately}220 C, while the remaining releases at {approximately}450 C. TGA/MS result is consistent with the amount and the temperature region estimated from DRIFTS. Both regions are possible candidates for transport of CO{sub 2} in a membrane configuration. In the next quarter, we will conduct adsorption/desorption study to verify the reversibility of the CO{sub 2} released from these two regions.
- Research Organization:
- Federal Energy Technology Center Morgantown (FETC-MGN), Morgantown, WV (United States); Federal Energy Technology Center Pittsburgh (FETC-PGH), Pittsburgh, PA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- FC26-00NT40922
- OSTI ID:
- 784609
- Report Number(s):
- FC26-00NT40922-05; TRN: AH200129%%191
- Resource Relation:
- Other Information: PBD: 19 Jul 2001
- Country of Publication:
- United States
- Language:
- English
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CO2 SELECTIVE CERAMIC MEMBRANE FOR WATER-GAS SHIFT REACTION WITH CONCOMITANT RECOVERY OF CO2
CO2 SELECTIVE CERAMIC MEMBRANE FOR WATER-GAS SHIFT REACTION WITH CONCOMITANT RECOVERY OF CO2