Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/31907
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dc.creatorCorrêa, Luciano Jacob-
dc.creatorBadino, Alberto Colli-
dc.creatorCruz, Antonio José Gonçalves-
dc.date.accessioned2018-11-23T12:13:42Z-
dc.date.available2018-11-23T12:13:42Z-
dc.date.issued2016-02-
dc.identifier.citationCORRÊA, L. J.; BADINO, A. C.; CRUZ, A. J. G. Mixing design for enzymatic hydrolysis of sugarcane bagasse: methodology for selection of impeller configuration. Bioprocess and Biosystems Engineering, Berlin, v. 39, n. 2, p. 285-294, Feb. 2016.pt_BR
dc.identifier.urihttps://link.springer.com/article/10.1007%2Fs00449-015-1512-6pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/31907-
dc.description.abstractOne of the major process bottlenecks for viable industrial production of second generation ethanol is related with technical–economic difficulties in the hydrolysis step. The development of a methodology to choose the best configuration of impellers towards improving mass transfer and hydrolysis yield together with a low power consumption is important to make the process cost-effective. In this work, four dual impeller configurations (DICs) were evaluated during hydrolysis of sugarcane bagasse (SCB) experiments in a stirred tank reactor (3 L). The systems tested were dual Rushton turbine impellers (DIC1), Rushton and elephant ear (down-pumping) turbines (DIC2), Rushton and elephant ear (up-pumping) turbines (DIC3), and down-pumping and up-pumping elephant ear turbines (DIC4). The experiments were conducted during 96 h, using 10 % (m/v) SCB, pH 4.8, 50 °C, 10 FPU/gbiomass, 470 rpm. The mixing time was successfully used as the characteristic parameter to select the best impeller configuration. Rheological parameters were determined using a rotational rheometer, and the power consumptions of the four DICs were on-line measured with a dynamometer. The values obtained for the energetic efficiency (the ratio between the cellulose to glucose conversion and the total energy) showed that the proposed methodology was successful in choosing a suitable configuration of impellers, wherein the DIC4 obtained approximately three times higher energetic efficiency than DIC1. Furthermore a scale-up protocol (factor scale-up 1000) for the enzymatic hydrolysis reactor was proposed.pt_BR
dc.languageen_USpt_BR
dc.publisherSpringerpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceBioprocess and Biosystems Engineeringpt_BR
dc.subjectBioethanolpt_BR
dc.subjectMixing timept_BR
dc.subjectRheologypt_BR
dc.subjectPower consumptionpt_BR
dc.subjectScale-uppt_BR
dc.subjectBioetanolpt_BR
dc.subjectTempo de misturapt_BR
dc.subjectReologiapt_BR
dc.subjectConsumo de energiapt_BR
dc.subjectAumento de escalapt_BR
dc.titleMixing design for enzymatic hydrolysis of sugarcane bagasse: methodology for selection of impeller configurationpt_BR
dc.typeArtigopt_BR
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