对苯二甲酸加氢精制反应宏观动力学的研究  

Macro-Kinetics of Hydrofining of Terephthalic Acid

作　　者：周立进[1] 王振新[2] 纪磊 曾崇余[1] 任晓乾[1] 

机构地区：[1]南京工业大学化学化工学院,江苏南京210009 [2]扬子石油化工股份有限公司科技信息部,江苏南京210048

出　　处：《石油化工》2005年第3期242-246,共5页Petrochemical Technology

摘　　要：在1L不锈钢高压搅拌反应釜中,研究了粗对苯二甲酸在进口原颗粒(4～8目)Pd/C催化剂存在下的加氢精制反应宏观动力学。在排除液固间传质阻力的前提下,测定了在不同反应温度、氢分压和对苯二甲酸初始含量等条件下的动力学数据,按照气液固三相反应的原理,提出了宏观动力学方程。由测定的动力学数据,对宏观动力学方程中的参数进行估值,建立了对苯二甲酸加氢精制宏观反应动力学模型,模型计算值与实验测定值拟合良好。Macro-kinetics of hydrofining of terephthalic acid on Pd/C catalyst (4-8 mesh) was investigated in a 1 L stirred autoclave. Kinetic data were measured at different temperatures, hydrogen partial pressures, p-carboxy benzaldehyde (4-CBA) concentrations and free of liquid-solid mass transfer resistance. A kinetic model had been developed under the guiding principle of gas-liquid-solid three phase reaction. After parameter estimation, a rational model, conformed well with experimental data, was obtained. The average deviation was 7.2%.

关 键 词：对苯二甲酸 加氢精制 宏观动力学 钯/炭催化剂 

分 类 号：TQ013.2[化学工程]