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This paper investigates the trace element content of calcium oxide sorbent after repeated cycles of calcination and carbonation in the presence of fuel combustion during the calcination step. The trace element content of the sorbent was measured using ICP-OES after a wet acid digestion procedure. The weight % of alite, the cement phase responsible for short-term strength of the cement, has been measured...
Calcium oxide has been proposed as a regenerable sorbent for separating CO 2 from flue gas at high temperatures. It is well known that natural sorbents (i.e., CaO derived from natural limestone) lose their capture capacity as the number of the carbonation/calcination cycles increases. If the behaviour of the sorbent can be improved (i.e., the decay in reactivity of sorbent reduced or residual...
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