Abstract
AbstractA 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 technique ‐ photofragment fluorescence ‐ enables 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 analytical technique is described.
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