Novel Macrokinetic Model for Industrial Hydrogenation Purifying of Terephthalic Acid

作者： | Chunping Hu, Xuefeng Yan |

刊名： | Chemical Product and Process Modeling, 2008, Vol.3 (1) |

中文刊名： | 化学产品和工艺建模, 2008, Vol.3 (1) |

来源数据库： | Berkeley Electronic Journal |

关键词： | terephthalic acid; hydrogenation purifying; partial least squares regression; macrokinetic model; differential evolution algorithm; |

英文摘要： | A novel macrokinetic model is proposed for the hydrogenation purifying of terephthalic acid (HPTA), which is catalyzed by Pd/C in an industrial trickle-bed reactor (TBR). First, the reaction orders of HPTA are estimated by the mass transfer-free experiment data in the laboratory stirred batch reactor (SBR). The hydrogenation reaction kinetics is assumed to be first-order with respect to 4-carboxybenzaldehyde (4-CBA), which is the most important contamination of terephthalic acid and hydrogenated to produce p-toluic acid. Second, due to the fact that the reaction factors of HPTA have a high-nonlinear and complex effect on the reaction rate constant of HPTA, the nonlinear partial least squares regression method was used to model the influence of the reaction factors on the rate constant... |