Gasification and combustion of the footwear leather wastes / Marcelo Godinho in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 6 (06/2007)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CII, N° 6 (06/2007) . - p. 182-190 Titre : Gasification and combustion of the footwear leather wastes Type de document : texte imprimé Auteurs : Marcelo Godinho, Auteur ; N. R. Marcilio, Auteur ; A. C. Faria Vilela, Auteur ; L. Masotti, Auteur ; C. B. Martins, Auteur Année de publication : 2007 Article en page(s) : p. 182-190 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : One of the great technological challenges of this century is to identify alternative energy sources. The utilization of leather wastes (biomass) to generate energy becomes interesting due to its heating value, as well as for the characteristics of the ash generated, which could be used in other processes such as the production of basic chromium sulfate. Resulting from a partnership between research agencies and private businesses, a semi-pilot unit (350 kWth) was designed and built to process leather wastes. The operation of this semi-pilot unit started in August, 2003. During this period, approximately 200 tons of wastes were treated in over 2,500 h of processing. The semi-pilot unit consists basically of a stratified downdraft gasifier, an oxidation reactor and an air pollution control system (APC). In this paper, the gasifier’s emissions were evaluated and the ash and the flue gas were characterized. En ligne : https://drive.google.com/file/d/1zuYpPOr1b972JNgdL98DDY_Ei93Rho3K/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3352 [article]

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Kinetic parameters for the reactions of leather shavings with oxygen and carbon dioxide / Marcelo Godinho in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 6 (06/2007)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CII, N° 6 (06/2007) . - p. 175-181 Titre : Kinetic parameters for the reactions of leather shavings with oxygen and carbon dioxide Type de document : texte imprimé Auteurs : Marcelo Godinho, Auteur ; M. A. Lansarin, Auteur ; N. R. Marcilio, Auteur Année de publication : 2007 Article en page(s) : p. 175-181 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : tests were carried out in a thermobalance using carbon from leather shavings char, under isothermal conditions and atmospheric pressure. The experimental results showed a good fit with the Shrinking Unreacted-Core model controlled by chemical reaction, and the Progressive-Conversion model did not describe the process. According to Shrinking Unreacted-Core model, the reaction initially occurs on the external surface of the particle and the reaction zone moves toward the center of the particle, leaving behind a layer of inert solid (ash). On the other hand, in the Progressive-Conversion model reaction occurs simultaneously in the entire volume of the particle. The activation energies of the C-O2 and C-CO2 reactions were determinate, as well as their reaction orders. En ligne : https://drive.google.com/file/d/1N8vj6DQBfzWMHepEN1LWibPEN8CLyJ6N/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3351 [article]

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