2008
DOI: 10.1021/ie8009318
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Modeling of the Deactivation of CaO in a Carbonate Loop at High Temperatures of Calcination

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Cited by 71 publications
(44 citation statements)
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References 25 publications
(65 reference statements)
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“…2 is expected to be operating above 900 ºC at 101 kPa CO 2 . There is also a contribution of reactive sintering that is particular to cycling experiments (Gonzalez et al, 2008). CaO has a very strong affinity to SO 2 and will readily form CaSO 4 in the oxidising conditions expected in post-combustion systems (see Eq.…”
mentioning
confidence: 99%
“…2 is expected to be operating above 900 ºC at 101 kPa CO 2 . There is also a contribution of reactive sintering that is particular to cycling experiments (Gonzalez et al, 2008). CaO has a very strong affinity to SO 2 and will readily form CaSO 4 in the oxidising conditions expected in post-combustion systems (see Eq.…”
mentioning
confidence: 99%
“…For instance, in the first cycle, the maximum CO2 capture capacity was around 0.42 gram of CO2 per gram of waste and in the fifth cycle, it was only about 0.23. Previous studies investigating CO2 capture with the same type of materials also show the decay in the maximum capture capacity along the cycles (Grasa and Abanades, 2006;González et al, 2008). Usually this decline in the CO2 capture capacities is attributed to the sintering phenomena (Abanades and Alvarez, 2003;Symonds et al, 2009) which becomes more noticeable with each cycle and is enhanced by increasing calcination temperatures (Borgwardt, 1989).…”
Section: Resultsmentioning
confidence: 82%
“…Despite low costs, CaO-based sorbents show a fast deactivation and a decrease in their CO2 capture capacity over reaction cycles because of sintering phenomena, crystal growth and pore blocking during the calcination step (Abanades and Alvarez, 2003;Symonds et al, 2009;Grasa and Abanades, 2006;González et al, 2008;Manovic et al, 2009;Kuramoto, 2003). Previous studies show that high calcination temperatures accelerate this deactivation process (Grasa and Abanades, 2006;González et al, 2008).…”
Section: Introductionmentioning
confidence: 99%
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“…Outros autores, como Abanades e Alvarez (2003), também verificaram que a conversão da carbonatação diminui com o passar dos ciclos de reações, para todas as condições analisadas. González et al (2008) observaram que, até para temperaturas moderadas, abaixo de 950°C, a capacidade de captura diminui rapidamente ao longo dos ciclos, mas para temperaturas acima de 950°C essa queda é mais pronunciada, devido ao aumento sinterização.…”
Section: Capacidade De Capturaunclassified