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The retention of SO 2 on CaO/activated carbon sorbents is studied. The effect of several variables such as the reaction temperature, partial pressure of SO 2 for different calcium loads, and O 2 presence are analysed. Additionally, the regeneration and reutilization of spent sorbents is investigated. In all cases presence of well-dispersed CaO in the sorbents improves SO ...
Sorbents for SO 2 retention at low temperature consisting of CaO supported on activated carbons have been prepared by different methods (physical mixing, incipient wetness impregnation, rotary evaporator impregnation, complex formation and ionic exchange). Ca(OH) 2 , CaCO 3 , CaO, Ca(CH 3 COO) 2 and Ca(C 2 H 5 COO) 2 have been used as...
The combined removal of both SO 2 and NO x from a gas mixture that contains NO x , SO 2 , O 2 , and N 2 was carried out in a dual bed of calcium-containing pellets and potassium-containing coal-pellets. The calcium-containing pellets retain SO 2 and nitrogen oxides are reduced to N 2 by the potassium-containing coal-pellets. The NO ...
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