Supercritical CO2 extraction of essential oil from orange peel; effect of the height of the bed

作者: A Berna , A Tárrega , M Blasco , S Subirats

DOI: 10.1016/S0896-8446(00)00082-6

关键词: Supercritical fluid extractionSupercritical carbon dioxideDragCarbon dioxideMechanicsEssential oilFluid dynamicsMineralogyChemistryOrange (colour)Mass transfer

摘要: Abstract The influence of the height particle bed on kinetics supercritical fluid extraction (SFE) essential oil from orange peel is analyzed in this article. Peel dehydrated oranges satsuma and naveline cultivars was used. A series experiments were designed wherein, for same conditions, varied widely. These also carried out different scales with volumes 0.5 5 l. results interpreted using Sovova's extended flow model as has been done previous studies. bibliography indicates that a number phenomena may distort process. One these formation masses particles, due to their content, which increases resistance mass transfer inside particle. However, phenomenon barely noticeable our experiments. Also, some reordering particles take place differing densities two phases certain drag effect exercised by fluid. This situation can cause lack homogeneity fluid, further reducing effectiveness In cultivar, where bed-height range broader, base diatomaceous earth added extractor order reduce flow. Very similar behavior found all we can, therefore, conclude there homogeneous very little effect, at least scale operation.

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