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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/29712


    Title: Vapor-liquid equilibrium measurement and data treatment of n-propanol and isobutanol mixture at atmospheric pressure
    Authors: Hsu,HL;Lee,LS
    Contributors: 化學工程與材料工程學系
    Keywords: MAXIMUM-LIKELIHOOD PRINCIPLE;BINARY INTERACTION PARAMETERS;VLE DATA;EQUATIONS;MODELS;STATE;REDUCTION
    Date: 1998
    Issue Date: 2010-06-30 14:22:40 (UTC+8)
    Publisher: 中央大學
    Abstract: The measurement of vapor-liquid equilibrium of n-propanol and isobutanol binary mixture was carried out in a condensed vapor phase recirculating still at atmospheric pressure. The experimental data were checked by Herington consistency test and chi-square distribution of statistics. The correlation results showed that van Laar equation was the most suitable model to describe the VLE behavior of this mixture and that the absolute correlation coefficient of the pair parameters of model is near to unity. This says that the model parameters are linearly related to each other and this mixture behaves like a regular solution. The experimental points with large residuals were deleted from the data set. The F-distribution test of statistics was then applied to judge whether the new data-set could better describe phase behavior of mixture than the previous set. The statistical chi-square analysis was also applied to determine whether the estimated variance of fit used for objective function was reasonable. The data treatment applied in this study was different from that applied to isoprene and n-pentane mixture in our previous paper (Lee et al., 1994) where the T-x diagram was used to delete the experimental points with systematic error.
    Relation: CHEMICAL ENGINEERING COMMUNICATIONS
    Appears in Collections:[化學工程與材料工程研究所] 期刊論文

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