Detection and Removal of Vapour Phase Alkali Species from Hot Coal-Derived Gases
✍ Scribed by Griffin, P. G.; Campisi, A.; Morrison, R. J. S.; Chadwick, B. L.
- Publisher
- Curtin University of Technology
- Year
- 2008
- Tongue
- English
- Weight
- 600 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0969-1855
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✦ Synopsis
A high pressure, high temperature apparatus has been developed for the analysis of sorbents capable of removing alkali compounds to the concentration levels required by advanced, coal-fired power generating systems. The reactor is capable of operating at temperatures up to 1200°C and pressures up to 2.0 MPa. A laser-based techniquephotofragment fluorescenceenables in-situ analysis of the sodium content in a gas stream before and after a sorbent bed thereby determining the efficiency of the alkali removal by the various sorbents studied (typically aluminosilicate clays). The design and development of both the reactor and the laser-based analvtical technique is described.