丁醛异构物塔产品结构的优化研究

Research on Product Mix Optimization of Butyraldehyde Isomer Column

以天津渤化永利化工股份有限公司#1丁辛醇装置中丁醛异构物塔的产品结构优化为研究目标,利用Aspen Plus软件对丁醛异构物塔进行流程模拟计算,根据计算结果对丁醛异构物塔的进料口、工艺管线等进行了优化改造,并对其操作参数进行了调整。重新开车后,丁醛异构物塔塔顶异丁醛产品纯度达到99%,以上,塔釜正丁醛纯度在99.4%,以上(其中异丁醛含量小于0.1%,),满足下游辛醇工艺标准要求。由此,实现了选择性生产异丁醛与异丁醇的目标。

This study aims to optimize the product mix of butyraldehyde isomer column in #1 butyloctanol unit of Tianjin BohuaYongli Chemical Industry Co., Ltd. Process simulation of the butyraldehyde isomer column was conducted using Aspen Plus. Then, technique modifications to the feed stage and the process pipeline of the butanol isomer column were carried out, and operating parameters of the column were also optimized. When the column restarted, the purity of isobutyraldehyde and n-butyraldehyde reached above 99% and 99.4% respectively. Furthermore, the content of isobutyraldehydein the n- butyraldehyde was less than 0.1%, which meets the requirements of the downstream octanol unit. Therefore, the aim of selec- tive production of isobutanol and isobutyraldehyde was achieved.