Sodium-based dry regenerable sorbent for carbon dioxide capture from power plant flue gas / Joong B. Lee in Industrial & engineering chemistry research, Vol. 47 N° 13 (Juillet 2008)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 47 N° 13 (Juillet 2008) . - p. 4465–4472 Titre : Sodium-based dry regenerable sorbent for carbon dioxide capture from power plant flue gas Type de document : texte imprimé Auteurs : Joong B. Lee, Auteur ; Chong K. Ryu, Auteur ; Jeom-In Baek, Auteur ; Ji H. Lee, Auteur Année de publication : 2008 Article en page(s) : p. 4465–4472 Note générale : Bibliogr. p. 4471-4472 Langues : Anglais (eng) Mots-clés : Dry regenerable sorbent -- sodium  Spray-drying techniques  CO2 capture Résumé : Dry regenerable sorbent technology is one of the emerging technologies as a cost-effective and energy-efficient technology for CO2 capture from flue gas. Six sodium-based dry regenerable sorbents were prepared by spray-drying techniques. Their physical properties and reactivities were tested to evaluate their applicability to a fluidized-bed or fast transport-bed CO2 capture process. Each sorbents contained 20−50 wt% of Na2CO3 or NaHCO3. All sorbents except for Sorb NX30 were insufficient with either attrition resistance or reactivity, or both properties. Sorb NX30 sorbent satisfied most of the physical requirements for a commercial fluidized-bed reactor process along with good chemical reactivity. Sorb NX30 sorbent had a spherical shape, an average size of 89 μm, a size distribution of 38−250 μm, and a bulk density of approximately 0.87 g/mL. The attrition index (AI) of Sorb NX30 reached below 5% compared to about 20% for commercial fluidized catalytic cracking (FCC) catalysts. CO2 sorption capacity of Sorb NX30 was approximately 10 wt % (>80% sorbent utilization) in the simulated flue gas condition compared with 6 of 30 wt % MEA solution (33% sorbent utilization). All sorbents showed almost-complete regeneration at temperatures less than 120 °C. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0709638 [article] Sodium-based dry regenerable sorbent for carbon dioxide capture from power plant flue gas [texte imprimé] / Joong B. Lee, Auteur ; Chong K. Ryu, Auteur ; Jeom-In Baek, Auteur ; Ji H. Lee, Auteur . - 2008 . - p. 4465–4472. Bibliogr. p. 4471-4472 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 13 (Juillet 2008) . - p. 4465–4472 Mots-clés : Dry regenerable sorbent -- sodium  Spray-drying techniques  CO2 capture Résumé : Dry regenerable sorbent technology is one of the emerging technologies as a cost-effective and energy-efficient technology for CO2 capture from flue gas. Six sodium-based dry regenerable sorbents were prepared by spray-drying techniques. Their physical properties and reactivities were tested to evaluate their applicability to a fluidized-bed or fast transport-bed CO2 capture process. Each sorbents contained 20−50 wt% of Na2CO3 or NaHCO3. All sorbents except for Sorb NX30 were insufficient with either attrition resistance or reactivity, or both properties. Sorb NX30 sorbent satisfied most of the physical requirements for a commercial fluidized-bed reactor process along with good chemical reactivity. Sorb NX30 sorbent had a spherical shape, an average size of 89 μm, a size distribution of 38−250 μm, and a bulk density of approximately 0.87 g/mL. The attrition index (AI) of Sorb NX30 reached below 5% compared to about 20% for commercial fluidized catalytic cracking (FCC) catalysts. CO2 sorption capacity of Sorb NX30 was approximately 10 wt % (>80% sorbent utilization) in the simulated flue gas condition compared with 6 of 30 wt % MEA solution (33% sorbent utilization). All sorbents showed almost-complete regeneration at temperatures less than 120 °C. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0709638

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