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Fouling rate of calcium carbonate on the surface of sieve trays / Zhou, Aidong in Industrial & engineering chemistry research, Vol. 49 N° 2 (Janvier 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 2 (Janvier 2010) . - pp 870–875 Titre : Fouling rate of calcium carbonate on the surface of sieve trays Type de document : texte imprimé Auteurs : Zhou, Aidong, Auteur ; Zhang, Zhibing, Auteur Année de publication : 2010 Article en page(s) : pp 870–875 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Calcium  Carbonate  Stimulating  stage  Declining  stage  Fouling  process. Résumé : Fouling caused by the precipitation of calcium carbonate on the surfaces of sieve trays made of four kinds of materials was studied in a 100 mm diameter column. Tests were carried out within a Ca(OH)2−H2O−CO2−air system in the absence of impurity ions or inhibitors. The effects of suspension concentration, temperature, CO2-inlet concentration, F-factor, time, and tray material on the fouling rate were determined. XRD and SEM morphology showed that the fouling crystal is calcite. Experiments indicated that the whole fouling process mainly consisted of three rate stages, called the “stimulating stage - the first stage”, “declining stage - the second stage”, and “steady stage - the third stage”, respectively. On the basis of the experimental data, numerical equations describing the fouling process of the four trays are established and subsequently used to predict the fouling rates of the trays made of different materials. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900318c [article] Fouling rate of calcium carbonate on the surface of sieve trays [texte imprimé] / Zhou, Aidong, Auteur ; Zhang, Zhibing, Auteur . - 2010 . - pp 870–875. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 2 (Janvier 2010) . - pp 870–875 Mots-clés : Calcium  Carbonate  Stimulating  stage  Declining  stage  Fouling  process. Résumé : Fouling caused by the precipitation of calcium carbonate on the surfaces of sieve trays made of four kinds of materials was studied in a 100 mm diameter column. Tests were carried out within a Ca(OH)2−H2O−CO2−air system in the absence of impurity ions or inhibitors. The effects of suspension concentration, temperature, CO2-inlet concentration, F-factor, time, and tray material on the fouling rate were determined. XRD and SEM morphology showed that the fouling crystal is calcite. Experiments indicated that the whole fouling process mainly consisted of three rate stages, called the “stimulating stage - the first stage”, “declining stage - the second stage”, and “steady stage - the third stage”, respectively. On the basis of the experimental data, numerical equations describing the fouling process of the four trays are established and subsequently used to predict the fouling rates of the trays made of different materials. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900318c