This paper analyses and compares the results of accelerated carbonation experiments for CO(2) storage carried out on the air pollution control (APC) residues of a waste incineration plant, via both the dry and the wet route. The two routes achieved a similar maximum calcium conversion to carbonates (around 65%) corresponding to a potential CO(2) storage capacity of 250 g/kg residues. For the dry route, maximum conversion was achieved in a few minutes at 400 C under a 10% CO(2) atmosphere, whereas for the wet route it was obtained in about 10 minutes under a 100% CO(2) atmosphere, with a liquid to solid ratio of 0.2, at 30 degrees C and 3 bar, or without water addition at 50 degrees C. These results suggest that carbonation of APC residues, and possibly of other combustion residues, through either the dry or wet route, may be effectively applied for CO(2) storage, at least in the niche market of waste incineration. (C) 2008 Elsevier Ltd. All rights reserved
Comparison of different reaction routes for carbonation of APC residues / Renato, Baciocchi; Giulia, Costa; Polettini, Alessandra; Pomi, Raffaella; Valentina, Prigiobbe. - In: ENERGY PROCEDIA. - ISSN 1876-6102. - 1:1(2009), pp. 4851-4858. (Intervento presentato al convegno 9th International Conference on Greenhouse Gas Control Technologies tenutosi a Washington, DC nel NOV 16-20, 2008) [10.1016/j.egypro.2009.02.313].
Comparison of different reaction routes for carbonation of APC residues
POLETTINI, Alessandra;POMI, Raffaella;
2009
Abstract
This paper analyses and compares the results of accelerated carbonation experiments for CO(2) storage carried out on the air pollution control (APC) residues of a waste incineration plant, via both the dry and the wet route. The two routes achieved a similar maximum calcium conversion to carbonates (around 65%) corresponding to a potential CO(2) storage capacity of 250 g/kg residues. For the dry route, maximum conversion was achieved in a few minutes at 400 C under a 10% CO(2) atmosphere, whereas for the wet route it was obtained in about 10 minutes under a 100% CO(2) atmosphere, with a liquid to solid ratio of 0.2, at 30 degrees C and 3 bar, or without water addition at 50 degrees C. These results suggest that carbonation of APC residues, and possibly of other combustion residues, through either the dry or wet route, may be effectively applied for CO(2) storage, at least in the niche market of waste incineration. (C) 2008 Elsevier Ltd. All rights reservedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
