分段导数分析法用于苯胺甲醛缩合反应过程综合

doi:10.3969/j.issn.0438-1157.2014.03.030

化工学报 ›› 2014, Vol. 65 ›› Issue (3): 976-980.DOI: 10.3969/j.issn.0438-1157.2014.03.030

分段导数分析法用于苯胺甲醛缩合反应过程综合

李玉龙, 胡仰栋, 伍联营

中国海洋大学化学化工学院, 山东青岛 266100

收稿日期:2013-05-22 修回日期:2013-08-26 出版日期:2014-03-05 发布日期:2014-03-05
通讯作者: 胡仰栋
作者简介:李玉龙（1988—），女，硕士研究生。
基金资助:
国家自然科学基金项目（51076034，11175050）；中央高校基本科研基金项目（HEUCFZ1122）。

Application of piecewise derivative analysis in process synthesis of aniline and formaldehyde condensation reaction

LI Yulong, HU Yangdong, WU Lianying

School of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, Shandong, China

Received:2013-05-22 Revised:2013-08-26 Online:2014-03-05 Published:2014-03-05
Supported by:
supported by the National Natural Science Foundation of China(51076034, 11175050).

摘要/Abstract

摘要： 苯胺甲醛缩合制多胺的反应是典型的第Ⅲ类反应体系，反应过程复杂。针对反应的阶段性特征，采用分段导数分析法对其进行反应器网络综合，第一阶段应采用DSR或PFR；第二阶段应采用PFR。采用不同的流程结构进行试验，结果为：采用DSR+PFR的流程结构，最终产品中二氨基二苯甲烷（MDA）含量最高；采用PFR+PFR的流程结构，最终产品中二氨基二苯甲烷（MDA）含量次之。试验结果与导数分析法分析结果一致，表明本文所用方法是有效的。

关键词: 分段导数分析, 多胺制造, 二氨基二苯甲烷, 过程综合, 过程系统, 动力学, 优化

Abstract: Synthesis of polyamine from aniline and formaldehyde is a typical type Ⅲ reaction system, so the reaction process is complex. In view of the stage characteristics of type Ⅲ reaction system, piecewise derivative analysis was used to solve the problem of its reactor network synthesis. Differential side-stream reactor(DSR) or plug flow reactor (PFR) should be used in the first reaction stage and PFR should be used in the second reaction stage. A series of experiments with different process structures were done, and the results were compared with theoretical analysis. The results of the experiments showed that the amount of methylenedianiline (MDA) was the highest with the structure of DSR and PFR. The amount of MDA was the second highest with the structure of PFR and PFR. The experimental results were consistent with the piecewise derivative analysis results, indicating the effectiveness of piecewise derivative analysis.

Key words: piecewise derivative analysis, polyamine manufacturing, MDA, process synthesis, process systems, kinetics, optimization

中图分类号:

TQ021.8

李玉龙, 胡仰栋, 伍联营. 分段导数分析法用于苯胺甲醛缩合反应过程综合[J]. 化工学报, 2014, 65(3): 976-980.

LI Yulong, HU Yangdong, WU Lianying. Application of piecewise derivative analysis in process synthesis of aniline and formaldehyde condensation reaction[J]. CIESC Journal, 2014, 65(3): 976-980.

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分段导数分析法用于苯胺甲醛缩合反应过程综合

Application of piecewise derivative analysis in process synthesis of aniline and formaldehyde condensation reaction

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