http://www.cnr.it/ontology/cnr/individuo/prodotto/ID293422
Magnetite loaded carbon fine particles as low-cost CO2 adsorbent in a sound assisted fluidized bed (Articolo in rivista)
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- Label
- Magnetite loaded carbon fine particles as low-cost CO2 adsorbent in a sound assisted fluidized bed (Articolo in rivista) (literal)
- Anno
- 2015-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.proci.2014.06.037 (literal)
- Alternative label
M. Alfe, P. Ammendola, V. Gargiulo, F. Raganati, R. Chirone (2015)
Magnetite loaded carbon fine particles as low-cost CO2 adsorbent in a sound assisted fluidized bed
in Proceedings of the Combustion Institute
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- M. Alfe, P. Ammendola, V. Gargiulo, F. Raganati, R. Chirone (literal)
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- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Istituto di Ricerche sulla Combustione (IRC)-CNR
Universita` degli Studidi Napoli Federico II, Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale (literal)
- Titolo
- Magnetite loaded carbon fine particles as low-cost CO2 adsorbent in a sound assisted fluidized bed (literal)
- Abstract
- CO2 adsorption with solid sorbents is one of the most promising options for post-combustion CO2 capture
strategies. Typical post-combustion flue-gas conditions are CO2 1-15% vol. and atmospheric pressure
and the performances of solid sorbents under typical flue gas conditions have been poorly investigated. In
that condition the CO2 uptake capacity is influenced primarily by material functionality effects rather than
material pore metrics so materials with a distinctive surface chemistry (presence of activated surface atoms
or sites) could find applications in adsorption technologies. Hence the sorbent selection became a key
point because the materials should be convenient from the economic point of view but versatile in postcombustion
conditions. Recent studies of CO2 adsorption on low-cost iron metal oxide surfaces strongly
encourage the possible use of metal oxide as sorbents, but the tendency of magnetite particles to agglomerate
causes a lowering of CO2 uptake capacity. The dispersion of magnetite nanoparticles on carbonaceous
matrix appears to be a promising strategy to overcome this shortcoming. This work investigates
the adsorption behavior of CO2 on composite materials prepared coating a low-cost commercial carbon
black (CB) with magnetite fine particles. The CO2 capture capacity of composites produced at different
CB load was evaluated on the basis of the breakthrough times measured at atmospheric pressure and room
temperature in a lab-scale fixed bed micro-reactor. A CB-FM composite has been selected to verify the
possibility of carrying out a two-stage operation and the thermochemical stability in a sound assisted fluidized
bed. To this aim the reactor has been firstly operated for CO2 adsorption and then for regeneration.
The effect of multiple cycles of adsorption and desorption steps has been also quantified. (literal)
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