Coagulation/flocculation treatments for flue-gas-derived water from oxyfuel power production with CO2 capture / Sivaram Harendra in Industrial & engineering chemistry research, Vol. 50 N° 17 (Septembre 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 17 (Septembre 2011) . - pp. 10335-10343 Titre : Coagulation/flocculation treatments for flue-gas-derived water from oxyfuel power production with CO2 capture Type de document : texte imprimé Auteurs : Sivaram Harendra, Auteur ; Danylo Oryshchyn, Auteur ; Thomas Ochs, Auteur Année de publication : 2011 Article en page(s) : pp. 10335-10343 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Carbon dioxide Production Gaseous effluent Flocculation Coagulation Résumé : Capturing CO2 from fossil fuel combustion provides an opportunity for tapping a significant water source that can be used as service water for a capture-ready power plant and its peripherals: more than 5% of the mass of water required for cooling-tower makeup in an oxy-fired plant employing integrated pollutant removal (IPR) for capture. Water condensed from oxycombustion flue gas by the National Energy Technology Laboratory's (NETL's) integrated pollutant removal (IPR) CO2-capture process has been analyzed for composition, and an approach for its treatment, for both in-process reuse and release, has been outlined. Experiments were performed to develop specifications for the first step (coagulation/flocculation) of this treatment approach. The results show that flocculation can remove most cations and reduce fine particulates by at least 90%. The speed of separation points to fast, in-line treatment of water for reuse within IPR, thus minimizing the water requirements for CO2 capture. In experiments, flocculation/coagulation removed few of the anions from solution. However, the remaining supernatant is amenable to reverse osmosis, crystallization, and ion-exchange processes for anion removal and cleanup of the remaining cations. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24483679 [article] Coagulation/flocculation treatments for flue-gas-derived water from oxyfuel power production with CO2 capture [texte imprimé] / Sivaram Harendra, Auteur ; Danylo Oryshchyn, Auteur ; Thomas Ochs, Auteur . - 2011 . - pp. 10335-10343. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 17 (Septembre 2011) . - pp. 10335-10343 Mots-clés : Carbon dioxide Production Gaseous effluent Flocculation Coagulation Résumé : Capturing CO2 from fossil fuel combustion provides an opportunity for tapping a significant water source that can be used as service water for a capture-ready power plant and its peripherals: more than 5% of the mass of water required for cooling-tower makeup in an oxy-fired plant employing integrated pollutant removal (IPR) for capture. Water condensed from oxycombustion flue gas by the National Energy Technology Laboratory's (NETL's) integrated pollutant removal (IPR) CO2-capture process has been analyzed for composition, and an approach for its treatment, for both in-process reuse and release, has been outlined. Experiments were performed to develop specifications for the first step (coagulation/flocculation) of this treatment approach. The results show that flocculation can remove most cations and reduce fine particulates by at least 90%. The speed of separation points to fast, in-line treatment of water for reuse within IPR, thus minimizing the water requirements for CO2 capture. In experiments, flocculation/coagulation removed few of the anions from solution. However, the remaining supernatant is amenable to reverse osmosis, crystallization, and ion-exchange processes for anion removal and cleanup of the remaining cations. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24483679

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